tetml={filename={D:\drim\repository\projects\drim_25_0\metadata\1\c\1c275e86cbd033fb42fa0c9c5db5e33f\1c275e86cbd033fb42fa0c9c5db5e33f.tet.xml} elements={annotations=false bookmarks=false destinations=false fields=false javascripts = false} } granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 4. Environmental conditions All electrical component/equipmentis to be designed for continuous operation in the condition in the following ambient conditions. If stainless steel is used for items foreseen to beinstalled in outer areas, only AISI316 (not to be welded) or AISI316L (to be welded) steelis to be used. 4.1. Angular motion (Inclination of Ship) In compliance with LRs Part 6 Chapter 2 Para 1.9: Type of machinery, equipment o = Angles ofinclination, in degrees “ com ponent ee| Safety systems, e.g., emergency power installations, crew and passengersafety systems Switchgear, electrical and electronic appliances (a) NOTES (1) Up to an angle of 45° no undesired switching operations oroperational changes may occur. (2) Athwartships and fore-and-aft inclinations may occursimultaneously. (3) Where the length of the ship exceeds 100 m,the fore-and-aftstatic angle of inclination may be taken as: 500/L Degrees where L=Rule length, in metres, see LRs Pt 3, Ch 1,6.1. 4.2. Environmental Class (related to 721-3-6 IEC publication) In general Environmental Class for Electrical Equipmentto befitted on boardis to be: e 6K 3climatic e 6B 2 biological ¢ 6M 2 mechanical e 6C 1 chemical e 6S 1 mechanicalactive 4.3. Noise Level and Vibration Electrical equipment and machinery if not otherwiseindicated will be capable to operate without any malfunction in presence of vibrations up to the values indicated in the IEC 60092-101 standard. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Rotating electrical machines vibration to have maximum amplitude values corresponding to those indicated in IEC 60034-14. Rotor must be dynamically balanced complete with shaft half key in place, as foreseen by the Rules. Rotating electrical machines noise level must be in accordance with 60034 - 9 IEC Recommendation. Airborne noise level of low voltage transformers is to be maximum 60 dBa at 1 m, without enclosure (any direction). With the exception of low voltage transformers, the expected airborne noise level for each type of equipment, presented as average A-weighted sound pressure level (around the machinery), measured at a distance of one-meter front the surface in dB with ref. 2*10-5 Pa, must not exceed the value of 85 dB(A). granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 4.3.1. Test Procedure Whenrequired by the Builder all measurements in workshop have to be performed with machinery / equipment running at its nominal load or its normal operating condition by the Contractor. Where on board limits have to befulfilled as per Ship Specification, measurements will be performed to check the respectofthelimits. 4.3.2. Quality Control The noise behaviour shall be checked during design, fabrication andinstallation of equipment and machinery to ensure that the final noise/vibration limits will be complied with. Should any measured values overtake the a.m. relevant limits, the Contractor has to undertakeall actions needed to fulfil the requirements on his account. During the vessel's construction, inspection should be carried out to ensure that the actions taken to reduce the noise in accordance with the agreed predictions shall be effective. 5. Hazardous areas The vessel is equipped with liquefied natural gas (LNG) dual fuel engines. Here below the different hazardous areas and the prescription of electrical equipment expected to be installed in them. If special category spaces and hazardous areas are overlapping, electrical equipment selection and installation shall be for the most severe requirements herein mentioned. The classification of Hazardousareas shall be shown on Builder drawing: e Dangerous Goods Hazardous Classified Spaces Functional Arrangement 5.1. Electrical equipment installed beside LNG system Liquefied Natural Gas system comprises hazardous areas (e.g. bunker station) classified according Lloyd Register, IEC 60079-10 and resolution MSC 1/Circ.1591, MSC 95/22/Add.1 and MSC.1/Circ.1558. Electrical equipmentinstalled in zone 1 relevant to LNG hazardousareasshall be: Safe type Exd, Exe, Ex(ia orib) GasgroupIIA Temperature class T2 Minimum degreeof protection: granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Electrical equipment installed in zone 2 relevant to LNG hazardous areas, shall be tested specifically for zone 2, for example: e xn protection e Minimum class of protection: - |P56 in open decks, - |IP55 elsewhere. 5.2. Electrical portable ship equipment hazardous areas Electrical portable equipment usable in above mentioned hazardous areas shall be suitable for usage in them. Apparatus which could be interested to above mentioned requirements, but notlimited to, are: Portable radios Wireless phones Cellular phones Pagers Portable lamps Electric tools (e.g. drills, etc.) Electrical portable instrumentation (e.g. multi-meter, etc.) Since dangerous areas and LNG spacesfollows different classification regulation and prescription, ever refer to above mentioned Rules as well as to Builder drawing: e Dangerous Goods Hazardous Classified Spaces Functional Arrangement for proper selection of the electrical equipment to be used orinstalled in different hazardous zones. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 6. General technical prescriptions Main technical prescriptions for electrical equipment are provided in the following paragraphs. 6.1. Available electric supply Electrical poweris distributed to users with the belowlisted distribution systems: ttmVotageFreq.PhaseCond [Generatorst1001600go3| [MVmotrstto00go| [LVMotorsingeneral|g]go3s| equipmentaaoizeo6033 motors(see.also7.10.121)220eoanaa Fraconal WW ___}evnoo_}oo}oioe Radio plan zzorerooa132 ee plantgtgo8| Galley, pantry, washing machinery up to 3 220/120 pe]at 3/2+T kW incl. Lighting: ¢ normallined spaces 60 3/1 ¢ not lined spaces 60 3/1 ¢ portable 60 3/1 ¢ emergency/transitional 60 2 ¢ low locationlighting DC 2 Internal communications 220 60 1 2+T Alarms and signal 11 KV MSWB aux. Circuits 24/48 DC 2 2+T granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} tiemVotagerea.PhaseCond Sockets in general 440/220/127 3/1 3/24+T Shaver sockets in bathroom with isolating 220/120 2 2 transformer. 14N+T Cabin sockets for Americanfittings 27s]eooattenet High risk areas sockets 220/127* 60attaNaT Rigging equipment aee “T” means“earth” conductor. “N” means“neutral” conductor (*) 220VAC sockets in ER areas, 127 VAC socketsin outer areas. Main electrical power is generated and distributed at 11000V, 3 phase, 60Hz via a 3 wire. HV network is earthed through earthling resistors connected at the star point of HV generators. All other LV distribution network are system with neutral point unearthed. Earth insulated distribution systems will be provided with permanentinsulation level monitoring in accordance with Classification Society requirements. 6.2. Network voltage waveform Total voltage harmonic distortion in voltage waveform (THDv) is not to exceed the followinglimits: On High Voltage Network: e THDv < 5%with all four half motors configuration e THDv < 8%in degraded condition On Low Voltage Network: e THDv according Lloyd Register Rules. The supplied electrical equipment installed and connected on board is to be capable of operating within its design parameters and providing rated performance with a THDv up to 12%. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 6.3. Short circuit withstand of electrical equipment Components of electrical system are to be designed and constructed so as to withstand for the admissible duration the thermal and electrodynamic stresses caused by possible over-currents, including short-circuit. The rated short-circuit making and breaking capacity of every protective device is to be adequate for the prospective fault level at its point of installation. According to above, the Manufacturer have to require the relevant short-circuit value in the point of installation in due time and anyway not later than basic design stage. The Manufacturer must provide all the power rated values and any additional information in order to calculate the relevant short-circuit current in the point of installation. Protection relay coordination between various boards shall be documented and considered as included in the scope of supply. The Manufacturer must provide, for each point of installation a table as containing at least the information 6.4. Ingress Protection (IP) degree The IP rating for electrical equipment shall be in accordance with IEC standards and Lloyd Register Rules requirements. The following IP ratings are to apply for electrical equipment enclosures: • IP44 for engine spaces and open deck areas • IP56 for bilge areas where is to be provided • IP44 for galleys, pantries and laundries • IP22 for accommodation spaces In particular, for following equipment minimum protection (IP) ratings are to be as follows: • Low voltage main switchboards IP22 in switchboard rooms • Air conditioning boards IP44 in AC-rooms granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} • Medium Voltage (MV) switchboards IP32 • Group Starter panels (GSPs) IP22 in switchboard rooms • Cabin distribution units IP44 • UPS cabinets IP22 in switchboard rooms The IP rating for enclosures of distribution boards to be as follows: • Engine room and A/C Stations: IP 44 • Control rooms and accommodation dry spaces: IP 23 • Galley, laundries etc.: IP 44 • Open decks: IP 56 The IP rating for enclosures of junction boxes to be as follows: • IP44 for enclosed spaces • IP56 for weather decks • IP68 or highest if liable to be submerged Specific requirements for equipment in hazardous areas are detailed in section 5 of this document. 6.5. Labelling Marking of all switchboards, distribution panels, control boards, junction boxes and all other electrical components included in scope of supply shall be provided. Flame retardant materials are to be used for name plates, labels and mimic diagrams. Brass nameplates are to be used on exposed decks. The name and identification shall correspond with references used in the system drawings and documentation. Intelligible, permanent identification on external controls, instrumentation and circuit breakers as well as on internal components of electrical equipment shall be provided. Engraved “screwed on” (or, where not feasible, fixed by other suitable means) nameplates, with black letters on white background, are to be fitted to identify all switchboards, distributions boards and other electrical cubicles. Circuit breakers on switchboards and distribution panelboards, instruments, controls, etc are to be identified in accordance with Builder’s standards with engraved or printed text and fixed with screws, rivets or other alternative method that ensures easy replacement in case of need. