Mining communication cables use: solid insulation filling cable laying of pipelines for coal pipe network, mainly used for pipe laying. In the cable core and shield the inner and outer surfaces with petroleum jelly filling or pouring handle to prevent water intrusion in the coal mine. Common coal 30 C 60 C ambient conditions, coal mine communication cable's mechanical and electrical properties remain unchanged. For Lane, Inclined, and electrical and mechanical chamber to do the lines of communication, as well as for the drift, shaft or inclined to the primary signal transmission.

Mine communication cable type and use:
MHYVP: coal braided shield PVC sheathed communication cables with polyethylene insulation for larger spaces for signal transmission of the electric field interference, and for laying
MHY32: coal with polyethylene insulated wire Kai fitted PVC sheathed communication cables for drift, shaft or inclined to the primary signal transmission
MHYVR: coal soft polyethylene insulated PVC sheathed communication cables, used to mine for a common signal transmission, removable
MHYV (PUYV): polyethylene insulated flame retardant PVC sheathed mine Lane, Inclined, and electrical and mechanical communication cable for playing chamber
MHJYV (PUJYV): polyethylene insulated flame retardant PVC jacket to strengthen mine communication cable (three steel and copper), for drift, Inclined, good tensile strength.
MHYBV (PUYBV): for use in mines insulated galvanized steel wire braid armored flame retardant PVC sheathed communication cables for high mechanical shock drift, Inclined
MHYAV (PUYAV): Coal bonding of polyethylene insulated aluminum / polyethylene sheath flame retardant PVC sheathed communication cables for the wet and slanted lines of communication
MHYA32 (PUYA32): coal with polyethylene insulated aluminum / polyethylene bonded sheath galvanized steel wire armored, fire retardant PVC sheathed communication cables for the communication lines of the coal mine shafts and inclined

Coal with flame retardant communication cables ... mh
Polyethylene insulation ...... Y-
Copper wire core. Province drop
Aluminum - polyethylene adhesive protection layer ... A
Polyethylene sheath ... province fall
Copper wire braided armored ...... B
Blue Flame retardant PVC jacket. V-Steel
Wire armored blue flame-retardant PVC jacket ... 32
Copper wire braid shield ... P
Soft wire core ... R
Comply with: MT386-1995 "Coal Mine flame-retardant cable flame resistance test methods and determine the Rules and Q / TX 002-2006 for coal mine fire-retardant communication cable

Mine communication cable structure:
Conductor: annealed bare copper wire, copper wire diameter the 0.30,0.42,0.52,0.60,0.70,0.80,0.90 (mm).
2, the insulating material: high density polyethylene or polypropylene, in accordance with standard indicate the color of the insulated wire.
Insulated wire: twisted pairs of insulated wires of two different colors to different pitch and with specified color combinations to identify the pair.
4, the communication cable cable core structure: 1 pairs as the basic unit of more than 25 on the cable according to the combination of units, each unit provisions chromatography unit tie around the bar, in order to identify the different units. And over 100 pairs of 's making lines on the cable, plus 1% of the preparation line, but no more than six pairs. The gap within the cable core is filled with petroleum jelly.
The cable core strap: polyester film tape around the package.
6 Shield: copper wire shielding or corrugated (or corrugated) metal band, metal band longitudinally in the communication cable cable core package with the outside.
7, the sheath: the blue low-density polyethylene. You can also double-sheathed communication cables.

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