Marine NR/SBR Insulated Power Cables

Marine Wires

Model expression and example of marine cable 1) Model description and expression rules Category & application Conductor Insulation Inner sheath Outer sheah Characteristic type Code of combustion property definition Armor code Outer sheath code C- Variety of marine cable series CB- Category of marine wire T- Copper conductor (generally, omitted) E- Ethylene propylene rubber J-XLPE S-Silicon rubber X-Natural/styrene-butadiene rubber V-PVC V-PVC F- Chloroprene rubber H- Chlorosulfonated polyethylene 2-Double steel tape 3-Thin steel wire 8-Copper wire braid 9-Steel wire braid 2-PVC 3-PE R-Flexible structure M-Watertight type D-Single combustion S-Bunch combustion N-Fireproof (single combustion) A-Smoke, acid, toxin B-Low smoke, low acid, low toxin C-No halogen, low smoke, low toxin   Cable for Marine (excluding oil tank) low voltage power system and selection rules of operation current carrying capacity 1) Selection of cable insulation: The rated voltage of cable should not be less than nominal voltage of cable circuit, the cable for high-inductance circuit of contactor-operated winch 　The permissible continuous working temperature of cable insulating material is higher than 10℃ of possible max environ ment temperature in the cable layout location at least. The name, permissible continuous working temperature and short-circuit temperature of insulating material are shown as table . Name of insulating material Max permissible continuous working temperature of conductor ℃ Conductor short-circuit temperature ℃ Thermal solid Natural/styrene-butadiene rubber 70 220 Ethylene propylene rubber 85 250 XLPE 85 250 Silicon rubber 95 - Thermal plastomer PVC(generally) 60 150 PVC(Hot resistance 75 160 Other material Mineral 95 - Note: 1. The temperature of conductor is the sum of environment temperature and temperature rise of load. The max permissible continuous working temperature of conductor is that of the insulating material. 2. NR/SBR insulated cable is used for non-classification ship.