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BFOU (I) S3/S7 250V Fire Resistant
BFOU instrumentation cable, mud resistant to NEK606
Industries: Marine & Offshore O&G OEM
Attributes: Armoured Sheathed Flame Retardant Fire Resistant Low Smoke


Conductors: Tinned annealed stranded copper 

Core identification: Pairs: Black & blue Triples: Black, blue & Brown 

Insulation: MGT (Mica glass tape), halogen free EPR (Ethylene Propylene Rubber),

Screen: ICM (individual copper mylar) and a TCWB (Tinned copper wire braid)

Sheath/Jacket: Type: SHF, thermoset dual compound, halogen free and mud resistant

Sheath colours: Grey as standard or Blue for IS 

Voltage: 250v

Operating temperature: Maximum 90°C, minimium bending -40°C


IEC60092-353: electrical installation in ships, power cables
NEK606: cables for offshore installation halogen-free or mud-resistant
IEC60092.375 shipboard telecommunications cable
IEC60331: fire resistant
IEC60332: flame retardant
IEC61031-1.2: smoke denisty
IEC60754-1, halogen free properties
IEC60228: electical conductor

Product Table

Classification Information

Classification Code Construction Detail
Conductor Stranded tinned annealed copper wires as per IEC 60228, Class 2
Insulation B -Halogen free EPR compound as per IEC 60092-351
- Mica/glass tape
Twisting Two/Three Insulated cores shall be twisted together to form a pair/triad
Individual screen (i) - Screened by copper or aluminium backed polyester tape with tinned
- Each pair/triad is wrapped with polyester tape to prevent electrical contact with adjacent pairs/triads
Inner covering F Flame retardant halogen free thermoset compound
Cabling - Screened pairs/triads shall be cabled
- Flame retardant & non-hygroscopic fillers may be used
-Suitable tape(s) may be applied on the cabled core
Armour O (B,C) - Braid of tinned annealed copper wire(O) / bronze wire(B) /galvanized steel wire(C)
- Coverage density : Min. 90%
-A suitable separator tape(s) may be applied under/over the armour
Sheath U - SHF2 or SHF MUD as per IEC 60092-359
- Outer sheath color : Grey or Blue for IS

Core Identification

No. of Cores Without Earth Core With Earth Core
Pair Black, Light blue
Triads Black, Light blue, Brown
Multi Pairs/Triads Pairs/triads are identified by lapping of the pair/triad numbered tape or by the pair/ triad number print directly on the each cores.