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Mine cable product introduction

Mine cable is short for coal mines with cable, mining cables are flame retardant cable, should be through national mine safety standard product safety signs Center issued a mining product safety certification mark. U-type (M type) Mine rubber cables.
Scope of application
Mine rubber set soft cable is suitable for rated power-frequency voltage U0 / U up to and including 8.7/10 kv mine power devices with mobile laying cable.

Mine cable feature

Frequency rated voltageU0/U 380/660V、660/1140V、1.9/3.3kv、3.6/6kv、6/10KV、8.7/10KV。
Maximum allowable conductor temperature：65℃ 90℃
Cable to allow the minimum working temperature is -35 ℃ cable bend radius
Not more than six times the cable diameter.

Mine cable structure

1. Conductor: annealed bare copper wire, copper wire diameter 0.30,0.42,0.52,0.60,0.70,0.80,0.90 (mm). 　　
   2、the insulating material: high density polyethylene or polypropylene, marked in accordance with standard insulated wire color.
   3、insulated wire pairs: the two different colors of insulated wire twisted pairs at different pitch and with specified color combinations to identify the pair.
   4、communication cable cable core structure: one pair as the basic unit of more than 25 pairs of cable per unit, each unit provides chromatography unit with cable ties around the bar, in order to identify the different units. 100 pairs and above, plus a pair of cable pairs preparation of 1%, but not more than 6 pairs. Cable core filling the gap with petroleum jelly.
   5、covering: cable core is wound with polyester film bag.
   6、 shielding: copper shield or corrugated (or not corrugated) metal band, metal band longitudinally communication cable cable core package with outside.
   7、the jacket: blue low density polyethylene. Layer can also provide communication cable jacket.