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} All circuit breakers and miniature circuit breakers are to be labelled — close to the breaker — to indicate supplied consumer. Labelling of the internal components of the electrical equipment shall be according Manufacturer's standards. Forlabelling requirements, refer also to separate documents. 6.6. Painting schedule and colours The painting schedule to be detailed in the offer and to include at least: Surface preparation (elimination of metal defects, weld asperities, weld droplets; sharp angles rounding, cleaning, degreasing pickling, phosphatising). Paint type description (epoxy with solvent, powdertype, others). Method and condition of application: Product preparation, environment, Oven temperature, curing. etc. Dry film thickness to be specified with tolerance. External surfaces of electrical switchboards, transformers and rotating machinesshall be RAL 7019 colour with sheenfinish. 6.7. Indicating Lights and Push Buttons The colour code to be used throughouttheinstallation is to be as follows: |two P|(high pdclosed poclosed pdstop granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} perm PYopen PYContactoropen ee0 PJcuties All indicating lamps to be LEDtype. Indicator lamps for communication apparatus, navigation aids and LES equipmentare to be as per Mfr’s standard. 7. Electrical machinery and components 7.1. Rotating machines Rotating MV electrical machines(alternators, thruster motors, HVAC compressor motors and propulsion motors), are to be subject to the insulation qualification and acceptance tests described within IEC/TS 60034-18-42. An estimation of life expectancy, nominally 30 years underthe specific network conditions onboard,is to be determined. All the above machinesare to be subject to a partial discharge test in the factory and again between six months and one year after the delivery of the Vessel to establish a referencelevel for future trend analysis. Low voltage rotating electrical machines with a power rating of 5S0(0KW and above (LV alternators and LV motors for fans and pumps), are to be subject to the qualification and acceptancetests described within IEC/TS 60034-18-41. Rotating machinery i.e. generators and electric motors are to beinstalled in accordance with the required arrangementsfor the prime moveror the driven machine. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 7.2. Electric motors Motors integrated into machines or supplied in integrated units for galley, pantry, accommodation ladders and laundry appliances are to be in accordance with the Manufacturer’s standard. Motors are to be of the squirrel cage asynchronous type and are to comply with IEC standards. Main characteristics of all motors are to meet those required by the driven machine, such as pumps, compressors, fans, and as described in other Sections of this document. Auxiliary motors are to be rated about 10% higher than the maximum driven machine duty (pump, compressor or fan). Motors are to have class F insulation and class F temperature rise. Where variable speed drive (VFD) is installed, appropriate motor construction (in accordance with IEC 60034-25) is to be used according to motor Mfr. Prescriptions. 7.2.1. Enclosure and Installation Motors installed on weather decks and those used for grinders, pulpers and axial flow fans are to be completely enclosed (IP 56 protection). The six ends of the windings are to be led into the terminal box. The terminal box is to be built in accordance with the Manufacturer’s standard and is to have the same protection degree as the motor. The terminal block for the motor supply cables is to have studs, nuts washers and copper links or bars in accordance with the current rating of the motors. Motors are to be installed in such a way that the terminal box has direct unobstructed access. 7.2.2. Revolutions All motors up to and including 350 kW are to be rated at 1800 rev/min. Motors over 350 kW are not to exceed 900 rev/min unless otherwise specified in this Specification. Changes to these limitations are to be subject to Buyer’s approval. 7.2.3. Standstill Heaters Standstill heaters without thermostat are to be provided for motors fitted on weather decks with IP 56 protection, for essential motors over 20 kW, and for motors with water coolers, IP 44 protection. Thruster motors heaters are to be provided with thermostats. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Heaters are to be supplied at 220 V via the auxiliary transformers included in their starters. The power supply for heaters is to be separately protected from the motor control circuit. If, in exceptional cases, it is necessary to supply the heater from a separate external supply, the heater circuit supply is to pass through the main starter isolating switch so that the heater supply can be isolated. Heaters are to be controlled via an auxiliary contact of the main contactor or associated relay. The “heater on” pilot lamp is to be fitted on the starter front door. Heater terminals on the motor are to be separately protected, shrouded and labelled. 7.2.4. HV motors For motors with a rated power higher than 500 kW, the supply voltage is to be 11000 V, three phase, 60 Hz. 11000 V motors are to have a fabricated steel frame with cross members. 11 kV motors air conditioning compressors, are to be IP 44 protection. Fresh water coolers for the 11000 V thruster motors are to be provided. Heat exchangers construction reference as follows: Inner tubes (water side) Cu/Ni 70/30 Fined outer tubes (air side) Cu Tube plates (water side) Naval brass Tube plates (air side) Galvanized steel Water boxes and flanges Steel (with Rilsan protection) Anodes no anodes Cooling of A/C compressor motors to be in accordance with the standard approved during Manufacturer’s selection. Each 11000 V thruster motor is to be provided with: - three Pt 100 thermo-resistances plus one as spare on each winding (total twelve) - one Pt 100 thermo-resistance on DE bearing and one Pt 100 thermo-resistance on NDE bearing. - one Pt 100 thermo-resistance at cooling air outlet. - one water leakage detector with local indication and SPDT electric contact. Interface with IAMCS will be provided. Each air conditioning compressor motor is to be provided with the same monitoring as the thruster motors if fresh water cooled or, if alternative design for cooling is provided, granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} monitoring for that is to be in accordance with the standard approved during Manufacturer’s selection 7.2.5. LV motors For motors up to and including 500 kW, the supply voltage is to be 690 V (or 440 V), 60 Hz. Fractional motors below 1 kW for various services may be supplied with 690/440/230/220/127 V A.C. single or three phase, 60 Hz, in accordance with the Manufacturer’s standard. 690 V and 440 V motors are to be rated for an ambient air temperature of 50°C and to be capable of operating continuously with the maximum total harmonic distortion in voltage waveform (THDv) foreseen for all supplied electrical equipment, as detailed in 6.2. 690 V and 440 V motors are to have frame and end shield materials in cast iron, except for motors rated below 1 kW. 690 V and 440 V motors are to be totally enclosed of IP 55 protection externally fan cooled. The LV motors bearings are to be of the end-shielded radial ball bearing type with preloaded axial spring suitable for grease lubrication and equipped with grease nipples. Small motors with bearings “grease packed for life” in accordance with the Manufacturer’s standards may be proposed, subject to Owners approval. The grease used for the bearings is to be in accordance to the operating conditions and the Manufacturer’s requirements. LV motors efficiency is to be in compliance with IEC 60034-30-1 with the implementation time schedule according to EU Minimum Energy Performance Standards. Motors will be rated to work also up to 50°C but IE3 performance will not be guaranteed above 40°C. Motors designed exclusively for converter operation or fully integrated into machines are exempted from the above requirement. Rigging motors, motors foreseen to run only for short intervals (with duty type outside those specified by IEC 60034-30 standard) and motors foreseen to function only in emergency conditions (e.g. EDDG radiator fan, Hi-Fog pumps) are exempted from complying IE3 standard, and are to be rated to the Mfr standard . 7.3. Transformers Transformers are to be treated to resist moisture, oil vapour and salt air. Electrostatic screens between the windings are to be provided for medium and low voltage transformers. Maximum voltage drops are to be according to classification requirements. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Dismantling and removal of cast resin transformer coils is to be achievable minimising interference from the main vessel’s structure, including piping and cable trays. Thermal inspection windows are to be provided to enable monitoring of cable connections. Resilient mountings are to be provided to prevent iron core vibration transmission to the structure. 7.3.1. LV transformers Low Voltage transformers are to be single phase, 3-phase or three times single phase grouped with one or two secondary windings. Each low voltage transformer will have the following characteristics: • Technology: Dry type, resin coated • Cooling: Natural air cooling • Windings: Copper • Insul./temp. rise class: F/B • Protection: IP23 • Service: Continuous Together with rated voltage terminals, the primary winding is to be equipped with taps (± 2.5% and ± 5% of rated voltage) for output voltage regulation. LV/LV transformers of 400kVA and above to be provided with • two PT100 sensors for each secondary winding phase, one connected to local display and one spare; • anti-condensation heaters. LV/LV transformers to have resin impregnated windings designed in order to allow disassembling. To make the disassembly possible, the magnetic core shall not be resin impregnated but coated with a corrosion resistant sealant. Low Voltage Transformers shall be provided with a base-frame that can be directly welded on the bridge. Resilient mountings shall be installed between the base frame and the bottom plates of transformer enclosures to prevent iron core vibration transmission to the structure. The cable connections are to be done on a dedicated terminal board suitable for cable connection with lugs, nuts and bolts. Internal connection between windings and terminal board are to be done by cables or bars. The terminal box is to be mounted externally of the transformer in general on one of the shortest sides. