Flame-retardant power cable

1, finished wire should be able to withstand 5 cycles of vertical combustion test, rather than passing the flame, the test sample continued burning for less than 1min, should be finished cable into the cable bundle into a combustion test, test cables burning Coke, or to reach the affected part of a high flame should be no more than point more than 2.5m.
2, wire & cable should withstand low temperatures of -15 winding test or low-temperature impact test. After the test surface should be no visible cracks eyesight.
3, 70 finished wire insulation volume resistivity should be greater than 1 010? cm. Power cable products are able to withstand 3.5kv voltage, 5min (minutes) is not able to withstand the breakdown of finished 2.5kv voltage cable, 5min (minutes) does not control the breakdown products are able to withstand 3KV voltage cable, 5min (minutes) does not breakdown.
4, flame-retardant wire and cable for high fire-retardant PVC and the cross-linked polyethylene plastic, oxygen index greater than 30.
5, with the exception of the above features, similar to its other properties the same general type cable.

Standard model ZR-BV, ZR-BYJ, ZR-BVVB, ZR-BVR, ZR-BVV, ZR-RVV, ZR-RV, ZR-RVS, ZR-KVV, ZR-KYJV, ZR-KVV22, ZR - KYJV22, ZR-KVVP2, ZR-VV, ZR-VV22, ZR-YJV, ZR-YJV22