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Design guideline : BS 6883
· Material properties : BS 7655-1.2 (Insulation, GP4), BS 7655-2.6 (Sheath, SW4)
· Flame retardant : IEC 60332-3, Cate. 'A'
· Halogen free properties : IEC 60754-1
· Low smoke properties : IEC 61034-1/2
-Construction
· Conductor : Circular tinned stranded copper as per BS 6360, class2
· Insulation : Ethylene Propylene Rubber (EPR) as per BS 7655-1.2
· Pair(Triple) twisting : Two(Three) cores twisted together with suitable lay length
· Cabling : with non-hygroscopic filler (if necessary)
· Collective screen : Wrapped by aluminium backed polyester tape with tinned copper drain wire
· Inner sheath : Halogen-free thermoset compound as per BS 7655-2.6, SW4
· Amour : Galvanized steel wires braid as per BS 6883
· Outer sheath : Halogen-free thermoset compound as per BS 7655-2.6, SW4
- Core identification
· Insulation
- Numbering on Black-White cores
· Outer sheath
- Non IS → Grey
- IS → Light Blue
· The any other color may be applicable when purchaser required
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