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 7.4. Cables Before the order, the Supplier/Manufacturer of the system is to clearly inform of all special requirements for cable installation (separate cable trays, special EMI level, steel pipe protection, subject to be damaged from painting, others) and type (armoured cable, screened cable, others). Where recommended by Supplier, special cables may be used. Cables included in scope of supply are to be either of the Type Approved type or according to the applicable standards among those listed below. Relevant certificates and data sheets to be provided. Where recommendedby Supplier, special cables may be used. As far as possible, the equipment/machinery must be delivered to the Shipyard with cablesfitted on it already installed and connected, i.e. all cables fitted on machinery and that are not to be connected with other plants, are to be already installed and connected. The cablesare to be in accordancewith: IEC Publication 60092 series IEC 60332-1 (single cable) and 60332-3 (bunched cables) for flame retardant characteristics IEC 60331 for fire resisting characteristics IEC 60754-1 & 2 for halogen free properties of low voltage cables IEC 61034-1 & 2 for smoke density measurementof low voltage cables IEC 60228 class 2 for standard conductors and class 5 for flexible conductors limited to largest cross sections of low voltage power cables (16 mm2 andover). Main power(greater than 80 amps) cablesare to be in one length and joints or sharp bendsare not permitted. The maximum working currentfor all cables is to be in compliance with the Classification Society or IEC Rules. Electric cables are to be of the “halogen free” low toxicity type except special cables wherea halogen free version is not available, in which case they are to be of a flame retardant type with low emission of smoke, toxic and corrosive gases. These non- halogen free cables are subject to the Buyer’s approval on a casebycasebasis. Fire resistant cables are to be used for Safety Systems, in accordance with Classification Society, and Safe Return to Port (SRtP) requirements. Fire resistant cables are required where the ambient temperature exceeds 70°C. Fire resistant cables to be used for SRtP essential system are to comply with interpretation 13 of the IMO MSC.1/Circ. 1369 and areto fulfil following prescriptions: granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} • All cables that need to remain in operation after a fire casualty are to be in compliance with IEC 60331-1 and IEC 60331-2, and are to be installed according to Builder’s standards. • Cables of rated voltage up to and including 0.6/1.0 kV with an overall diameter not exceeding 20 mm are to be in accordance with IEC 60331-2 and CEI EN 50200 Annex E for water spray withstand. • Cables of rated voltage up to and including 0.6/1.0 kV with an overall diameter exceeding 20 mm are to be in accordance with IEC 60331-1 with an additional water jet test. The additional test consists in the application of five bursts of water (5s duration) repeated every minute during the last five minutes of IEC test, as indicated in the BS 8491. The water jet device to be in accordance with BS 8491. The flame and shock application devices are to be according to IEC 60331-1. 7.4.1. MV cables Medium voltage (M.V.) cables complying with IEC 60332-3-22, category A, are to have: • Conductor: Tinned copper stranded conductors -IEC 60228; • Conductor screen: Extruded semi-conductive layer around the conductors • Insulation: Extruded Ethylene Propylene Rubber HEPR or XLPE according to IEC 60092-360. • Insulation screen: Extruded semi-conductive layer around the insulated conductor • Metallic screen: Copper tape screen or semi-conducting tape with copper spinning around each insulated conductor • Inner covering: Extruded thermoplastic halogen free compound. In three core cables, halogen free inner covering to include triple semi compressive insulating round halogen free fillers. • Armour: Tinned copper wire or galvanized steel wire braid armour; • Outer sheath: Red color halogen free compound SHF1 according to MV cables are to be armoured. IEC60092- 360 to be stamped with Maker’s name, cross section, type of cable, Rules in compliance with. The cable construction of the high voltage generation and distribution system to be suitable for the operating voltage of 11kV, i.e 8.7/15(17.5) kV, with conductor screen, core screen and overall armour. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Medium voltage cable between propulsion transformers and converters, including the cables to the actual motors are to be rated according to the voltage of the selected propulsion system. Cable terminations to be such that there is satisfactory stress grade at the cable ends. Cable connections are to be carefully prepared and sealed to prevent ingress of moisture. If single core cables are used, precautions must be taken against circulating currents in the sheaths or screens. 7.4.2. LV cables Low voltage (L.V.) cables complying with IEC 60332-3, category A, up to and including 10 mm2 with the following construction standard: • Conductor: Red copper stranded conductors -IEC 60228; • Insulation: Extruded Ethylene Propylene Rubber EPR or XLPE according to IEC 60092- 360 • Inner covering: Fire retardant tape (if armoured) • Armour (if any): Galvanized steel or red copper wire braid; • Outer sheath: Halogen free compound SHF1 according to IEC60092-360 to be stamped with Maker’s name, cross section, type of cable, Rules in compliance with. For not armoured cables, outer sheath to be of the extruded- penetrating type. Low voltage (L.V.) cables complying with IEC 60332-3, category A, above 10 mm2 with the following construction standard: • Conductor: Red copper stranded conductors -IEC 60228; • Insulation: Extruded Ethylene Propylene Rubber EPR or XLPE according to IEC 60092- 360 • Inner covering: Halogen free fillers and flame retardant tape • Armour (if any): Galvanized steel or red copper wire braid; • Outer sheath: Halogen free compound SHF1 according to IEC60092- 360 to be stamped with Maker’s name, cross section, type of cable, Rules in compliance with. The external sheaths of the low voltage cables are to be of the following colours: granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} RALdescription Type of cable 9004 Signal Black Power 6018 Yellow Green Small power and lighting (with incorporated Yellow/Green protection conductor) 2003 Pastel Orange Multicore andtwisted pair The external sheaths of SDCN data cables are to be subject to a unique colour scheme. Powerand lighting cables, unless otherwise stated, are to be 0.6/1 kV grade with a maximum operating temperature of 90 deg. C. Multicore cables with cross section above 1 mm2 are to be 0.6/1 kV. Twisted pair cables with cross section above 0.75 mm2 are to be 150/250 V grade. Cables sensitive to interference are to be provided with additional screens made of aluminium polyester tape ensuring 100%screening capacity. Cable screening mayconsist of overall collective screening, individual pair screening or overall plus individual pair screening dependent on system requirements and sensitivity to interference, according to system manufacturer's recommendation. Multi-core and twisted pair cables are to be markedat regular intervals with a number separately identifying each core or each pair. Motor supply cablesto haveat least 10% spare capacity, above the motor rated current. The cables supplying all section board and distribution board are to haveat least 10% spare capacity, taking into accountthe load factor. Where “fire resistant cables” are required by the Rules (e.g. emergency circuits), or where the ambient temperature exceeds 70°C, the cables are to havein addition to the above: e Mica-glass tape over the conductor/s or equivalent solution to meet the requirements of IEC 60331. Cables feeding the propulsion excitation cubicles are to be armoured. Cables for internal connection of electric equipment are to be in accordance with the Mfr. standard if accepted by the Classification Societies. The minimum size allowable for fixed wiring for power andlighting cables is 1.5 mm’. Cables of smaller cross-sectional area may be used for specific purposes such as terminal wiring of decorative lighting in cabins or public areas, subject to Buyer's approval. Cables for the secondary side of the lighting distribution (downstream the electronic ballast) can be 1mm’,flexible type. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Minimum size of standard multi-core twisted pair cables for communication and instrumentation systems is to be 0.75 mm 2 . However for communication data and instrumentation, multi-core cables with smaller cross section may be used to satisfy system specification, for example CAT6 or other international data cable standards. Please refer to SDCN description for additional information regarding data cables. Cables for portable lamps are to be oil resistant, and not less than 1.5 mm 2 . Where recommended by subcontractors and approved by Buyer, special cables may be used. Cable size for low voltage AC and DC equipment to be calculated according to voltage drop which is not to exceed 6%, and 3% for navigation light circuits. 7.4.3. Installation of cables The cable installation is to be in accordance with the IEC Publications 60092-401, 60533 and the requirements of SOLAS and of the Classification Society Rules requirements. Where cable installation is included in scope of supply, refer to separate document. The following groups of cables are to be routed separately: Group J High voltage cables EMI generating NOT EMI susceptible Group K Power cables and lighting feeders EMI generating NOT EMI susceptible Group N Remote control and signal (relays, mechanical contacts and coils) Low voltage/current signals (sensors, communication, audio equipment, data communication bus, etc.) Group S Thyristor controls, high frequency signals (antennas, radar scanners, log, Echo-sounder, etc.) EMI generating (transient voltages/currents) Slightly EMI susceptible Slightly EMI generating EMI susceptible Highly EMI generating or Highly EMI susceptible The separation of cables carrying various voltages and used for various services is to meet the Classification Society Rules requirements. All cables are to be routed on metal trays, conduits, pipes and individual supports according to Builder’s standards. