Mine power cables application

Use: this product is a coal mine with rated voltage up to and including 1 kv cable laying, suitable for the coal mine power transmission.

Mine power cable service conditions

Wire core long-term allowable working temperature of 65 ℃, cable laying temperature not lower than 0 ℃, cable bending radius 15 (D + d) ± 5%. Model Name MVV PVC insulated power cable for mining Energy transmission lines, but can not bear external mechanical forces MVV22 mine PVC insulated steel tape armored PVC sheathed power cable Energy transmission lines, able to bear external mechanical forces MVV32 mine PVC insulated, steel wire armored PVC sheathed power cable Energy transmission lines, can withstand a certain tension MV42 PVC insulated thick steel wire armored PVC sheathed power cable for mining Energy transmission lines, able to withstand greater tension 

Mine power cable section selection

Cable cross-section options include the choice of high-voltage and low-voltage cable cross-section cable selection, and low voltage cable cross-section selection based.
Main cable cores choices; mining area generally longer than the low-voltage power lines, in the operation of the current flowing through the cable voltage drop will generate heat. In order to ensure the normal operation of the cable and the motor, the choice of cable cross-section, you should observe the following principles:
（1）the cable during normal operation, the actual temperature rise should not exceed the maximum allowable temperature insulation.
（2）when working on the cable line voltage loss allowed to choose.
（3）cable section is selected to meet the mechanical strength requirements.