Long-term allowable operating temperature of high voltage mining cable is not more than 65℃/90℃.
1.Long-term allowable operating temperature of high voltage mining cable is not more than 65℃/90℃.
2.The lowest temperature of high voltage mining cable should more than-35℃.
3.This high voltage mining cable of shield machine is mainly used for heavy equipment for open-pit mine and underground digging under the voltage system of 8.7/15kV.
4.The bending radius:not more than 6 times of cable diameter.
|
No.ofcore |
NormalArea(mm2) |
Construction(No./mm) |
Sheaththickness(mm) |
OveralDiameter(mm) |
Insulationthickness(mm) |
MaxConductor resistanceat20°C(Ω/km)Bare |
MaxConductorresistanceat 20°C(Ω/km)Tinned |
|
1 |
0.75 |
24/0.20 |
0.8 |
4.6±0.2 |
0.8 |
26 |
26.7 |
|
1.0 |
32/0.20 |
0.8 |
4.8±0.2 |
0.8 |
19.5 |
20 |
|
|
1.5 |
30/0.25 |
0.8 |
5.1±0.2 |
0.8 |
13.3 |
13.7 |
|
|
2 |
0.75 |
24/.02 |
0.6 |
6.4±0.2 |
0.8 |
26 |
26.7 |
|
1.0 |
32/0.2 |
0.6 |
6.9±0.2 |
0.9 |
19.5 |
20 |
|
|
3 |
0.75 |
24/0.2 |
0.6 |
7.0±0.2 |
0.9 |
26 |
26.7 |
|
1.0 |
32/0.2 |
0.6 |
7.4±0.2 |
0.9 |
19.5 |
20 |