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Application
With the characteristics of stable performance、advanced technology、broad materials resources、low prices、good flexible and easy to lay and maintain, the polyvinyl chloride insulated power cable is used in fixing lay-up on transmission and distribution electric lines of 50 Hz A.C rated voltage 10 KV or below.
Application properties
- Long term permissible working temperature of cable conductive core is not more than 70℃.
- During short circuit (maximum permanent time is not more than 5 seconds), Temperature of cable conductor is not more than 165℃.
- The difference level of lay-up cable is not restricted. When laying the cable, ambient temperature of laying is not low than 0℃.
- They have a good chemical stability, acid resistance, alkali resistance, salt resistance, oil resistance, solvent resistance and flame retardant properties..
- Light weight, good bending properties and easy to install and maintenance
Standard
- IEC 60502 Power cable with extruded insulation and their accessories for rated voltages fron 1kV up to 30kV
- GB/T 12706 Power Cable with extruded insulation and their accessories for rated voltages fron 1kV up to 35kV
- IEC 60228 Conductor for insulated cables
- GB/T 3956 Conductor of insulated cables
Specification
|
| Type |
Description |
Application |
| Cu Core |
Al. Core |
| VV |
VLV |
Copper(aluminium)core, PVC insulated and sheathed power cable |
Mainly laid indoors. Channels, cable slot, tube and other places. Unable to bear external mechanical pulling force and pressure during laid. |
| VY |
VLY |
Copper(aluminium)core, PVC insulated, PE sheathed power cable |
| VV22 |
VLV22 |
Copper( aluminium)core, PVC insulated, steel tape armouring PVC sheathed power cable |
Laid indoors, tunnels, underground and canal. Able to bear mechanical pressure but unable to bear large pulling force. |
| VV23 |
VLV23 |
Copper(aluminium)core, PVC insulated, steel tape armouring PE sheathed power cable |
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VV32
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VLV32 |
Copper(aluminium)core, PVC insulated, fine steel wire armouring PVC sheathed power cable |
Laid in silo, cable tray, channel and large difference of level, big span shelves, able to bear external mechanical pressure and moderate pulling force. |
| VV33 |
VLV33 |
Copper(aluminium)core, PVC insulated, fine steel wire armouring PE sheathed power cable |
| VV42 |
VLV42 |
Copper(aluminium)core, PVC insulated, thick steel wire armouring PVC sheathed power cable |
Laid in silo, cable tray, channel and large difference of level, big span shelves, able to bear larger external mechanical pressure and pulling force. |
| VV43 |
VLV43 |
Copper(aluminium)core, PVC insulated, thick steel wire armouring PE sheathed power cable |
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