Low smoke halogen free cable LSZH

Low smoke halogen free

Low-smoke free-halogen flame-retardancy polyolefin insulated electric Wire

 Using place:the high-rise civil building (except super high-rise uptown) and underground civil building(with structural area).

Specification:

1. The maximum temperature of the normal operating cable conductor or short circuit (should not persist for 5seconds).

2.70oC for low-smoke low-halogen PVC insulated type as normal operation,and not more than 160oC as short circuit.

90oC XLPE insulated type' 80oC for thermoplastic low-smoke low-halogen polyolefin insulated type,and not more than 250oC as short circuit.

No.	Testing item	Standard requirement(free-haloegn)	Standard requirement(low-haloegn)
1	Single vertical combustion testing for wires and cables:1)the distance from the skirt of upper bracket to charcoal part2)the distance from combustion prolongation to the skirt of upper bracket	≥50mm ≤540mm	≥50mm ≤540mm
2	Cable colligated combustion testing:the height of charcoal part	≤2.5m	≤2.5m
3	Fire resistance testing	As testing,bear rated voltage and the 2A fuse will not be melted	As testing,bear rated voltage and the 2A fuse will not be melted
4	PH value	≥4.3	≥2.5
5	Conductance	≤10μs/mm	no requirement
6	Smoke density testing:minimum light-pass tate	≥60%	≥30%

Low smoke halogen free cable LSZH