First, use:

Applicable to the line with AC rated voltage of 0.6/1KV, which can be used for transmission and distribution. The flame-retardant power cable is suitable for occasions requiring flame-retardant. The fire-resistant power cable is suitable for densely populated areas such as high-rise buildings and large shopping malls.

Second, the use of features:

(1) The long-term allowable operating temperature of the cable conductor does not exceed 70 ° C

       In the event of a short circuit (maximum duration not exceeding 5 seconds), the maximum temperature of the conductor cable does not exceed 160 °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.

       Multi-core cable has a minimum bending radius of not less than 12 times the outer diameter of the cable, and no-clamping should be no less than 15 times the outer diameter of the cable.

(3) Conductor DC resistance should meet the requirements of GB/T3956-1997

(4) Power frequency withstand voltage test: 5U+2KV/5min does not breakdown

(5) Flame retardant properties:

The flame-retardant cable can withstand the bundle burning test specified in GB/T18380.3-2001.

The low-smoke low-halogen flame-retardant cable can withstand the bundle burning test specified in GB/T18380.3-2001, and the smoke concentration symbol GB/T17651.1-1998 at the time of combustion, the HCL content in the combustion evolved gas should be mg100mg/g. .

The low-smoke and halogen-free flame-retardant cable can withstand the bundle burning test specified in GB/T18380.3-2001, and the smoke concentration of the combustion-extracted gas solution is ≧4.3, and the conductivity is ≥4.3. Rate ≦ 10 /mm.

The fire resistant cable can withstand the fire test specified in GB12666.6-90

Third, cable laying

1. The cable temperature should not be lower than 0 °C when laying, and the cable should be preheated when the ambient temperature is lower than 0 °C.

2. Bending radius of laying:

(1) The single-core cable is not less than 20 times the outer diameter of the cable, and is not less than 15 times the outer diameter of the cable.

(2) The multi-core cable is not less than 15 times the outer diameter of the cable, and the armor is not less than 12 times the outer diameter of the cable.

3. After the cable is laid, it should be subjected to DC withstand voltage test, and the test voltage is 4U in 15 minutes.