Fire-resistant power cable

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Fire-resistant power cable is suitable for the required cable under fire in the fire can still maint…

One, the cable's brief introduction:
Fire-resistant power cableIs suitable for the required cables under fire in the fire can still maintain a certain time to continue to run fixed installation, rated voltage 0.6/1 kv power for power transmission and distribution lines.This product has high fireproof performance, through direct combustion flame, in a certain period of time is not short circuit and short circuit fault, therefore, when the fire broke out, is beneficial to reduce the loss, low smoke zero halogen type cable belong to environmental protection cable, especially suitable for fire requires high power, large buildings, railways, shipping, etc.
Second, the product standards:
Fire-resistant power cable according to manufacturing and refractory properties conform to IEC331 EC502-1983 was 120-1970.
Three, fire-resistant power cable using features:
1, ac rated voltage U0 / U including 0.6/1 kv.
2, the highest working temperature for a long time: flame retardant PVC insulated and sheathed 70 ℃ and 105 ℃.
Fluorine plastic insulation and sheath 200 ℃ and 260 ℃;
Cross-linked polyethylene insulation 90 ℃;
Low smoke zero halogen flame retardant polyolefin 70 ℃;
Low smoke zero halogen flame retardant crosslinked polyolefin 90 ℃ and 120 ℃;
3, the lowest temperature: flame retardant PVC sheathed: fixed installation to 40 ℃, the fixed installation - 15 ℃;
Fluorine plastic insulation and sheath: fixed installation - 60 ℃;The fixed installation - 20 ℃.
4, refractory characteristics:
Comply with the regulations of IEC331 flame temperature 750 ℃, the combustion time is 3 h, 12 h, additional cooling time rated voltage, the additional 3 a current;
Accord with GB12666.6 - class A flame temperature 950-1000 ℃, 90 min burning time, additional triple-a rated voltage current;
Accord with GB12666.6-750 - B type flame temperature 800 ℃, 90 min burning time, additional triple-a rated voltage current.
5, cable temperature installation not below 0 ℃.
6, allowed bending radius: recommend laying the armored cable is not less than 6 times of cable diameter.
7, armored cable should not less than 12 times the cable diameter.
8, fluorine plastic cable insulation and sheath material should not be less than 8 times of cable diameter.
Four, fire-resistant power cable specifications said:
Example 1-0. 6 / KV copper core PVC insulated and sheathed, 3 core 240 was added 2 core 120 was fire-resistant power cable is expressed as: NH - kv3 VV0.6/1 x 240 + 2 x 120;
Example 2-0. 6/1 kv copper fluoride plastic insulation tape armored fluorine plastic sheath, 4 core 150 was fire-resistant power cable is expressed as: NH - kv4 FF220.6/1 x 150.
Five, the length of delivery:
Cable generally should not less than 100 meters, allows for more than 20 meters short delivery of the goods, and quantity does not exceed 10% of the total length of delivery;If you have any special requirements of supply and demand both sides can be negotiated separately.