型号、名称及使用范围 Model descrtptions and Use scope
型 号
Model |
名 称
Descrtptions |
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话电缆 PVC insulated fire retardant PVC sheathed telephone 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话电缆 PVC insulated fire retardant PVC sheathed soft telephone 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 box and telephone 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话电缆 PVC insulated steel tape armored fire retardant PVC sheathed telephone 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 impact and pressure 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话电缆 PVC insulated fine round steel wire armored fire retardant PVC sheathed telephone 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 impact and pull force in mines |
| MHYV(HUYV) | 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 telephone 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话电缆 PE insulated fire retardant PVC sheathed soft telephone 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话电缆 PE insulated steel tape armored fire retardant PVC sheathed telephone 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 impact and pressure 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话电缆 PE insulated fine round steel wire armored fire retardant PVC sheathed telephone 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 impact and pull 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 and 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 conductor and Intrinsic 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 |
||