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Galvanized steel trays are not to be provided with further primer and painting. External cable trays and supports to be made of stainless steel. Bare steel trays or supports for them, are to be provided with surface preparation, priming and painting according to Builder’s standards. Spare capacity on cable trays is to be provided, although it is accepted that the Builder may use some of the spare capacity for late additional cables. Cables shall be effectively supported and secured without outer sheath damage, respecting their minimum bend radii. All cables are to be secured to withstand the effects of system fault currents. Where flame retardant plastic fasteners are used, metal clips must be installed in accordance with Yard’s installation procedures and Classification Society requirements. Approved flame retardant plastic straps are to be used to secure coaxial cables to avoid signal attenuation. The distance between supports is to be in accordance with Classification Society requirements. Medium voltage cables are to be fitted over their full length in galvanized steel duct with holes. Soft packing is to be installed between cables and clips on 11 kV system 11 kV cable trays are to be marked, at regular intervals, as follows: DANGER-HIGH VOLTAGE- 11.000 VOLTS. Single core cables are to be interposed at intervals of approximately 15 m or installed in trefoil formation. Vertical cable runs in machinery spaces shall have steel fastening clips. Cable runs shall be accessible and kept away from excessive heat sources and from steam and exhaust gas pipes, and shall be avoided in spaces exposed to drip or accumulation of water or oily vapour. Where cables are exposed to any mechanical damage in baggage handling, store handling and other exposed spaces, they shall be protected by steel plate or steel conduit in accordance with the Builder’s practice. As an alternative galvanized steel flexible hose may be used in some circumstances where approved by the Buyer. The cover plates for these cables to be of the type which does not allow water to collect from condensation or the sprinkler/water fog system. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Cables seriously damaged during the installation and therefore not capable of carrying the relevant voltage and current, or not capable of supporting specified data or communication standars are to be renewed over the entire length. Cable runs are not to pass through refrigeration spaces. Cables are to be laid above and not under water and steam pipes. Exceptions may be made for crossing where unavoidable. Installation of main cable ways in accommodation areas to be on galvanized steel cable trays. The minimum distances from the bulkhead to cable supports in unlined spaces are to be as follows: • Cable trays below 300 mm: 100 mm • Cable trays above 300 mm : 150 mm Cable trays fitted in machinery spaces are to be steel plate protected where they are 1.5 meters or less above the floor plates. Cables supplying appliances in exposed locations are to be to run inside the superstructure. Cables on masts or posts are to be routed inside Cable runs are to be kept clear of open decks in passenger areas. No electrical cable run is to be installed below the lower engine room platform. If cables are to be fitted in bilges for sensors or lights, they are to be led in tubes under the floor. The tubes are to be fitted with drain holes and securely attached to the ship’s structure, and are to be provided with plastic anti chafing inserts at both ends for cable protection. In living quarters, offices and public rooms, cables are to be located either behind or within the lining and secured to iron rods by means of approved plastic straps or are to be run in steel conduits. In unlined public spaces, cable trays are to be covered. Cables to plug sockets, switches and lamps, are to be installed and concealed. If concealing is not possible in specific cases, the wiring to be covered by special mouldings in plastic or light alloy. Decorative mouldings to be arranged so that an easily removable section of duct is fitted next to the outlet being served. Single cables may be fixed with clips on existing frames. Cable ends and conductors are to be marked at each connection point in accordance with drawings and international standards. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Cables are to have their ends marked with plastic numbers type cable markers to identify them with their respective numbers shown on the circuit diagrams. Power cables ends are to be marked with the phase indication. Each end of sensor cables are to be tagged with the address number corresponding to that listed in the register of alarm and measurement monitoring points. Cables under 6 mm2 are to have a free loop of wire for later convenience. Conductors of 1.5 mm2 and above are to terminate in pressure crimped cable terminals. Exception may be made for pressure-type or equivalent terminal blocks. Connections are to have washers, nuts and locknuts. No more than two cable cores are to be terminated at one point. Where flame-proof, intrinsically safe or high operating temperature equipment is provided, the electrical cables and passages are to meet the requirements for such equipment. Cables are not to be painted. Prior to painting in an area, all cables are to be covered / masked. All electrical cables in DDGG add EDDG rooms, oil fired boiler areas, fuel oil and lubricating oil separator rooms, and external fan rooms on the upper decks are to be coated with the FIRE SECURITY coating system. Electrical connectors of an approved type may be used in lined areas for lighting, PA and fire detection terminal equipment. 7.4.4. Earthling Except where exempted as mentioned hereafter, all non-current carrying exposed metal parts of electrical equipment and cables are to be earthed for personal protection against electric shock. The following parts are to be exempted from the requirements • spare cables, and spare cores in used cables • lamp-caps, where suitably shrouded; • shades, reflectors and guards supported on lamp-holders or light fittings constructed of, or shrouded in, non-conducting material; • metal parts on, or screws in or through, non-conducting materials, which are separated by such material from current-carrying parts and from earthed non- current carrying parts in such a way that in normal use they cannot become live or come into contact with earthed parts; • apparatus which is constructed in accordance with the principle of double insulation; • bearing housings which are insulated in order to prevent circulation of current in the bearings; • clips for fluorescent lamps; granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} • cable clips and pipes for cable protection; • apparatus supplied at a safety voltage not exceeding 50 V DC or 50 V AC, between conductors, or between any conductor and earth in a circuit isolated from the supply. Autotransformers are not to be used for the purpose of achieving the alternating current voltage; • apparatus or parts of apparatus which although not shrouded in insulating material is nevertheless otherwise so guarded that it cannot be touched and cannot come in contact with exposed metal. Electrical consumers are to be bonded to earth and between removable / hinged parts of their structures by means of earth bonding straps. Consumers fed via cables up to 2.5mm2 may be connected to their distribution point’s earthling bar via the earth core of the feeder cable. Consumers fed with cables of greater cross-sectional area are to be bonded locally direct to the hull. Standard cabinets and racks may utilise their Manufacturer’s approved bonding method for connection of all non-current carrying parts with one dedicated bonding strap to hull. • Armouring, braiding and other metal coverings of cables are to be effectively earthed. Where the armouring, braiding and other metal coverings are earthed at one end only, they are to be adequately protected and insulated at the unearthed end with the insulation being suitable for the maximum voltage that may be induced. The cables earthling / bonding to prevent excessive circulating currents and overheating of the cables • The electrical continuity of all metal coverings of cables throughout the length of the cable, particularly at joints and tappings is to be ensured. • Metal parts of portable appliances, other than current-carrying parts and parts exempted are to be earthed by means of an earth-continuity conductor in the flexible cable or cord through the associated plug and socket-outlet. • Earthing conductors are to be of copper or other corrosion-resistant material and be securely installed and protected where necessary against damage and also, where necessary, against electrolytic corrosion. Connections are to be so secured that they cannot work loose under vibration. • The nominal cross-section areas of earthing conductors for electrical equipment are, in general to be equal to the cross-section of the current-carrying conductor up to 16 mm2, with a minimum of 1,5 mm2. Above this figure they are to be equal to at least half the cross-section of the current-carrying conductor with a minimum of 16 mm2. • The nominal cross-section areas of copper earthing conductors for armouring, braiding and other metal coverings of cables are, in general, to be equal to the equivalent cross-section of the armouring, braiding and other metal coverings with a minimum of 1.5 mm2. • Earthing conductors of materials other than copper are to have a conductance not less than that specified for an equivalent copper earthing conductor. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} The connection of the earthling conductor to the hull of the ship is to be made in an accessible position, and is to be secured by a screw or stud of diameter not less than 6 mm whichis to be usedfor this purpose only. Bright metallic surfaces at the contact areas are to be ensured immediately before the nut or screw is tightened and, where necessary,the joint is to be protected against electrolytic corrosion. Earthling of cable braiding, cable supports and metallic cable protections are to meet the requirements of the system supplier and to be verified by Classification Society. Signal cable screens are to be earthed in accordance with the requirements of the Manufacturer of the equipment. Earthing is to be continued through junction boxes and otherfittings such as conduits. Power cable armour and screens are to be earthed at both ends of the cable, unless required at one endonly for operational reasons. All exposed continuous metal work in bathroomsis to be bonded together (equipotential bonding) and earthedto the hull at an accessible location in the cabin technical space. 7.4.6. Bus-Bar Marking Bus bar markingis to be: AC system D.C. system Phase R markedL1 Positive (+) L +, Red Phase S marked L2 Negative (-) L-, Blue Phase T marked L3 Neutral marked N Where distributed, the neutral conductor shall be of the distinctive colour blue. The colour of the earthling conductoris always to be green andyellow. 7.4.7. Cable types allowed Enclosures C1 and C2 of this document include the standard/special cable types that can be usedto design/implement the systems on board. