What are the characteristics of coal mine power cables?

I. What are the characteristics of coal mine power cables?1. As the low-voltage power supply voltage in the mining area is generally 380/660V power supply, priority is given to the use of 660V power supply, so the main level of the selected cable voltage should be greater than or equal to 660V.2. Fixed or semi-fixed laying of power cables are usually armored cables or non-combustible rubber cables.3. Mobile or hand-held electrical equipment should be used for the use of special non-combustible rubber cables.4. Cable. 4, fixed laying of lighting, communication, signaling and control with the cable should be armored cable, plastic cable or rubber cable, non-fixed laying, the application of rubber cable. 5, low-voltage cables are strictly prohibited to use aluminum core. 6, the determination of the length of the cable (1) for the armored cable, the length of the roadway for the actual length of the 1.05 times; for the rubber cable; the length of the actual length of the roadway for the 1.1 times.

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