Application This product is suitable for rated voltage 0.6 / 1KV and below plastic insulated power cables, all kinds of places 450 / 750V and below electrical equipment used wire and cable, especially for a refractory requirements of the various transmission and distribution, control, and fire alarm systems and other lines. The use of features 1, conductor Working temperature: XLPE insulated 90 ℃; PVC insulated :( Normal) 70 ℃, (high temperature) 105 ℃ 2, when a short circuit (5s) conductor to allow the maximum temperature: XLPE insulation 250 ℃; PVC insulation: 160 ℃ product performance 1, fire-resistant wire and cable conductor comply with GB / T3956's. 2, fire-resistant insulation layer: Depending fire resistance rating were selected synthetic mica and gold mica. A fire-resistant cables, fire-resistant layer synthetic mica, its fire resistance rating of 1000-1200 ℃; Class B fire-resistant cables, fire-resistant layer is made of gold mica, its fire resistance rating of 850-950 ℃. 3, the same thickness of the plastic insulation fire-resistant wire and cable insulation thickness corresponding common wire and cable. 4, fire-resistant wire and cable diameter: by increasing the fire-resistant insulation, fire-resistant wire and cable outer diameter of a slight increase over the corresponding common wire and cable. 5, fire-resistant wire and cable ampacity: carrying capacity of fire-resistant wire and cable carrying capacity should not be less than the corresponding common wire and cable. 6, fire-resistant characteristics: A fire-resistant wire and cable should adopt a Class A fire resistance test GB / T19666 prescribed in the flame temperature 750-800 ℃, applied 1000V voltage, burning 180 minutes, or when the flame temperature is 1000 ℃, applied voltage 1000V burning 90 minutes, 3A fuse link continuously. Class B fire-resistant wire and cable should be adopted GB / T19666 prescribed class B fire resistance test, can lower flame temperature 750-800 ℃ in applied voltage 1000V, burning 90 minutes, 3A fuse link continues. Model and name Model Rated Voltage name NH-YJV 0.6 / 1KV XLPE insulated PVC jacket Class B fire-resistant power cable NH-YJV22 XLPE insulated steel tape armored PVC sheathed B fire-resistant power cable NH-YJV32 XLPE insulated steel wire armored PVC jacket Type B refractory power cable NH-YJV42 XLPE insulated thick steel wire armored PVC jacket Type B refractory power cable NH-VV Copper conductor PVC insulated Class B fire-resistant power cable NH-VV22 copper core PVC insulated steel tape armored PVC jacket Type B refractory power cable NH-VV32 copper core of poly chloride insulated steel wire armored PVC jacket Type B refractory power cable NH-VV42 copper core PVC insulated thick steel wire armored PVC jacket Type B refractory power cable NH-KVV 450 / 750V copper core PVC vinyl-insulated PVC jacket Type B refractory control cable NH-KVV22 core PVC insulated steel tape armored PVC jacket Type B refractory control cable NH-KVVP2 core PVC insulated copper tape shielded PVC Class B fire-resistant control cable sheath NH-KVVP2-22 core PVC insulated copper tape shield steel tape armored PVC jacket Type B refractory control cable NH-KVVRP core PVC insulated copper tape shielded PVC Class B fire-resistant sheath control cable NH-KVVR core PVC insulated PVC jacket Type B refractory control cable NH-KVV32 core PVC insulated steel wire armored PVC jacket Type B refractory control cable NH-BV 450 / 750V copper core PVC insulation class B refractory fixed laying cable NH-BVV 300 / 500V copper core PVC insulated and sheathed fire resistance class B fixed laying copper conductor cable NH-BVVB poly vinyl insulated PVC jacket Type B refractory fixed laying flat cable NH-BVR PVC insulated copper class B refractory fixed laying flexible cable