| Ⅰ Standard
GB12666.6B-90
Ⅱ
Application
The
product is fit for plastic insulated power cable under
AC voltage of 1-10KV, cables&wires for electrical
equipment under 450/750V and below, especially for wires
of electricity conveyance and
distribution apparatuses, control system, alert system
and fire control system in high temperature, flammable
and fire proof environment.
Ⅲ
Character
a)
Rated Voltage：
a、0.6/1-8.7/10KV
b、450/750V
c、300/500V
d、300/300V
b)
Rated work temperature ：70℃、90℃、150℃。
c)
Maximum temperature during short circuit(5s): 160℃, 250℃（to 1-a）.
d)
Lowest temperature during pavement:
0℃.
e)
Maximum bending radius：6, 10, 12,
or 15 times of the diameter of the cable
f)
Combustion
property:
i.
In flame temperature of 750-800℃，the cable can work normally within 90 minutes.
ii.
In environment stipulated in a, the
allowable currents are not lower than those of common cables.
g)
Other electrical, mechanical and physical
properties are all higher than common cables.
Ⅳ
Type
and Sizes
a)
Types in Form 1 are
examples of every sort.
Form 1
type |
rated voltage |
name |
application |
NH-VV
NH-VLV22 |
0.6/1KV |
PVC fiber mica and fluoroplastic complex insulated fireproof
power cable |
petroleum industry、chemical industry、metallurgy、power plant、power
distribution station、high edifice、subway、communication
station、nuclear industry、military industry、aeronautics、tunnel、high-tech、fire
control,etc.
|
NH-YJY
NH-YJLV22 |
8.7/10KV and
below |
crosslinked polythene or silance crosslinked polythene fiber
mica complex insulated fireproof power cable |
NH-KVV
NH-KVV22 |
450/750V |
PVC fiber mica complex insulated fireproof control cable |
NH-KVVR |
PVC fiber mica complex insulated fireproof control soft cable |
NH-KVVP2
NH-KVVRP |
PVC fiber mica complex insulated and shielded fireproof control soft cable |
NH-BV |
450/750V |
PVC fiber mica complex insulated fireproof wire |
power illuminating apparatuses and other electrical instruments
and meters which have fire proof requirement
in petroleum industry、chemical
industry、metallurgy、high edifice、scientific
research |
NH-BVR |
450/750V |
PVC fiber mica complex insulated fireproof soft
wire |
NH-BVV |
300/500V |
PVC fiber mica complex insulated fireproof cable |
type |
voltage |
quantity of cores |
section mm2 |
NH-VV NH-YJY
NH-VLV22 NH-YJLV22 |
0.6/1KV |
1 |
1.5-800 |
10-800 |
NH-VV NH-YJY
NH-VLV22 NH-YJLV22 |
2 |
1.5-185 |
4-185 |
NH-VV NH-YJY
NH-VLV22 NH-YJLV22 |
3 |
1.5-400 |
4-400 |
NH-VV NH-YJY
NH-VLV22 NH-YJLV22 |
3+1
3+2 4+1 |
4-300 |
NH-VV NH-YJY
NH-VLV22 NH-YJLV22 |
4
5 |
1.5-300 |
4-300 |
NH-YJV NH-YJLV22 |
8.7/10KV |
1 |
25-800 |
NH-YJV NH-YJLV22 |
3 |
25-400 |
NH-KVV |
450/750V |
2-14 |
4，6，10 |
2-61 |
0.75，1.0，1.5，2.5 |
NH-KVV22 NH-KVVP2 |
4-14 |
4，6，10 |
6-61 |
0.75，1.0，1.5，2.5 |
NH-KVVR NH-KVVP |
4-61 |
0.75，1.0，1.5，2.5 |
NH-BV |
450/750V |
1 |
1.5-400 |
NH-BVR |
450/750V |
1 |
1.5-70 |
NH-BVV |
300/500V |
1 |
0.75-10 |
2，3，4，5 |
1.5-35 |
Annotation：In form 1 and 2 are only
examples, each of which can be made fireproof.
Ⅴ
Structure
Sketch
Ⅵ
Technical
Character or Conditions
a)
In temperature of 750~800℃，and 1000V voltage，the 3A fuse won't melt within 90 minutes of combustion.
b)
Except conductors, armors and some special
material, all other materials are combustion proof and fireproof.
c)
Finished cables' resistance, pressure
resistance, loaded current and DC voltage resisrance, partial
discharge properties are equal to or refer to similar common
cables. | 
