First, the implementation of standards
This product is designed and manufactured according to GB/T12706-2008.
The flame-retardant power cable is manufactured according to the enterprise standard, and the flame-retardant characteristics meet the requirements of GB/T 18380-2008.
The fire-resistant power cable is manufactured according to the enterprise standard, and the fire-resistance characteristics meet the requirements of GB/T 19666-2005.
Second, use
This product is suitable for use in AC rated voltage 0.6/ kV for transmission and distribution. Flame-retardant power cables are suitable for applications where flame retardancy is required. Fire-resistant power cables are suitable for densely populated areas such as high-rise buildings and large shopping malls.
Third, the use of characteristics
1 cable conductors allow long-term operating temperature not to exceed 70 ° C.
In the case of a short circuit (maximum duration not exceeding 5 seconds), the maximum temperature of the cable conductor does not exceed 60 ° C;
2 The ambient temperature when laying the cable should not be lower than 0 °C, and should be preheated when it is lower than 0 °C.
The minimum bending radius of the multi-core cable with armor shall not be less than 2 times the outer diameter of the cable, and the armor shall not be less than 5 times the outer diameter of the cable.
3 conductor DC resistance should meet the requirements of GB/T3956-2008.
4 power frequency withstand voltage test: 5Uo + 2kV / 5min does not breakdown.
5 flame retardant properties:
Flame-retardant cables can withstand the bundled burning test specified in GB/T 18380.3-2008.
The low-smoke low-halogen flame-retardant cable can withstand the bundle burning test specified in GB/T 18380.3-2008, and the smoke concentration during combustion meets the requirements of GB/T 17651-1 998. The HCL content in the combustion evolved gas should be ≤100 mg/g.
The low-smoke halogen-free flame-retardant cable can withstand the bundle burning test specified in GB/T 18380.3-2008, and the smoke concentration during combustion meets the requirements of GB/T 17651-1998. The pH value of the combustion evolved gas aqueous solution is ≥ 4.3, conductivity ≦10μs/mm.
The fire resistant cable can withstand the fire test specified in GB/T 19666-2005.