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 3, for use in mines control cable to use the occasion 

 MKVV MKVVP MKVVRP MKVVR 0.5-10mm2 ,2-61 core is applicable to weak control system, or strong electromagnetic interference area 

 MKVV22 MKVV32 0.5-10mm2 ,2-61 core 

 Strong electromagnetic interference 

 4, the main technical performance and indicators 

 DC resistance of conductor 20 ℃ Ω / km 0.75mm2 ≤ 24.5 1.0mm2 ≤ 18.1 1.5mm2 ≤ 12.1 2.5 mm ≤ 7.41 

 20 ° C, core insulation of the cable insulation resistance MΩ.km ≥ 60 

 AC power frequency resistance voltage 3.0KV/5min by 

 Mining the characteristics of the use of cable 

 The conductor of the long-term allowable working temperature -40 to +50 ° C; 

 The average maximum relative humidity ≤ 95% (+25 ° C) 

 Allow attached and installed the temperature should not exceed -10 ° C 

 Use characteristics: coal with long-term control of the cable conductor to allow the operating temperature of 70 ° C, cable laying temperature should be not less than 0 ℃. 

 Allowed bending radius of the coal used to control cable: cables with armor or copper tape shielding structure should not be less than the cable diameter 

 12 times. Soft cable shield structure should be not less than six times the cable diameter. Unarmored cables should not be small 

 6 times the cable diameter.