Halogen Free Low Smoke PVC Insulated Electrical Cable

For normal use of halogen free low-smoke cable, the permit-ted longtime operating temp of conductor is 90° C; For short circuit (the longest time is 5S). The temp of conductor max should not exceed 250° C.For normal use of low-halogen low-smoke cable, the permit-ted longtime operating temp of conductor should not exceed 70° C; For short circuit (the longest time is 5s) temp of conduc-tor max should not exceed 160° C.The lowest temp for the laying of cables without sheath should not shorter than 10times of outer diam. For cable without sheath should not shorter than 10times of outer diam. For cable without sheath should not shorter than 10 times of outer diam. For cables with sheath should not shorter than 12 times of outer diam.Available on customer request the appropriate fire-resistant cables.For 4-core, it can ben divided into four equal cross sections or three-big and one-small structure. For 5-core. It can be divided into three-big and two-small or four-big and one-small structure. The color is up to the color codes the user provides.If converted into the resistance value at 20° C, the insulation resistance of finished cable should not be lower than 36.7MΩ . Km. Finished able should be abe to bear a dieletric pressure test of a A. C50Hz 3.5kV test voltage, and it should keep unbroken down for a stable lasting test time of 5min.For the burning smoke intensity test of halogen free low-smoke flame retarding cables. The lowest transparency should not be lower than 60%; The liberation amount of HCl gas should not exceed 5 mg/g; pH value should not be lower than 4.3, the conductivity should not exceed 10μ S/mm.For the burning smoke intensity test of low-halogen low-halogen low-smoke flame retarding cables, the lowest transparency should not be lower than 35%; The liberation amount of HCl gas should not exceed 100mg/g.