Ⅰ、Standard
GB12706-91 or
IEC60502（1988）
Ⅱ、Application
The
products fit for power conveyance or distribution
wires under AC voltage（U0/U）0.6/1KV
or below
Ⅲ、Character
a)
highest
work temperature of 70℃，tolerable
highest temperature during short circuit of 160 160℃
b)
environment
temperature over 0℃，bending
radius over 10 times the diameter of the cable
Annotation：power
cables with temperature toleration level of 90℃
and 120℃
are available.
Ⅳ、
Types
and Names
Types
in form 1
Form
1
|
Type
|
Name
|
|
VV VLV
|
PVC
insulated sleeve power cable
|
|
VV22 VLV22
|
PVC
insulated steel band armor and PVC sleeve power
cable
|
Ⅴ、
Size
Sizes
as form 2
Form
2
|
Type
|
quantity
of cores
|
section
mm2
|
|
VV
|
1
|
1.5~400
|
|
VLV
|
2.5~400
|
|
VV22
|
10~400
|
|
VLV22
|
10~400
|
|
VV
|
2
|
1.5~185
|
|
VLV
|
2.5~185
|
|
VV22
|
4~185
|
|
VLV22
|
4~185
|
|
VV
|
3
|
1.5~240
|
|
VLV
|
2.5~240
|
|
VV22
|
4~240
|
|
VLV22
|
4~240
|
|
VV
|
3
|
1.5~240
|
|
VLV
|
1.5~240
|
|
VV22
|
1.5~240
|
|
VLV22
|
2.5~240
|
|
VV
|
3+1
|
2.5~240
|
|
VLV
|
3+2
|
|
VV22
|
4+1
|
|
VLV22
|
5
|
3+1、3+2、4+1
cores cable's neutral core section as form 3
Form
3
|
section
|
|
main
core
|
neutral
core
|
|
4
|
2.5
|
|
6
|
4
|
|
10
|
6
|
|
16
|
10
|
|
25
|
16
|
|
35
|
16
|
|
50
|
25
|
|
70
|
35
|
|
95
|
50
|
|
120
|
70
|
|
150
|
70
|
|
185
|
95
|
|
240
|
120
|
Annotation：other
types such as VV32, VLV32,
VV33, VLV33
are available
Ⅵ、
Structure
Sketch
1、conductor
2、insulator
3、band 4、sleeve
5、armor
Ⅶ、
Technical
Characteristcs
1、circular
cores and multi-core cable, section below 35mm2
of circle shape，over 50mm2
of sector or semicircular shape.（3+1）cores
cable's neutral core of circle or ellipse，（3+2）cores
and（4+1）cores
cable's neutral core and protection core respectively
of circle, sector and circle. Quantity of cores as
form 4.
Form
4
|
section（mm2）
|
minimum
number of cores
|
|
circular
cores
|
ellipse
|
sector
|
|
copper
|
aluminum
|
copper
|
aluminum
|
|
1.5
|
1
|
-
|
-
|
-
|
-
|
|
2.5
|
1
|
-
|
-
|
-
|
-
|
|
4
|
1
|
-
|
-
|
-
|
-
|
|
6
|
1
|
-
|
-
|
-
|
-
|
|
10
|
7
|
-
|
-
|
-
|
-
|
|
16
|
7
|
-
|
-
|
-
|
-
|
|
25
|
7
|
-
|
-
|
-
|
-
|
|
35
|
7
|
6
|
6
|
