These cables are flame retardant, low smoke and halogen free, used for indoor telecommunication.
Standards
IEC 60092-359
IEC 60332-1
IEC 60332-3-22
IEC 60754-1,2
IEC 61034-1,2
NEK 606:2004
VG 95218 part 29
Construction
Conductors: Solid tinned copper, 0.5mm. Insulation: Halogen-free thermoplastic compound PE. Twinning: Colour coded cores twisted together. Pairs are cross-stranded to finished cable or 10 pair units. The units are stranded to 20 - 30 - 50 pair cables. 2 pair is stranded as a star quad. Filler: Water blocking fillers, if required. Wrapping: Polyester tape. Collective Shielding: The cable core is screened by copper backed polyester tape in contact with a 0.5mm solid tinned drain wire. Water Blocking Elements: Water blocking tape and strings for providing longitudinal water tightness. Inner sheath: Halogen-free thermoplastic compound, type SHF1, coloured grey. Outer Sheath: Polyurethane for providing transversal water tightness, PE is optional,but can not meet low smoke standard.