Mining flame-retardant telephone wire, steel wire armored communication cable, national standard quality

National standard quality of large logarithmic communication cables for mining flame-retardant telephone lines

Mining communication cable structure;
1. Wire: Annealed bare copper wire with diameters of 0.30, 0.42, 0.52, 0.60, 0.70, 0.80, 0.90 (mm).
2. Insulation material: high-density polyolefin or polypropylene, indicating the color of the insulation wire according to the full chromatographic standard.
3. Insulated wire pair: Twist two insulated wires of different colors into pairs at different pitches, and use a specified chromatographic combination to identify the wire pair.
4. Communication cable core structure: Based on 1 pair as the basic unit, cables with more than 25 pairs are combined by unit, and each unit is wrapped with a unit cable tie of the specified color spectrum to identify different units. For cables with 100 or more pairs of wires, there is a 1% reserve wire pair, but the maximum number should not exceed 6 pairs. Fill the gaps inside the cable core with petroleum paste.
5. Cable core wrapping tape: Wrap it with polyester film tape.National standard quality of large logarithmic communication cables for mining flame-retardant telephone lines
6. Shielding: Copper wire shielding or using embossed (or non embossed) metal tape, with the metal tape longitudinally wrapped outside the communication cable core wrapping tape.
7. Sheath: Blue high-density polyethylene. Double layered sheathed communication cables can also be provided.
Identification and length marking of mining communication cables; The outer surface of the cable is marked with sexual identification marks, with an interval of no more than 1m. The marking content includes: wire diameter, number of wire pairs, cable model, manufacturer's name and code, and manufacturing year. The length mark is marked on the outer surface with an interval of no more than 1m, but it is staggered from the above markings. The mining communication cable adopts full spectrum insulation and aluminum-plastic composite sheath (i.e. the longitudinal shielding aluminum tape of the cable is bonded to the sheath to form a sealed protective layer), which has the characteristics of electrical performance and convenient construction.

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The standard for mining communication cables is MT818.14-1999 MHYV (1 × 2 2 × 2 1 × 4 5 × 2) × 7/0.28. The mining communication cable is insulated with polyolefin and sheathed with polyvinyl chloride, and is used in level tunnels, inclined tunnels, and mechanical and electrical chambers
MHJKV 4/0.28 copper wire+3/0.28 steel wire 1 × 2 2 × 2 coal mine reinforced core polyolefin insulated polyvinyl chloride sheathed mining communication cable for use in flat and inclined tunnels with high mechanical damage
MHYAV 1/0.8 (20 × 2 30 × 2 50 × 2) × 0.8 Polyene insulation, aluminum polyene bonding layer, and polyvinyl chloride sheath are used for mining communication cables in damp inclined and flat shafts
MHYA32 (30 × 2, 50 × 2, 80 × 2) × 0.8 coal mine polyolefin insulation, aluminum polyolefin bonding layer, steel wire armor, polyvinyl chloride sheath, mining communication cable for vertical and inclined shafts
MHYVR coal mine communication flexible cable with polyolefin insulation and polyvinyl chloride sheath
MHYVP coal mine communication cable with polyolefin insulation, braided shielding, and polyvinyl chloride sheath
MHYVRP coal mine polyolefin insulated braided shielded polyvinyl chloride sheathed communication flexible cable
MHY32 coal mine polyolefin insulated steel wire armored polyvinyl chloride sheathed communication cable
MHVV (HUVV) mining PVC insulated flame-retardant PVC sheathed cables are used in flat tunnels, inclined tunnels, and electromechanical chambers
MHJKV (HUJKV) mining polyolefin insulated flame-retardant polyolefin sheathed reinforced flexible cable is used for cables with good tensile strength
MHYBV (HUYBV) mining polyolefin insulated galvanized steel wire braided armor flame-retardant polyolefin sheathed communication cable used in flat and inclined tunnels with high mechanical impact MHYBV (2-10) × 2 × (0.75-1.5) mm2
MHYBV 1X(2～7)X(0.75-1.5)mm2
MHYAV (HUYAV) mining polyolefin insulated aluminum/plastic composite tape shielded flame-retardant polyolefin sheathed communication cable is used as a communication line in damp inclined shafts and tunnels
MHYA32 (HUYA32) mining polyolefin insulated aluminum/plastic composite tape shielded steel wire armored flame-retardant polyvinyl chloride sheathed communication cable used as communication line for coal mine shafts or inclined shafts
MHVV32-4 (4 × 1.5) mining flame-retardant composite communication cable is used as a communication line for coal mine shafts or inclined shafts
MHPVP3V32-7 (2 × 2 × 0.5+1 × 0.5+2 × 6.0) Flame retardant composite communication cable for coal mines, used as a communication line for coal mine shafts or inclined shafts
MHYVRPZ Mining Polyene Insulated Aluminum/Plastic Composite Tape Shielded Braided Armored Polychloroene Sheathed Communication Flexible Cable Used as Communication Line in inclined shafts and tunnels
Mining flame-retardant and explosion-proof network cable MHYV4 * 2 * 0.5, mining network cable, coal mine monitoring network cable, mining shielding network cable Application scope: Mining network cable is a dedicated line for safe and information-based data transmission in coal mining production enterprises, especially playing a key role in data transmission in industrial ring networks. Our company's main product MHSYV-5 4 * 2 * 0.5 mining network cable, mining explosion-proof network cable MHYV4 * 2 * 0.5, is mainly used for: tunnels, flat shafts, vertical shafts, coal mining sites, etc., remote video monitoring distributed front-end collection and transmission system

Mining flame-retardant and explosion-proof network cable MHYV4 * 2 * 0.5, mining network cable, coal mine monitoring network cable, mining shielded network cable reference standard: MT818.14-1999

Mining flame-retardant network cable specifications: 4 * 2 * 0.5 8 * 2 * 0.5 16 * 2 * 0.5 20 * 2 * 0.5 25 * 2 * 0.5

Mining flame-retardant and explosion-proof network cable MHYV4 * 2 * 0.5, mining network cable, coal mine monitoring network cable, mining shielded network cable Product structure:

Conductor: Single solid bare copper conductor (0.5mm)

Insulation: Solid polyethylene, colors: blue * white/blue, orange * white/orange, green * white/green, brown * white/brown

Twisted pair: Two insulated core wires are twisted in pairs, with each pair using a different twist pitch to ensure good near end crosstalk (NEXT) characteristics

Cabling: 4 twisted pairs to ensure good near end crosstalk (NEXT) characteristics

Shielding: Aluminum foil and copper wire weaving, weaving density ≥ 60%

Outer sheath: flame retardant blue polyvinyl chloride PVC

The installation of flame-retardant network cables for coal mines must be strictly sealed according to the construction process. The intermediate joint must adopt a sealing structure with a metal copper shell and PE or PVC insulation anti-corrosion layer to ensure the compactness of the lead seal during on-site construction, which effectively ensures the sealing and waterproof performance of the joint.

Mining network cables can also be customized according to user requirements (such as steel belt armor, steel wire armor)