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} In any case, the cables not included into the Enclosure C1 and C2: o shall be provided by an Type Approval certificate from a Classification Society and shall respect the relevant cables typology regulations and contractual obligations included into this document(in particular into paragraphs 0, 7.4.1, 7.4.2 and 7.5). May one of the a.m. conditions not be satisfied by a cable typologystrictly required by the system design, the supplier shall issue the detailed documentations, including relevant tests, in order to get a “by-case” approval. The supplier shall implement the system design in order to minimize the use of cables not included into the Enclosure C1 and C2lists. The cables not included into the Enclosure C1 and C2 but approved for the system design shall be part of the supplier scope,if no specific request of de-scoping is issued . These cables shall be clearly identified in the system offer and shall have a dedicated quotation value. Relevantcosts for test and/or approval required for the use of a cable not included into the Enclosure C1 and C2 shall be at suppliers charge. If the supplier wish to use a specific manufacturer/model for a cable type included into Enclosure C1 and C2list, this cable type shall follow the same approval process as it would have been necessary for a cable type notincludedinto the a.m. lists. Cables inside panels (i.e. not running in the ship) or included in the scope of supply of the Supplier can be freely chosen, within the limits of this document. 7.4.9. Cable penetrations Cable penetration shall be in accordance with Builder’s standardinstallation procedure. Cable penetrations to be asfollows: granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Below the bulkhead deck Abovethe bulkhead deck Type of penetration ; Compression type MCT Watertight Fire Proof Compression type MCT Inside the flooding area for Watertight and Fire-Proof Compression type MCT Outside the Compression type MCT flooding area Spare capacity on cable penetrations is to be provided, althoughit is accepted that the Builder may use someof the spare capacity for late additional cables. For cables passing through beams, non-watertight bulkheads and openings, plastic flame retardant bushing are to be provided. Wherecables enter motors, starters and other powerandlighting electrical appliances, glands or heat-shrinkable sleevesare to be installed. Heat-shrinkable sleeves are to be used only wherecables enter from the bottom. On external decks, or where cable penetrations are exposed in pantries, Galleys, garbage areas, or they are at the lowest level of machinery spaces, cable glands (not heat-shrinkable sleeves)are to be fitted. Cable penetrations for generators, medium voltage and propulsion electric motors, medium voltage transformers and propulsion converters are to be of the modular compression type MCT. Where cables enter electrical enclosure from the top, compression type MCTs or an equivalent solution maintaining the IP rating of the equipmentare to beinstalled subject to Buyer's approval. 7.5. Fiber Optic Cables Fiber optic cables shall be in accordance, as far as applicable, to the relevant requirements of Electrical cables (see paragraph 7.4) granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 7.6. Switchboards and distribution boards 7.6.1. General All switchboards shall comply with IEC 60092-302 (LV) and 60092-503 (MV). The construction of LV substation switchboards is to conform to form 4b construction as defined in IEC60439. The construction of LV GSP starters is to conform to form 4b construction as defined in IEC60439. Incoming and outgoing cables are to penetrate from the top or bottom. Modular multiple cable transits are to be foreseen on the top. Control and instrumentation voltages shall not exceed 230 volts. 7.6.2. LV Switchgears Each switchgear is to be provided with switchboard (SWB) units of dead-front type, mounted on a common steel base. Construction is to be arranged to allow safe and clear access to all parts and components for maintenance, service, replacement, monitoring, adjustment and inspection in service. Live parts are to be provided with protection against inadvertent contact. Units are to have side and top cover plates, hinged front and rear doors(where construction is designed for rear access), the bottom plates are to be provided with suitable cable passages. The switchgears are to have a drip proof enclosure with IP protection in accordance with the requirements of 6.4. In general cooling shall be provided through natural ventilation. Forced ventilation to be discussed case-by-case . The base is to be made of rugged steel profiles, the supporting frame for the units are to be made of profiled steel plates, minimum 2 mm thick; doors and covers are to be minimum 1,5 mm thick steel plate (thicker plates required for structural elements). The construction is to be suitable for shipboard installation and is to be fitted on resilient mountings. Resilient mountings are to be fitted between switchgears’ bed plates and counter-base plates to be welded on the deck. It is to be possible to open front doors without removal of CB handles. Insulated handrails or insulated handles suitably fitted on the front of the switchgear shall be provided in accordance with Rules Requirements. Where access to the rear is required, insulated handrail or handles are to be suitably fitted on the rear of the switchgear. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} The doors are to automatically secured when in the open position and divided in two parts in height. Hinged panels doors which carry equipment and devices operating at 24 volts or more, are to be fitted with a flexible earth connection to the main frame. Control devices and instruments having metal handles or cases are to be earthed. All metalwork shall be bonded together and to earth; an earth bar shall be provided. Cable screens, transformer earth screens, and current transformer secondary shall be connected to the earth bar. 220 V plastic material fluorescent/LED lighting fixtures are to be provided for switchboard with rear access for internal illumination together with 220 V sockets. All wiring, protective devices and terminal boards to be indelibly marked in accordance with the wiring diagrams. Location of internally mounted operators controls is to be indicated by external labels. Outgoing circuits are to be provided with labels on the outside of panels which indicate circuit number and name of consumer. A prominent and permanent warning notice giving the maximum voltage to be fitted at the ends of the switchboard for caution. 7.6.3. LV Distribution boards The power, small power and lighting distribution boards are to consist of a painted steel cabinet with hinged doors, a bus bar system and appropriate protection circuit breakers. The distribution boards are to have a drip proof enclosure with IP protection in accordance with the requirements of 6.4. The live parts are to be protected by steel covers with insulated handles for removal. The doors are to have a self-locking latch to keep them in the open position. Labelling of the circuits is to be provided inside, on the protection plate. A list of all circuits is to be provided and fitted inside of each distribution board. 7.6.4. Internal wiring Internal wiring shall be of multi stranded heat-resistant type with numbered ferrules and crimped terminals at each end. Wiring is to be run in looms, securely cleated, protected and supported, or routed in synthetic flame retardant cable trunking with covers. Where internal wiring passes between sections which may be split for shipping or installation, terminal blocks are to be provided. Connections to components on hinged panels are to be flexible, taped or loomed and arranged so as not to chafe on metal edges or impede access when the panel is open. All wiring is to be arranged so that there is no stress on terminals. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Wires for control circuits are to be arranged in approved synthetic flame retardant cable trays with covers. 7.6.5. Connection cables and bus-bars Power cables will be connected in input and output to the electrical equipment as foreseen by the supplier (e.g. connection on busbars, on terminals of circuit breakers/switch disconnectors, on threaded studs, on terminal blocks, etc). Terminal blocks for power and control wiring shall be of the screw type. In particular, for power cables with cross section greater than 2,5 mm^2, terminals shall be of the bolt type for cable connection with lug. The connection of the power cables will be carried out following the specific instructions of the equipment supplier and the Builder’s installation standards. Cables for communication, data and instrumentation systems will be connected the electrical equipment as foreseen by the supplier. Adequate provision to be made for main and control cable access and installation, cable supports to be provided if necessary. Suitable cable entrance to be provided in all cases and there shall be provision of earthling cable screens when required. Cable terminations are to be suitable for the circuit current and voltage, the connected cables and system fault level. The bus bar systems are to be designed on the basis of the maximum rated current of the upstream dedicated transformer/feeding line and are to be supported to withstand the electrodynamics stresses of prospective short circuit currents. Bus bars connections shall be made so as to inhibit corrosion and maintain joint integrity. Connections between bus bars and circuit breakers, switches etc. are to be mainly in copper bars. Other solutions (e.g. flexible bars, double insulated connections) can be used according to Manufacturer’s standard. The bus bars are to be identified with coding markers. The temperature rise for bus bar compartments is to be in accordance with Classification Society requirements. The temperature rise of other compartments is not to exceed 20°C. Local increases may be accepted, provided that these are not in the vicinity of electronic components. 7.6.6. Auxiliary circuits Switchboards are to be complete with all necessary supplies. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} The interlock circuits for the 11 kV MSWB CBs and contactors, ER-SUB main, CBs, for incoming supply lines of distribution transformers and associated relays are to be supplied at 110 V DC. All other auxiliary circuits are to be supplied with at max. 220 V - 60 Hz through auxiliary transformers which are to be protected by automatic circuit breakers of plug-in type directly connected to the bus bars, or at max 110VDC. 7.7. Junction Boxes Junction boxes are to have a drip proof enclosure with IP protection in accordance with the requirements of 6.4. All terminals in junction boxes are to be of the compression type. The junction boxes used for splicing are to be marked with voltage level(s) and box identification. Junction boxes are to be installed for each lighting fixture with heat resistant wires to lighting fixture. Junction boxes above deck head linings are to be indelibly marked, and indication of their locations is to be given on panels. Junction boxes are not to be fitted under windows, scupper pipes or water/fuel/oil/steam pipes. 