PVC Insulation & Sheath Power Cable of 0.6/1kV or Lower
It is used to transmit and distribute power on the power line of A.C rated voltage 0.6/1kv.
Executive standard:
Executive standard : GB/T12706.1-2008(equal to the standard of IEC 60502 )
Working Condition
Long-term working temperature allowed by cable conductor shall be no more than 70℃.
Max .temperature of cable conductor shall be no more than 160℃ during short circuit (the longest lasting time shall be no more than 5 seconds).
Environment temperature for installation shall be no less than 0℃
Type,Description and Application occasion
|
Type
|
Description
|
Application Occasion
|
|
Cu
|
AI
|
|
VV
|
VLV
|
Power cable with PVC insulation and sheath
|
To be laid indoors, in the tunnel, cable furrow or pipe , The cable can not bear mechanical force from outside.
|
|
VV22
|
VLV22
|
Power cable with PVC insulation , PVC sheath and steel tape armored
|
To be laid underground , the cable can bear certain mechanical force , but it can not bear great pulling force.
|
Note:
1. We also produce flame-retardant fire resistant type power cable according to the requirement of the customer .Prefix “ZR” should be added to the original type of cable in ordering flame retardant cable ;prefix “NH-“for fire resistant cable .
2. We also produce VV32, VLV32 type steel wire armored power cable according to the requirement of the customer .Magnetism-separated measure shall be adopted by single core steel wire armored cable.
Production Scope
|
Type
|
Core number
|
Nominal crose section area (mm2)
|
|
Cu
|
Al
|
|
VV—
VV22
|
—
VLV
VLV22
|
1
|
1.5~800
2.5~800
10~800
|
|
VV—
VV22
|
—
VLV
VLV22
|
2
|
1.5~185
2.5~185
4~185
|
|
VV—
VV22
|
—
VLV
VLV22
|
3
|
1.5~300
2.5~300
4~300
|
|
VV—
VV22
|
—
VLV
VLV22
|
4
|
2.5~300
2.5~300
4~300
|
|
VV
VV22
|
VLV
VLV22
|
3+1
|
4~300
4~300
|
Note：1.We also produce cable with five cores according to the requirement of the customer.
2.Non-magnetic metal tape wrapping should be adopted as armored layer for single core armored cable for A .C. system.
Main Technical Parameter of cable
Max value of conductor DC resistance shall meet the requirement of conductor of category 2 stipulated in GB/T3956 standard at 20℃ .
For single core cable without shielding ,voltage test of 3.5kV under power frequency is put on for 5 minutes between conductor and water when be immersed in the water for one hour .For multi-core cable ,between each insulated conductor and other conductor ,voltage test of 3.5kV under power frequency is put on for 5 minutes without puncture of insulation.
