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
/
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Testing condition:
Testing length: 5m
Time for immersion in the water is one hour
temperature of water is 70℃
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
OVERHEAD LINE CONDUCTORS