7.8. Terminal boards Where the equipment is provided with terminal boards, these must be suitably marked. Polyamide, or equivalent, insulated terminal blocks to be approved by Classification Societies and to be fitted inside metal terminal boxes. Terminal boards for power and control wiring shall be of the screw type. In particular, for power cables with cross section greater than 2,5 mm^2, terminals shall be of the bolt type for cable connection with lug. The installation of plastic material terminal boxes is allowed only if demonstrated to be of: • best available quality • flame retardant type • not releasing incandescent molten plastic drops during burning (class V0 according to UL 94 flammability testing) or toxic/harmful gasses The terminal boxes and the cubicles are to be sized in order to have adequate free space to contain all conductors (spares included) to be connected to the terminal boards. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} The terminal box of all equipment are to be designed considering a max temperatureof the bus bars cable connection of 90°C at nominal power 7.9. Automatic CBs and switch disconnectors Circuit protection is to be by circuit breakers and not fuses. Fuses may be used for: 11kV contactors 11 kV measuring voltage transformers, Motorshort-circuit protection; only if approved, for starters part of system packages Auxiliary circuits protection, only if approved, as part of system packages Protection of electronic equipment The CBs, switch disconnectors and HV contactors with fuses shall: be suitable for installation on board have adequatecurrent carrying capacity for the normal rated current, have adequate breaking and/or making capacity to withstand short circuit currents in accordance with IEC 61363-1 proceduresfor calculating short circuit currents in three phase A.C 7.9.1. HV_Switchboards’ automatic CBs and contactors with fuses The main circuit breakers are to be vacuum type and contactors are to be vacuum type with digital protection devices. The CBsand contactors with fuses are to be of the withdraw-able type with test position, electric and emergency manual control and are to be equipped with the necessary interlocks to avoid unsafe operation. The CBsof generators and transformers are to be controlled by time delayed relays for selective protection. The CBs equipped with shunt opening coils are to have coil opencircuit monitoring . 7.9.2. LV _switchgears automatic CBs and switch disconnectors All outgoing circuits from LV switchboards and distribution boards to be by automatic circuit breakers (fuses cannot be used). granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Automatic CBs installed in LV switchboards are to be of the same Manufacturer. All circuit breaker to have open/closed indicators. Switch disconnectors are to be of the on-load switching type Switch disconnectors at transformer secondary may be replaced with automatic CBs when necessary for the purpose of overload protection. CBs up to 630 A rated current are to be of moulded case (MCCB) plug-in or air withdrawable type; automatic CBs over the above rated current are to be of the air (ACB) withdrawable type. Withdrawable ACBs are to be fitted with solid-state microprocessor based protection system. All necessary displays are shown on indication panel. Local programming to be provided. The control unit is to give a display of the electrical quantities relevant to the protected circuit, i.e. current in each phase, voltage phase and line, power, power factor and frequency. Open type CBs are to be provided with interlocks to prevent withdrawal from the cubicle when the circuit breakers are closed and to prevent closure if not correctly secured in the cubicles; circuit breakers are to be provided with test facilities which can be operated in the withdrawn position. Selective protection against short circuits is to be provided but limited to CBs of incoming supply lines and to CBs of outgoing supply lines of distribution boards. Automatic CBs types and characteristics are to be submitted to the Buyer for approval (through the selectivity study). In each LV switchgear, about 10% spare distribution circuit breakers as well as spare spaces to be provided. 7.9.3. LV distribution boards’ automatic CBs and switch disconnectors Outgoing circuits of each LV distribution board shall be protected as follows: 1) 690 V and 440 V circuits are to be equipped with three-pole molded case automatic circuit breakers of the plug-in type, with overload and short circuit protection. 2) 230 V, 220 V and 120 V circuits are to be equipped with 2-pole, 3-pole or 4-pole moulded case circuit breakers of miniature type circuit breakers (MCB), with overload and short circuit protection. 3) Residual current protection devices are to be provided for: - passengers and crew cabins sockets and lighting circuits - free sockets in public areas - table and free standing lamps (if any) in public areas granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} - E.R. spaces Residual current protection device (30 mA)is to befitted to the CB furthest downstream the circuit 4) Only miniature circuit breakers to be used. 5) 24 V circuits are to be equipped with 2-pole MCBs, with overload and short circuit protection. 6) The externallighting distribution boards are to be provided with contactors to remotely control the externallighting circuits from the Wheelhouse. In each LV distribution panel to be provided with an incoming busbarisolating switch or oneCBis to be provided in case the automatic circuit breakers are of the miniature type; where plug-in type molded case CBsare provided, the bus barisolating switch is not to be fitted. The CBtype and characteristics are to be submitted to the Buyer for approval (through the selectivity study). In each LV distribution board, about 10% spare circuit breakers as well as spare spaces to be provided. 7.10. Interface with the IAMCS If the equipment is to be interfaced with the IAMCS, the remote functions requested (alarms, controls, indications, etc.) are to be agreed before the order (see 7.10.3) and are to be carried out via hardwired orserial line interfaces as described hereafter (see 7.10.1 and 7.10.2). In general, hardwired interfaces are to be used, while serial line interface is to be expressly requested and is foreseen by the Ship Specification, as agreed with the Buyer, for the following systems: The following systems — but notlimited to — are to be integrated or interfaced with the IAMCS: Power managementsystem including modeselection system Main engines Thruster system Emergency diesel engine Medium voltage switchboards Low voltage switchboards Pumpsand fans Remote control valves granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} • Temperature controllers • Viscosity controllers • Tank monitoring and remote level gauging • Interface to the “Dynamic Trim Support System” • Management of all auxiliary and electrical systems as listed within the ship specification • Propulsion electric motors, propulsion converters, propulsion transformers and propulsion remote control system • HVAC chillers • Emergency switchboard • Water mist and CO2 system • Incinerators • Stabilizers and steering • UPS and battery charger • Shell and watertight / splash tight door • Lifts • Life boat • Internal IAMCS • HVAC system • Refrigerated rooms • Safety Systems • Navigation system • Fire, watertight and shell doors • Fire detection system • Swimming pools • Mooring • LNG system. The following systems are to be interfaced with the IAMCS via serial lines (the serial lines are to be provided with back-up by hard-wired common alarm): • Diesel Engines Safety and Control System (redundant serial link from each engine) for monitoring functions only, while Hardwired I/Os are to be used for control function and key monitoring functions. • Main electric propulsion system (two redundant serial lines port, two redundant serial lines stbd) for monitoring functions only, while Hardwired I/Os are to be used for control functions and key monitoring functions granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Medium voltage switchboard protection devices (redundantserial link from each MSWB) for monitoring functions only, while Hardwired I/Os are to be used for control functions and key monitoring functions Low voltage ER switchboards,for monitoring functions only (failure of the line is not to cause the failure of the circuit breakers’ relays), while Hardwired I/Os are to be used for control functions and key monitoring functions Valve remote control system (two redundantlinks to be provided,total four) Group Starter Panels and Individual Starter Panels (quantity of redundant serial lines as needed to comply with SRtP) Level gauging system (1 redundantserialline) Flooding detection system (1 redundant serial line, may be shared with Level gauging system) HVAC system (one redundantserial line per each MVZ — total 12) AC chillers (both centrifugal and absorption - 1 serial line per each plant, total 2) Provision compressors system and Refrigerated rooms system (1 serialline) Cabin Fan Coil Control System (CFCCS)(1 serial line per MVZ) Safety Management Control System (SMCS) (1 redundantserial line — total two) Advance Waste Water Treatment System (AWWTS)(1 serial line) Reverse Osmosis Plant (oneline for each plant, total 2) Fuel booster modules (one link for each module,total 2) Stability computers (one redundantline for two computers,total two) Voyagedata recorder (1 redundantserialline) GPS(1 serial line for IAMCS time synchronization) Master clock system (1 serial line for HVAC time based control programs) Integrated Navigation System (1 serialline) Dynamic Trim Support tool (DTS) (1 serial line) Shore connection control system (1 serial line) LNG package automation system (1 redundantseriallink per each plant) Serial lines are to have a refresh time at least consistent with the time constants of the controlled/monitored processes. