煤矿用聚（氯）乙烯绝缘和聚氯乙烯护套电缆pvc insulatedpvc sheathed ephone cables for use in mines
产品用途:本产品适用于固定敷设在矿井作通信干线及分线箱与机连接线
scope of application:this product is fit for being laid in fixed placed in mines for the connection of communication trunk linesjunction boxephones.
执行标准 standards implemented: q/3210hl29-2003
型号、名称及使用范围 model desc-riptionsuse scope
| 型 号model | 名 称desc-riptions | 使 用 范 围scope of application |
| mhvv（huvv） | 煤矿用聚氯乙烯绝缘阻燃聚氯乙烯护套电缆pvc insulated fire retardant pvc sheathed ephone cables for use in mines | 矿井中一般场合general circumstances in mines |
| mhvvr（huvvr） | 煤矿用聚氯乙烯绝缘阻燃聚氯乙烯护套软电缆pvc insulated fire retardant pvc sheathed soft ephone cables for use in mines | 矿井中分线盒、分线箱与机连接的场合where connection between junction boxephone is required in mines |
| mhvv22（huvv22） | 煤矿用聚氯乙烯绝缘钢带铠装阻燃聚氯乙烯护套电缆pvc insulated steel tape armored fire retardant pvc sheathed ephone cables for use in mines | 矿井中承受一定冲击力和压力的场合where cables are under some impactpressure in the mine |
| mhvv32（huvv32） | 煤矿用聚氯乙烯绝缘细圆钢丝铠装阻燃聚氯乙烯护套电缆pvc insulated fine round steel wire armored fire retardant pvc sheathed ephone cables for use in mines | 矿井中垂直敷设或承受较大拉力的场合vertically laid or laid where the cables are under big impactpull force in mines |
| mhyv（huyv） | 煤矿用聚乙烯绝缘阻燃聚氯乙烯护套电缆pe insulated fire retardant pvc sheathed ephone cables for use in mines | 矿井中一般场合general circumstances in mines |
| mhyvr（huyvr） | 煤矿用聚乙烯绝缘阻燃聚氯乙烯护套软电缆pe insulated fire retardant pvc sheathed soft ephone cables for use in mines | 矿井中一般场合general circumstances in mines |
| mhyv22（huyv22） | 煤矿用聚乙烯绝缘钢带铠装阻燃聚氯乙烯护套电缆pe insulated steel tape armored fire retardant pvc sheathed ephone cables for use in mines | 矿井中承受一定冲击力和压力的场合where cables are under some impactpressure in the mine |
| mhyv32（huyv32） | 煤矿用聚乙烯绝缘细圆钢丝铠装阻燃聚氯乙烯护套电缆pe insulated fine round steel wire armored fire retardant pvc sheathed ephone cables for use in mines | 矿井中垂直敷设或承受较大拉力的场合vertically laid or laid where the cables are under big impactpull force in mines |
电缆结构示意图iiiustration of cable structure
使用特性 service characteristics
| 电缆*允许工作温度long-term service temperature of the cable conductor | -40℃-+50℃ |
| 电缆敷设温度cable laying temperature | ≥-10℃ |
| +25℃时环境相对湿度environment relative humidity at 25℃ | ≤95% |
| 电缆的zui小弯曲半径minimun bending radius | mhvv mhyv mhvvr mhyvr 型电缆为电缆外径的15倍，其它型号为外径的20倍15 times of the cable outer diameter of mhvv mhyv mhvvr mhyvr,20times for the rest |
电缆规格 specifications
| 型 号model | 规 格specifications | 导体结构（根数/直径）mm conductor structure（number/diameter） |
| mhyvr mhvvr | 1x2 | 1/0.28镀锡铜线 +6/0.28镀锡钢线1/0.28 tinned copper wire +6/0.28 tinned steel wire |
| mhvv22 mhvv32 mhyv22 mhyv32 | 2x2-100x2 | 1/0.5; 1/0.8 |
| mhvv mhyv | 1x2-100x2 | 1/0.5; 1/0.8 |
电缆主要技术性能 major technical performances
1、 电缆导体直流电阻及固有衰减
dc resistance of the conductorintrinsic attenuation
| 型 号model | +20℃导体直流电阻（≤ω/km）dc resistance of conductor at 20℃ | 固有衰减（800hz）≤db/km intrinsic attenuation |
| mhvvr mhyvr | 260 | 4.63 |
| mhvv22 mhvv32 mhyv22 mhyv32 mhvv mhyv | 95（0.5mm）; 36.7（0.8mm） | 1.32（0.5mm）; 0.95（0.8mm） |
2、电缆其它技术性能 other major technical performances
| 序 号serial number | 项 目items | 型 号model:mhvv mhvvr mhvv22 mhvv32 | 型 号model:mhyv mhyvr mhyv22 mhyv32 | |
| 1 | +20℃线芯导体直流电阻（ω/km）line core dc resistance at 20℃ | 见上表 see above table | ||
| 2 | 电缆固有衰减（≤dm/km）cable intrinsic attenuation | 见上表 see above table | ||
| 3 | +20℃绝缘电阻（≥mω·km）insulating resistance at 20℃ | 110 ; 40（mhvvr） | 3000 ; 110（mhyvr） | |
| 4 | 1min工频交流电压试验lmin power frequency alternating current pressure test | 芯-芯core - core芯-铠装层core - armoring | 1000v不击穿 1000v no breakdown | 1500v不击穿1500v no breakdown |
| 5 | 工作电容（≤μf/km）service capacity | 0.12 | 0.06 | |
| 6 | 单根垂直燃烧试验single wire burning test | mt386 | ||
| 7 | 成束燃烧试验group burning test | 符合gb/t 18380.3标准中b类成束试验要求conforms to gb/t18380.3 standard b types group test | ||
环保在线