产品用途:产品用于煤矿井下电话通信干线、配线和用户线路。Scopeofapplication:Theproductusesinthecoalminemineshafttelephonecommunicationskeletonline,matchesthelineandthesubscriber'sloop执行标准Standa***implemented:MT81814-1999型号、名称及使用范围Model、Descripti***andUsescope型号Model名称Descripti***使用范围UsescopeMHYV煤矿用聚乙烯绝缘聚***护套通信电缆PEinsulatedPVCsheathedcommunicationcablesforcoalmines用于平巷、斜巷及机电硐室Servedinlevel,slantedchannelsandpowerhouseMHJYV煤矿用加强型线芯聚乙烯绝缘聚***护套通信电缆ReinforcedcorePEinsulatedPVCsheathedcommunicationcablesforcoalmines用于机械损伤较高的平巷和斜巷ServedinlevelandslantedchannelswheremechanicaldamageisfrequentMHYBV煤矿用聚乙烯绝缘镀锌钢丝编织铠装聚***护套通信电缆PEinsulatedgalvanizedsteelwirewe***earmoredPVCsheathedcommunicationcablesforcoalmines用于机械冲击较高的平巷和斜巷ServedinlevelandslantedchannelswheremechanicaldamageisfrequentMHY***煤矿用聚乙烯绝缘铝-聚乙烯粘护层聚***护套通信电缆PEinsulatedAl/PEbindinglayerPVCsheathedcommunicationcablesforcoalmines用于较潮湿的斜井和平巷ServedinlevelandslantedchannelswithhighhumidityMHYA32煤矿用聚乙烯绝缘铝-聚乙烯粘结护层钢丝铠装聚***护套通信电缆PEinsulatedAl/PEbindinglayersteelwirearmoredPVCsheathedcommunicationcablesforcoalmines用于竖井或斜井Servedinshaftandslantedshaft使用特性Servicecharacteristics电缆长期允许工作温度Long-termservicetemperatureofthecableconductor-40℃-+50℃电缆敷设温度Cablelayingtemperature≥-10℃+25℃时环境相对湿度Environmentrelativehumidityat25℃≤95%电缆的***小弯曲半径MinimunbendingradiusMHYV及MHJYV型电缆为电缆外径的10倍，其它型号为外径的15倍10timesofthecableouterdiameterofMHJYV,and15timesfortherest电缆规格Specificati***型号Model规格Specificati***导体结构(根/直径)mmConductorstructure(number/diameter)MHYV1x2、2x2、1x4、5x27/0.28MHJYV1x2、2x24/0.28铜线+3/0.28钢线4/0.28copperwire+3/0.28steelwireMHYBV5x2、10x2、20x21/0.8MHY***20x2、30x2、50x2MHYA3230x2、50x2、80x2电缆主要技术性能Majortechnicalperformances1、电缆导体直流电阻及固有衰减DCresistanceoftheconductorandIntrinsicattenuation型号Model20℃时导体直流电阻DCresistanceofconductorat20℃≤Ω(，/km)固有衰减(800Hz)Intrinsicattenuation≤(,dB/km)MHYV451.10MHJYV731.30MHYBVMHY***MHYA3236.70.952、电缆其它主要技术性能Othermajortechnicalperformances(MHYV、MHJYV、MHYBVMHY***、MHYA32))