Flexible Power Cable for Telecommunication
Product Description
It is used to transmit and distribute power of A.C rated voltage 0.6/1 kV or lower for power system. It has not only better performance of PVC insulation power cable, but also advantages of softness and flexibility as well
Executive standard: YD/T1173-2001
Type and description:
Type |
Description |
|
RV |
Soft power cable with Cu core, PVC insulation |
|
RVZ |
Soft power cable with Cu core, PVC insulation, flame resistant |
|
RVV |
Soft power cable with Cu core, PVC insulation and sheath |
|
RVVZ |
Soft power cable with Cu core, PVC insulation & sheath, flame resistant |
|
RVV22 |
Soft power cable with Cu core, PVC insulation & sheath, steel tape armor |
|
RVVZ22 |
Soft power cable with Cu core, PVC insulation & sheath, steel tape armor, flame resistant. |
Production Condition
- Max. temperature of cable conductor for Long-term working is 70℃
- Min. environment temperature for installing cable is 0℃
- Bending radium allowed by cable:
It will be no less than 8 times that of cable O.D for inarmored cable and 20 times that of cable O.D for armored cable
- Max. working temperature of cable conductor is 160℃ during short circuit (the longest lasting time shall be no more than 5 seconds).
Main technical parameter
- Max. DC resistance value of conductor at 20℃ shall meet the requirements of the following table:
|
Nominal cross section area |
1.5 |
2.5 |
4 |
6 |
10 |
16 |
25 |
35 |
50 |
|
Max. DC resistance of conductor at 20℃ |
13.3 |
7.98 |
4.91 |
3.30 |
1.91 |
1.21 |
0.780 |
0.554 |
0.389 |
|
Nominal cross section area |
70 |
95 |
120 |
150 |
185 |
240 |
300 |
400 |
|
|
Max. DC resistance of conductor at 20℃ |
0.272 |
0.206 |
0.161 |
0.129 |
0.106 |
0.0801 |
0.0641 |
0.0495 |
|
- Min. insulation resistance at 70℃
|
Nominal cross section area (mm2) |
Min. insulation resistance at 70℃ |
Nominal cross section area |
Min. insulation resistance at 70℃ |
|
1.5 |
0.01. |
70 |
0.0032 |
|
2.5 |
0.009 |
95 |
0.0032 |
|
4 |
0.007 |
120 |
0.0029 |
|
6 |
0.006 |
150 |
0.0029 |
|
10 |
0.0056 |
185 |
0.0029 |
|
16 |
0.0046 |
240 |
0.0028 |
|
25 |
0.0044 |
300 |
0.0028 |
|
35 |
0.0036 |
400 |
0.0026 |
|
50 |
0.0037 |
/ |
/ |
|
Testing condition:
|
|||
- A.C. voltage test under power frequency
The finished cable shall bear A.C. voltage test of 50Hz listed in the following table without puncture
Core No. |
Testing method |
Sample length |
Voltage |
Lasting time |
|
|
Rated voltage |
Testing voltage |
5min |
|||
|
Single core |
Immersing in the water for 1th |
Manufacturing length |
450/750 |
2500 |
|
|
Multi-core and armoring |
interphase |
600/1000 |
3500 |
||