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电话机连接线
scope of application:this product is fit for being laid in fixed placed in mines for the connection of communication trunk linesjunction boxbephones.
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
|
| mhvvhuvv | 煤矿用聚氯乙烯绝缘阻燃聚氯乙烯护套电话电缆pvc insulated fire retardant pvc sheathed bephone cables for use in mines | 矿井中一般场合general circumstances in mines |
| mhvvrhuvvr | 煤矿用聚氯乙烯绝缘阻燃聚氯乙烯护套软电话电缆pvc insulated fire retardant pvc sheathed soft bephone cables for use in mines | 矿井中分线盒、分线箱与电话机连接的场合where connection between junction boxbephone is required in mines |
| mhvv22huvv22 | 煤矿用聚氯乙烯绝缘钢带铠装阻燃聚氯乙烯护套电话电缆pvc insulated steel tape armored fire retardant pvc sheathed bephone 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 |
| mhvv32huvv32 | 煤矿用聚氯乙烯绝缘细圆钢丝铠装阻燃聚氯乙烯护套电话电缆pvc insulated fine round steel wire armored fire retardant pvc sheathed bephone 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 |
| mhyvhuyv | 煤矿用聚乙烯绝缘阻燃聚氯乙烯护套电话电缆pe insulated fire retardant pvc sheathed bephone cables for use in mines | 矿井中一般场合general circumstances in mines |
| mhyvrhuyvr | 煤矿用聚乙烯绝缘阻燃聚氯乙烯护套软电话电缆pe insulated fire retardant pvc sheathed soft bephone cables for use in mines | 矿井中一般场合general circumstances in mines |
| mhyv22huyv22 | 煤矿用聚乙烯绝缘钢带铠装阻燃聚氯乙烯护套电话电缆pe insulated steel tape armored fire retardant pvc sheathed bephone 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 |
| mhyv32huyv32 | 煤矿用聚乙烯绝缘细圆钢丝铠装阻燃聚氯乙烯护套电话电缆pe insulated fine round steel wire armored fire retardant pvc sheathed bephone 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
| 电缆长期允许工作温度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% |
| 电缆的最小弯曲半径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 structurenumber/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 perbances
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); 36.70.8mm
|
1.320.5mm; 0.950.8mm
|
2、电缆其它技术性能 other major technical perbances
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 ; 40mhvvr | 3000 ; 110mhyvr | |
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conbs to gb/t18380.3 standard b types group test | ||
