Name: NH-KVV22 Copper core PVC insulated PVC sheathed steel tape armored fire resistant control cable
Model：NH-KVV22 40*1.5
Voltage: 0.45/0.75KV
Fire-resistant cables
Refers to the flame burning situation can be maintained for a certain period of time safe operation of the cable. China's national standard GB12666.6 (and other IEC331) will be fire-resistant test is divided into A, B two levels, A-class flame temperature 950 ~ 1000 ℃, sustained fire time of 90 min, B-class flame temperature 750 ~ 800 ℃, sustained fire time of 90 min, the entire test period, the specimen should withstand the rated voltage value of the product regulations. Fire-resistant cables are widely used in high-rise buildings, underground railways, underground streets, large power stations and important industrial and mining enterprises and other places related to fire safety and firefighting and life-saving, such as firefighting equipment and emergency guide lights and other emergency facilities of the power supply lines and control lines.
1. AC rated voltage:
U. / U (V series: 600/1000V, K series: 450/750V, B series: 450/750V).
2、Maximum long-term working temperature of the cable
(1), alkene-resistant polyfluoroethylene insulation and sheath: 70 ℃ and 105 ℃ two; cross-linked polyethylene insulation: 90 ℃;
(2), fluorine plastic insulation and sheath: 220 ℃ and 260 ℃ two; fluorine plastic insulation and 105 ℃ flame retardant polyfluoroethylene sheath: 90 ℃ and 125 ℃ two.
(3), low-halogen, low-smoke flame-retardant PVC insulation and sheath: 70 ℃; halogen-free, low-smoke flame-retardant polyolefin insulation and sheath: 90 ℃ and 125 ℃ two.
3、Minimum ambient temperature:
(1) Flame retardant PVC insulation and sheath: fixed laying -40℃; non-fixed laying -15℃;
(2), fluorine plastic insulation and sheath: fixed laying -60 ℃; non-fixed laying -20 ℃;
4, the cable safety laying temperature should not be less than 0 ℃
5, laying the recommended permissible bending radius:
Non-armored, braided shielded cable should be not less than 6 times the outer diameter of the cable; steel tape armored cable should be not less than 12 times the outer diameter of the cable; fluorine plastic insulation and sheath material cable should be not less than 8 times the outer diameter of the cable.
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NH-KYJVP2 Copper-core cross-linked polyethylene insulated PVC sheathed copper tape shielded control cable
NH-KYJV22 Copper-core cross-linked polyethylene insulated PVC sheathed steel tape armored fire-resistant control cable
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NH-KYJVRP: Copper-core cross-linked polyethylene insulated PVC sheathed copper wire braided shielded fire-resistant flexible control cable
NH-KVV: Copper core PVC insulated PVC sheathed fire resistant control cable
NH-KVVP: Copper core PVC insulated PVC sheathed copper wire braided shielded fire-resistant control cable
NH-KVVP2 : Copper core PVC insulated PVC sheathed copper tape shielded fireproof control cable
NH-KVV22: copper core PVC insulated PVC sheathed steel tape armored fire-resistant control cable
NH-KVVR: Copper core PVC insulated PVC sheathed soft fire-resistant control cable
NH-KVVRP: Copper core PVC insulated PVC sheathed copper wire braided shielded soft fireproof control cable
