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Cables for coal mines
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- Product Description
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1. Product Introduction
Power cables for coal mines are mainly used for power transmission in underground coal mines and can be divided into two types: PVC insulated and cross-linked polyethylene insulated. The rated voltage is generally 10kV and below. According to different application scenarios, they can be divided into non-armored, steel tape armored, and steel wire armored cables. Power cables for coal mines have good flame retardant properties, which can effectively prevent or delay the occurrence of fire and stop the spread of flames.
2. Production Standards
Our company produces coal mine cables in accordance with "MT818-2009 Coal Mine Cables" and "MT/T836-2011 Test Methods and Judgment Rules for Flame Retardant Performance of Coal Mine Cables" standards.
3. Scope of Use
This product is suitable for power transmission in underground coal mines with rated voltages of 10kV and below.
4. Operating Characteristics
4.1. The maximum rated operating temperature of cable conductors is 90℃ for cross-linked polyethylene insulation and 70℃ for PVC insulation.
4.2. During a short circuit (maximum duration not exceeding 5s), the maximum temperature of cable conductors is not exceeding 250℃ for cross-linked polyethylene insulation and not exceeding 160℃ for PVC insulation.
4.3. The ambient temperature during cable laying should not be lower than 0℃, and the minimum bending radius should be 15 times the cable diameter.
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