Two, the implementation of standards
The products in accordance with the GB/T 12706-2008 design and manufacture.
Flame retardant XLPE insulated power cable complies with the standard GB/T19666-2005 "flame retardant and fire resistant wires and cable
The provisions are ".
Low smoke and low halogen flame retardant XLPE insulated power cablemanufacturing enterprises in accordance with the standards, which accords with the flame retardant properties
GB/T 19666-2005 regulations and requirements.
Low smoke halogen-free flame retardant XLPE insulated power cablemanufacturing enterprises in accordance with the standards, which accords with the flame retardant properties
GB/T 19666-2005 regulations and requirements.
Three, use
This product is suitable for 35kV and below power transmission and distribution systems, for transmission and distribution of electric energy use.Widely used in electric power,
Construction, mining, metallurgy, petrochemical, transportation department.
Four, the use of the characteristics and technical performance
1, rated voltage of U0/U is divided into 3.6/6kV, 6/6kV, 6/10kV, 8.7/10kV,8.7/15kV, 12/20kV,
18/30kV, 21/35kV, 26/35kV;
The maximum operating temperature of conductor 2, long-term allowed is 90 DEG C, short circuit (the longest lasting less than 5 seconds), electric
The highest temperature of cable conductor can not exceed 250 DEG c;
3, conductor DC resistance in accordance with the provisions of GB/T 3956;
4, the laying of the environment temperature is not lower than 0 DEG C, is lower than 0 DEG C should first preheating. The minimum bending radius is no less than:
Core cable unarmored 20D, armoured 15D, three core cable armoured 15D,armoured 12D. D cable real
Diameter;
5, not drop restrictions on the laying of cables;
6, power frequency withstand voltage test: 3.5UO/5min breakdown;
7, flame retardant cable can bundle combustion test subjected to GB/T19666-2005 regulations;
8, low smoke and low halogen cable can withstand GB/T19666-2005 specifiedbundles of combustion test, precipitation in the gas combustion
HCL content should be less than or equal to 100mg/g.
9, low smoke non bundle combustion test, combustion gases released fromwater soluble halogen cable can withstand GB/T19666-2005 regulations
Solution of pH values greater than or equal to 4.3, the conductivity is less than or equal to 10 mu s/mm.
Five, type and name