Mine network cable MHYSV mine communication cable

future Cable Mine network cable MHYSV mine communication cable of the limited company MHYV (HUYV) (1 × 2 2 × 2 1 × 4 5 × 2) × 7/0.28,7/0.37,7/0.43,7/0.52 mining polymer ethylene Insulated and flame-retardant PVC sheathed mine communication cable 2-5 7/0.28 for drift, inclined roadway and electromechanical chamber Mine communication cable Coal safety certificate No.: 200551082005512120024126-2005 MHYAV (HUYAV) (20 × 2 30 × 2 50 × 2) × 0.8, 0.5,0.6,0.7 Mine polyethylene insulation, aluminum/polyethylene bonding sheath Flame retardant PVC sheathed mine communication cable Communication cable 10-100 pairs 1/0.81/1.0 for wet inclined shaft and drift Mine communication cable Coal Safety Certificate No.: 20034088-2005 MHYA32 (HUYA32) (30 × 2 50 × 2 80 × 2) × 0.8, 0.7, 0.9, 1.0 mining polyethylene insulated aluminum/polyethylene bonding sheath galvanized steel wire armored flame-retardant PVC sheathed mining communication cable 10-100 pairs 1/0.81/1.0 used as communication line for coal mine shaft or inclined shaft Coal Safety Certificate No.: 20034086-2005 mining communication cable MH copper core Omission of polyethylene insulation Y Aluminum polyethylene bonded sheath A Polyethylene inner sheath Omitting Braided Armor B PVC sheath V thin Round steel Wire armour, PVC outer coating 32 Indication method of mine communication cable Model and specification of mine communication cable. For example: a) Mine used polyethylene insulated aluminum polyethylene bonding sheath steel wire armored PVC sheathed communication cable with 30 twisted pair cores is expressed as MHYA32 30 × 2 b) Mine used polyethylene insulated PVC sheathed communication cable with 1 star core, It is expressed as: MHYV 1 × 4 main technical performance and index of mining communication cable DC resistance of conductor Ω/km 7/0.28 ≤ 45 7/0.28 (3 steel and 4 copper) ≤ 73 1/0.8 ≤ 36.7 inherent attenuation of mining communication cable (800~1000HZ) at 20 ℃ DB/km ≤ 1.1 ≤ 1.3 ≤ 0.95 mining communication cable insulation resistance of cable core at 20 ℃ M Ω. km ≥ 3000 mining communication cable pair working capacitance (800 ～ 1000HZ) uF/km ≤ 0.06 mining communication cable near end crosstalk attenuation (800 ～ 1000HZ) dB/500m ≥ 70 mining communication cable inductance (800 ～ 1000HZ) UH/km ≤ 800 mining communication cable withstands AC power frequency voltage of 1.5KV/1min. 2% of mining communication cable passing through the mining communication cable has DC resistance difference ≤ ring resistance. The long-term allowable working temperature of the mining communication cable conductor is - 40~50 ℃; The average relative humidity of mine communication cable is ≤ 95% (at 25 ℃). The allowable attachment and installation temperature of mine communication cable should not be greater than - 10 ℃. Mine communication cable * small bending radius: MHYV, MHJYV type cable is 10 times of the outer diameter of the cable, and other types of cable is 15 times of the outer diameter. Future Cable Co., Ltd Solemnly declare that: 1. Sign the product quality assurance certificate and promise that the unqualified products will never leave the factory. 2. Follow up service of product quality within two years, and keep customer service records in archives for 20 years. 3. Due to product quality problems, our company will guarantee, return, replace and meet customer requirements.