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 7.10.1. Hardwired The hardwired interface is to be foreseen according to the specification described hereafter: - Outputs for monitoring by IAMCS(signals from the plant control system): e Digital alarm: potential free normally closed (NC) contact; e Digital indication: potential free normally open (NO) contact; e Analogueindication: analogue output signal 4-20mA“passive”from the plant control system (powered at 24V DC by IAMCS) - Inputs for control by IAMCS(signals to the plant control system): e Digital start/stop, open/close and other commandinputs: 24V DC relay triggered by the IAMCS with a 24V DC voltage pulse (24V DC powered by IAMCS) or in alternative with a voltage free pulse contact (24V DC poweredbythe plant control system) (see Note) Analogue control input: analogue input signal 4-20mA “passive” from IAMCS (powered at 24V DCbythe plant control system) All hardwired interface signals are to be isolated from earth. For such purpose the analogue output signals are to be galvanic isolated inside the plant control system cabinet. For shutdownsignals, cable monitoring (detection both open loop and short circuit) with only 2-wire connections is to be provided. Cable failure is not to activate the safety function. Note: in case the plant is to be controlled by IAMCS,a digital output signal “available for control”is to be foreseen by the plant control system for such control. 7.10.2. Serial line signals Signals via serial line (RS232, RS485 or others) or Ethernet with standard protocol (Modbus RTU or TCP, Profibus DP, NMEA0183). Eachserial line from the connected systems must have an hardwired commonalarm as a back-up (activated by anyof the alarmsincludedin theserialline) 7.10.3. List of interface signals The Supplier is to provide his equipment with the input/output signals as required in the “List of interface signals with IAMCS” that is part of the Technical Specification of the plant. The a.m. lists must be agreed before the official purchase orderof the plant, with the target to define the definitive list of the input/output signals. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 7.11. Interface between Supplier system and other external starters Whenthe supplied plantis to be interfaced with an external starter in order to control the relevant auxiliary (pump, fan, etc.), the following interface is to be foreseen: - Outputs by the plant control system to the externalstarter: e Take control digital output: potential free normally open (NO) contact e Start signal digital output: potential free normally open (NO) pulse contact e Stop signal digital output: potential free normally open (NO) pulse contact e Speed control analogue output(if fitted): analogue output signal 4-20mA “active” to the starter (powered at 24V DC bythestarter) - Inputs to the plant control system from the externalstarter: e Runningsignaldigital input: potential free normally open (NO) contact e Speed feedback analogue input(if fitted): analogue input signal 4-20mA “passive” from the starter (powered at 24V DCbythe plant control system) 7.12. Transducers, sensors and transmitters Controllers, control valves, transmitters, solenoid valves, limit switches and proximity switches,pilot lamps, instruments, etc. within the IAMCS scope of supply are to be of a standard type and rangeof sizes. 7.12.1. Temperature switches, temperature sensors and thermometers For temperatures up to 200°C analogue temperature sensorsare to be of the three wire platinum thermo-resistance type (Pt 100) and are to be connected to instruments and monitoring equipmentvia suitable interfaces. For temperatures above 200°C analogue temperature sensors are to be of the thermocouple type (Ni-Cr-Ni type). Also, they are to be connected to instruments and monitoring equipment via suitable interfaces and their signal is to be proportionally linearized in the remote local processstation. Temperature sensorssignals to be transmitted with screened cables. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} The accuracy of platinum thermo-resistance and thermocouples is to be within ±1% and ±3%, respectively. For all sensing elements, suitable wells and pockets are to be provided which are of a type, which permits removal of the sensors with the systems full and under pressure. All wells and pockets are to be welded into suitable bosses and are to be filled with heat conducting compound. Junction boxes for sensors are always to be fitted above the floor plates. Sensors and wiring are to be located above the level of the bottom floor plates. Where location below the floor is unavoidable, the sensors heads and terminal boxes are to be watertight (IP 67). Sensors are to be inserted so that the total length of the sensor is immersed in the pocket or well. Location of sensor well is to be such that it is adequately covered by the medium. The use of thermo-switches is to be confined to safety functions only; exceptions to this are only after written approval by the Buyer, on a case-by-case basis. Local thermometers are to be of the glass liquid filled type, mounted in a protective sleeve and fitted in a thermometer pocket. The construction and material of the pocket is to be compatible with the temperature/pressure rating and material of the piping system in which the pocket is fitted. 7.12.2. Pressure switches and sensors Pressure transmitters are to be of one of the following types: (LVDT) Differential transformer, Membrane Bellows or Bourdon tube. The output from the sensors is to be a linear milliamp signal, with a normal range of 4- 20 mA, exceptions are subject to written approval by the Buyer. The sensor body and diaphragm materials are to be compatible with the process fluid and pressure. Pressure transmitters and pressure switches are to be provided with test pump connections and test cocks. Differential pressure switches or flow switches are to be used where normal pressure switches may be unreliable due to static pressure fluctuations. Differential pressure sensors are to be capable of withstanding full system pressure without loss of accuracy. Pressure sensors are to be capable of withstanding 50% overload without subsequent loss of accuracy. All pressure transmitters, temperature switches, pressure gauges, etc. are to be fitted in groups on the ship’s structure (bulkhead mounting plates), with the exception of those that have to be fitted on the machinery itself. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Main system pressures such as, lubricating oil, cooling water, fuel oil etc. is to be monitored by analogue pressure transducers connected to IAMCS. 7.12.3. Level switches and sensors In general, all level switches except those fitted to the boilers are to be of the float type with magnetic switches. Consideration is to be given to the use of “tuning fork” type level switches for use in difficult applications. Level switches for the boilers are to be according to the boiler Supplier’s standards. Where the level switches are to be mounted on the top or the side of a tank they are to be equipped with testing facilities using a level or test rod. Where the level switches are to be fitted on the top of a tank, then the support pipe or bracket is to be about 200mm above the tank top to permit the removal of the floating element when the tank is partially full. 7.12.4. Tachometers Generally, the transmitters for tachometers are to be of the magnetic type, using a frequency to voltage converter to send a linearly proportional voltage signal to indicators etc. 7.12.5. Flow meters Flow meters must be installed on the equipment / plant where required in the relevant supply specification. 7.12.6. Accuracy of measurement The measurement stability and accuracy of all the instrumentation is to be guaranteed to within about ± 1.5% of full scale value if not specified otherwise in in the relevant supply specification. In both cases, the transducer errors are to be excluded and they are for an ambient temperature between 0°C and 45°C. The range of the gauges and transducers will be selected so that normal operating area does not exceed 67% of full scale reading. By pulsating pressure the normal operating pressure not to exceed 60% of full scale. 7.12.7. Controllers The temperature, pressure and level automatic control functions is to be performed by process control stations integrated in the IAMCS, with the exception of packages with stand-alone control systems. The functions are to include proportional, integral and derivative actions (PID). granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} All controllers shall enable manual/automatic operation of the control valves from any IAMCSoperation station and it shall also be possible to operate the controlled valves manually locally on the valve (manual control hand-wheel). Thecontrolling data and status of control loops including measured value, output value and set point value are to be displayed on IAMCS.Set points and control parameters can be changed via IAMCS. A change-over function for auto/manual control is to be provided. Control loops are to maintain the actual pressure temperature, flow or level to within + 2% of set point during steady conditions and to within + 5% of set point under changing conditions. 7.13. Interface with Emergency Shut Down (ESD) System The Supplier equipment/machinery to be interfaced with the ESD systemis to provide the following remote functions: Dedicated 24 Vdc relay for emergency shutdown activation (energized relay = shut down) is to be provided. A contact of the a.m. relay is to be used to shut down the equipment (e.g. contact may be connected to the emergency stops daisy chain of the system). Since ESD performs the relay coil monitoring, in order to avoid that the line monitoring current provided by the ESD 24Vdc output could energize the relay coil or could keep the relay pulled in, the relay is to be chosen taking into consideration the release voltage (must drop-out voltage) and coil impedance values. Relay type is therefore to be agreed. A free voltage contact for indication of shut down completed (status feedback)is to be provided to the ESD system (closed contact = equipment stopped). The a.m. contact is to provide the “real” status of the equipment (stopped) and therefore it cannot be a contact of the same relay used for the shutdown activation (e.g. it may be an auxiliary contact of the line contactor or an output from a PLC of the equipment). Option: a resistor (value to be defined) may be required to be connected in parallel to the status feedback contact, in order to allow to ESD system to perform the wire break monitoring. Available terminals are to be taken into consideration for resistor connection. The manufacturer must contact SY in due time (and anyway not later than the basic design stage) to check if the monitoring resistanceis to be installed granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} yt Below picture showsthe described principles. 