cable
IEC60502,GB/T12706
Copper/Al conductor for single core/multi-core
XLPE/PVC insulated
Armoured/Unarmoured PVC sheath
IEC60502,GB/T12706
Copper/Al conductor for single core/multi-core
XLPE/PVC insulated
Armoured/Unarmoured PVC sheath
Cable
1). Standard: IEC60502; GB/T12706
2). Detailed description or construction:
* Conductor: compacted or uncompacted copper or aluminium
* Insulation: Cross-linked polyethylene (XLPE) or Polyvinyl chloride (PVC)
* Filler: Polypropylene filament with lapped binding tape
* Binder: Binding tape
* Inner sheath: Polyvinyl chloride (PVC)
* Armour: Galvanized steel wire armored (SWA) or steel tape armored (STA)
*Sheath: Polyvinyl chloride (PVC)
3). The rated voltages U0/U(Um) of the cables considered in this standard are as follows:
U0/U(Um) =3.6/6(7.2)-6/10(12)-8.7/15(17.5)-12/20(24)-18/30(36)-21/35(40.5)KV
4). Voltage:
0.6/1kV, 1.8/3kV, 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV, 18/30kV, 21/35kV, 26/35kV
In the voltage designation of cables U0/U(Um):
* U0 is the rated power frequency voltage between conductor and earth or metallic screen for which the cable is designed;
* U is the rated power frequency voltage between conductors for which the cable is designed;
* Um is the maximum value of the "highest system voltage" for which the equipment maybe used.
5). Application:
For laying indoors, in tunnel or cable trench with large difference of level able to bear external mechanical forces.
6). Marking: According to the customers' requirements
7). Nominal cross-sectional areas:
1.5mm2, 2.5mm2, 4mm2, 6mm2, 10mm2, 16mm2, 25mm2, 35mm2, 50mm2, 70mm2, 95mm2, 120mm2, 150mm2, 185mm2, 240mm2, 300mm2, 400mm2, 500mm2, 630mm2, 800mm2
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Type
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Designation
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Applications
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VV
VLV
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Copper conductor, PVC insulated, PVC sheathed power cable
Aluminium conductor, PVC insulated, PVC sheathed power cable
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For laying indoors, in tunnel or cable trench, unable to bear external mechanical forces. Single core cable is not permissible to lay in magnetic duct.
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VY
VLY
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Copper conductor, PVC insulated, PE sheathed power cable
Aluminium conductor, PVC insulated, PE sheathed power cable
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VV22
VLV22
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Copper conductor, PVC insulated, steel tape armoured, PVC sheathed power cable
Aluminium conductor, PVC insulated, steel tape armoured, PVC sheathed power cable
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For laying indoors, in tunnel, in cable trench or direct in ground, able to bear external mechanical forces, but unable to bear large pulling force.
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VV23
VLV23
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Copper conductor, PVC insulated, steel tape armoured, PE sheathed power cable
Aluminium conductor, PVC insulated, steel tape armoured, PE sheathed power cable
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VV32
VLV32
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Copper conductor, PVC insulated, steel wire armoured, PVC sheathed power cable
Aluminium conductor, PVC insulated, steel wire armoured, PVC sheathed power cable
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For laying indoors, in tunnel, in cable trench or direct in ground, able to bear external mechanical forces, but unable to bear large pulling force.
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VV33
VLV33
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Copper conductor, PVC insulated, steel wire armoured, PE sheathed power cable
Aluminium conductor, PVC insulated, steel wire armoured, PE sheathed power cable
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Note: The armoured single core cables is only used for D.C. system. As for A.C. system, non-magnetic armour material should be applied.
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