Type

Name

Allplication

VV

Copper conductor, PVC insulated,

PVC sheathed electrical cable

For laying indoors, in tunnel or cable trench,

unable to bear external mechanical forces.

Single core cable in magnetic duct is not permissible.

VLV

Aluminium conductor, PVC insulated,

PVC sheathed electrical cable

VY

Copper conductor, PVC insulated,

PE sheathed electrical cable

VLY

Aluminium conductor, PVC insulated,

PE sheathed electrical cable

VV22

Copper conductor, PVC insulated,

steel tape armoured,

PVC sheathed electrical cable

For laying indoors, in tunnel or cable trench,

able to bear external mechanical forces,

but unable to bear large pulling force.

VLV22

Aluminium conductor, PVC insulated,

steel tape armoured,

PVC sheathed electrical cable

VV23

Copper conductor, PVC insulated,

steel tape armoured,

PE sheathed electrical cable

VLV23

Aluminium conductor, PVC insulated,

steel tape armoured,

PE sheathed electrical cable

VV32

Copper conductor, PVC insulated,

steel wire armoured,

PVC sheathed electrical cable

For laying indoors, in tunnel,

cable trench, well and direct buried.

Able to bear external mechanical forces

and determinate pulling force.

VLV32

Aluminium conductor, PVC insulated,

steel wire armoured,

PVC sheathed electrical cable

VV33

Copper conductor, PVC insulated,

steel wire armoured,

PVC sheathed electrical cable

VLV33

Aluminium conductor, PVC insulated,

steel wire armoured,

PVC sheathed electrical cable

Cross section mm2

Centre distance

Less than or equal to 185mm2

Twice of the cable diameter

Above 185mm2

90mm

Ambient air temperature(°C)

20

20

30

35

40

45

Rating factor

1.29

1.22

1.15

1.08

1.0

0.91

Soil temperature(°C)

20

20

30

35

40

Rating factor

1.04

1

0.96

0.92

0.87