24Vdc from ESD {stop command) Emergency stops chain ree Lt ee Le 3 + + —— aux contact free voltage contact to ESD free voltage contact to ESD (feedback) (feedback) (closed contact=user stopped) (closed contact=user stopped) The equipment/machinery that, in principle, are to be connected to the ESD system with the above mentionedinterface are the following: Scrubbers Vacuum sewage system; Grey water system; Evaporators system; Reverse Osmosis Bilge water separators system; Boilers; Incinerators system; Sludgepurifier; FO/LO purifiers and pumps; Booster fuel module; Sea water pumps(overboard dischargein wayoflifeboats); Emergencydiesel generators. In principle, following systems havetheir own specific interface with ESD system, which shall be described case-by-casein their own Technical Specification: HingedFire door Sliding door Side door Watertight Doors Lift GSP/ISP granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} • Low Location Lighting • Galley Hood Control Cabinet • Hood Dampers • Rolling Shutter 7.13.1. ESD Interface with fire and shut-off dampers The status of fire and shut-off damper shall be taken by the ESD system (status taken from internal limit switch). The ESD shall be connected to the damper panel (or GSP or ISP if outside ACS). 7.14. Electrical instruments All instruments shall be of the same standard design, exceptions to be agreed with SY. All meters are to be to DIN Standard. The analogue meters fitted on switchboards, instrument boards and control boards are to be of the moving coil type, flush mounted, square flange white dials and black numerals. The analogue Instruments fitted on switchboards, instrument boards and control boards are to be of flush type with 96 x 96 mm flange. In case of installation constraints, the installation of 72x72 analogue instruments to be discussed case-by-case Analogue instruments indicating through 270 degrees are preferred, i.e. long scale. Each instrument is to be clearly identified in accordance with the requirements of 6.5. The upper limit of the scale of the voltmeters to be approximately 120% of the rated voltage. On analogue voltmeters, rated voltage to be indicated by a red line. The upper limit of the scale of the ammeters to be approximately 130% of the rated current. On analogue ammeters, red marks are to be provided at rated values for transformer and users, and at the value corresponding to the feeder cable carrying capacity for power and lighting panel boards. Watt meters and ammeters for use with alternators must be able to indicate 15% of full load reverse power, as well as 130% full load with red line at full load. Scale deflection on other analogue meters to be according to Classification Society Rules requirements. The accuracy of the analogue instruments is to be 1.5% at full scale deflection. Current transformers shall be Class 1 for instrumentation duty and 5P for protection duty; voltage transformers for instrumentation shall be Class index 1.5 and 1 for protection duty granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 7.15. PLC Program and Documentation PLCs of main systems (where provided) are to be delivered with program back-ups and documentation of software, diagnostics, interface descriptions, set-points and parameters andto include interface devices (laptop/programming devices) according to manufacturer recommendations. 7.16. Standardization of components The Suppliers are to supply the various componentsfollowing the principle of limiting the spare parts holding, services and maintenance. 7.17. Spare parts Detailed spare partslist is to be provided asfollows: RecommendedbyClassification Societies (spare parts included in the Scope of Supply) Recommended by Manufacturer. for two years operation. Recommended by Manufacturer. for five years operation. Special tools, where necessary, to be included in the scope of supply 7.18. Supervision and tests Test Inspections and Certificates are to be as specified on document: e General Requirements for Supply granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 8. Cybersecurity risk mitigation measures The supplier is to support the Builder and the Owner in implementing the Cyber security prevention strategies and risk mitigation measures for its scope of supply The supplier is also to support the Builder and the Owner in all the analysis required by the interaction of the system to the other connected systems. Cybersecurity risk mitigation measures shall be identified, implemented and verified for any system or subsystem that: • Involves safety and/or security • Require or provide ship-to-shore/shore-to-ship communication • Is interfaced to ship digital communication network (SDCN) • Require periodical external data updates • Is subject to periodical software/firmware updates The design and system architecture of the systems is to respect and support the requirements of Cyber Security prevention. The IEC62443 is to be used as a guideline for assessment, implementation and verification. The supplier is to provide an asset inventory of all involved components as a basis for the cyber security assessment. The supplier is also to support the Builder and the Owner for what concerns the activities of verification and penetration test of the final configuration (executed by the Owner after delivery of the vessel) and is to provide the countermeasures to any findings related to its scope. Hereinafter a set of basic guidelines are described to minimize the cyber security risk. However, the compliance to these guidelines does not exempt the supplier from supporting the Builder and Owner in the above described activities. All external interfaces, direct or via SDCN, are to be protected by dedicated hardware or virtualized software firewalls provided in the scope of the system supplier; alternative solutions to firewalls providing same security level can be proposed at Builder’s and Owner’s approval. System and network architecture is to be designed with special attention to network segregation and network partition to prevent any unintended network communication between security boundaries. Where reasonable the preference for interfaces to external plants connected to the systems is for point-to-point serial interfaces. At the end of sea trials, all system servers, clients and other components are to be provided with the latest released operating systems and related security patches; systems which need type approval are to be provided with the latest type-approved granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} version. No obsolete operating systems are to be used. Builder to document the used software versions, operating systems and application software. Unused ports on any network components are to be blocked and unintentional use is to be prevented. Specific dedicated user accounts shall be defined for all the systems with the proper authorization and user levels; generic/admin users shall be removed. Document and file transfer in and out of the systems is to be provided with a dedicated and protected web server or similar. The system access via removable storage devices (like USB stick or others) is to be prevented on all computers and only available for maintenance purposes. Either antivirus prevention or “executable white listing” is to be provided throughout all the systems. User access rights to the systems are to be based on different individual accounts with dedicated user rights for monitoring, operating and system administration. Servers and client workstations are to be provided with customized operating system setups excluding and preventing any not required OS functionality and adapted to the specific requirements of the related system and cyber security. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 9. Drawings and documents The documentation is to be supplied in accordance to the requirement of the SY document: e General Requirements for Supply In addition to what above, the scope of supply includes at least the documentsindicated in the following table within the indicated time schedule. All other drawings necessary for the complete definition and understanding of the system/equipmentare included in the scope of supply. One single drawing can contain more drawingsof the table, anywayall the information required must be clearly indicated. All the documents areto fulfil the following requirements: Notes: to be developedusing IEC electrical design standard symbols; to be in compliance with ISO 9000 quality managementstandards; written and organised in orderto be easily readable; to have a summary; all revisions are to have modifications clearly indicated (e.g. with clouding); as far as practicable, ISO A4 and A3 format are to be used. E-Mail limit is 1,5 MB for each e-mail columns“with offer”, “for working” and “as built” contains the numberof copies to be submitted “for working” documentsis not a preliminary document preliminary documentswill be notofficially considered an “as built” document is a document describing the system asinstalled onboard at the delivery of the ship. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Cabin singlecore cables 14.5. Enclosure "C1" — Allowed cable types and not fire resistant fire resistant not not Type leve armoured armoured armoured armoured Colour Rated voltage Powercables HF- not fire resistant fire resistant not not Colour and leve armoured armoured armoured armoured not oegy SINGLE PO defined core; 125| iz P-FR- Rated Type voltage yp P PA WSR PA-FR- WSR green KorN SINGLE|| phase {_2x4(‘) || ee 3X10 3X10 3x16 3x16 3x25 3x16 3x25 3x16 3x25 3x50 3x50 3x50 3x70 3x50 3x70 3x95 3x95 3x95 a3xts| 8x15 3x1,5 3x6 3x6 3x6 3x6 THREE phases pigek oer 3x127 3x127 3x127 3x127 4x6 4x6 4x6 4x16 4x50 4x50 4x50 4x70 4x70 4x70 4x95 4x95 4x95 4x127 4x127 4x127 SINGLE 3G1,5 3G1,5 3G1,5 3G1,5 3G2,5 3G2,5 3G6 green KorN phase with 3G2,5 3G2,5 EARTH THREE phases green KorN 4G1,5 4G1,5 4G2,5 4G2,5 with EARTH o (*) dedicated for power-line communication —————— 4G16 4G16 a granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} Colour Rated voltage Type Multicore cables HF not fire resistant fire resistant not armoured armoured not armoured armoured M MA M-FR- WSR MA-FR- WSR orange N 0.6/1 kV 1 mm 2 4x1 4x1 4x1 4x1 7x1 7x1 7x1 7x1 10x1 10x1 10x1 10x1 14x1 19x1 19x1 19x1 19x1 30x1 30x1 30x1 30x1 1,5 mm 2 4x1,5 4x1,5 4x1,5 4x1,5 7x1,5 7x1,5 7x1,5 10x1,5 10x1,5 10x1,5 19x1,5 19x1,5 19x1,5 24x1,5 24x1,5 30x1,5 2,5 mm 2 4x2,5 4x2,5 4x2,5 4x2,5 Colour Rated voltage Type Twisted cables HF- not fire resistant collective screen individual & collective screen not armoured armoured not armoured armoured TXCS TXCSA TXISCS TXISCSA orange N 60 V 0,5 mm 2 1x2x0,5 1x2x0,5 2x2x0,5 4x2x0,5 4x2x0,5 7x2x0,5 14x2x0,5 14x2x0,5 30x2x0,5 250 V 0,75 mm 2 1x2x0,75 1x2x0,75 2x2x0,75 2x2x0,75 2x2x0,75 2x2x0,75 4x2x0,75 4x2x0,75 4x2x0,75 4x2x0,75 7x2x0,75 7x2x0,75 10x2x0,75 10x2x0,75 10x2x0,75 10x2x0,75 14x2x0,75 14x2x0,75 14x2x0,75 19x2x0,75 19x2x0,75 19x2x0,75 19x2x0,75 30x2x0,75 30x2x0,75 30x2x0,75 1,5 mm 2 1x2x1,5 1x2x1,5 2x2x1,5 2x2x1,5 2x2x1,5 2x2x1,5 4x2x1,5 4x2x1,5 4x2x1,5 4x2x1,5 10x2x1,5 10x2x1,5 10x2x1,5 10x2x1,5 14x2x1,5 14x2x1,5 14x2x1,5 19x2x1,5 19x2x1,5 30x2x1,5 30x2x1,5 30x2x1,5 granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 0.00