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Help CenterRetard AC Voltage 250V Mine PE Insulated Underground Multicore Cable
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retard AC voltage 250V Mine PE insulated underground Multicore Cable
Mine Sinal Cable
Product StandardEnterprise standard
UsageThis product is suitable for use retard AC voltage 250V and below coal mine underground with transmitting frequency below 30kHz.
Operating characteristics1, Allowed work temperature of cable for a long period should not exceed 70℃.
2, Temperature for laying cable should be not less than 0℃ and the min. bend radius is 10 time of cable overall diameter.
Type|
Type |
Name |
Application |
|
PUYVP |
Mine PE insulated combustion retardant PVC sheathed signal cable |
ln underground electric field with relatively large disturbance |
|
PUYVR |
Mine PE insulated combustion retardant PVC sheathed soft signal cable |
As underground common signal or end instrument information transmitting line |
|
PUYVRP |
Mine PE insulated copper wire woven screened combustion retardant PVC sheathed soft signal cable |
ln underground electric field with relatively large disturbance |
For cable specifications
|
Type |
Nom cross-sectional mm2 |
Fabric of cores No./Diameter mm |
No. of cores |
|
PUYVP |
1.5 |
1/1.38 |
4 |
|
PUYVR |
0.5 , 1.5 |
7/0.30 , 7/0.52 |
4 |
|
PUYVRP |
0.75 |
7/0.37 |
2 , 3 |
Technical conditions
1. For structure size and chief technical parameters of this product
|
Type |
No. of cod×Nominal Area mm2 |
Insulation thickness mm |
Sheathed thickness mm |
Diameter mm |
Weight kg/km |
|
PUYVP |
4×1.5 |
0.7 |
1.6 |
14.0 |
265 |
|
PUYVR |
4×0.5 |
0.6 |
1.0 |
7.5 |
105 |
|
4×1.5 |
0.7 |
1.0 |
10.5 |
135 |
|
|
PUYVRP |
2×0.75 |
0.6 |
1.0 |
10.5 |
278 |
|
3×0.75 |
0.6 |
1.0 |
11.0 |
307 |
2. Conductor resistance (20°C)of cable should be not bigger than:
0.5 mm2 37.5Ω/km;
0.75 mm2 25.1Ω/km;
1.5 mm2 12.5Ω/km.
3. Cable should undergo AC 50HZ 1000V voltage test for 1 min, without being punctured.
4. Work capacity of cable should be not bigger than 0.061μF/km
5. Cable inductance should be not bigger than 0.716mH/km
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