1. Flame-retardant and fire-resistant flexible cables for communication power supply
This product is suitable for transmission and distribution lines with a rated voltage U0/U of 0.6/1kV and below.
Flame-retardant cables are suitable for the power connection of power stations, communication bureaus (stations), communication equipment rooms, high-rise buildings, subways, tunnels, and petrochemical enterprises with high cable laying density. They can also be used as mobile cables. use.
Halogen-free low-smoke fire-resistant cables are suitable for places that have special requirements for cable flame retardancy, smoke density, toxicity index, etc., such as nuclear power plants, subways, tunnels, high-rise buildings, communication bureaus (stations), communication equipment rooms, etc. Safety and fire-fighting related places.
2. Flame-retardant and fire-resistant flexible cables for communication power supply Model and name:
ZA-RV copper core flame-retardant PVC insulated flexible cable
ZA-RVV Copper core flame-retardant PVC insulated PVC sheathed flexible cable
ZA-RVV22 Copper core flame-retardant PVC insulated steel tape armored PVC sheathed flexible cable
WDNA-RY copper core fire-resistant low-smoke halogen-free polyolefin insulated flexible cable
WDNA-RYY copper core fire-resistant low-smoke halogen-free polyolefin insulated low-smoke halogen-free polyolefin sheathed flexible cable
WDNA-RYY23 copper core fire-resistant low-smoke halogen-free polyolefin insulated steel tape armored low-smoke halogen-free polyolefin sheathed flexible cable
3. Flame-retardant and fire-resistant flexible cables for communication power supply standards
YD/T1173-2010 Flame-retardant and fire-resistant flexible cable for communication power supply
4. Use characteristics of flame-retardant and fire-resistant flexible cables for communication power supply
1. The rated voltage U0/U is 450/750V, 0.6/1kV
2. The rated temperature of the cable conductor is 70℃
3. When short-circuit (duration does not exceed 5s), the conductor temperature does not exceed 160℃
4. The temperature of the cable laying environment should not be lower than 0℃, bending radius: non-armoured cable: flame-retardant type is 6 times the outer diameter of the cable, fire-resistant type is 12 times the outer diameter of the cable; armored cable: outside the cable 20 times the diameter
5. Cable laying methods include overhead, pipeline, cable trench, buried, etc.
