metallic shielding power cable
http://www.ahdqjt.com time: 11/20/10 08:36
it is used for power transmission on power lines of rated voltage 0.6/1kv or lower. it has strong resistant characters against electromagnetic interference, thunder strike and even electric potential, improving power supply quality. it is especially suitable to place with precision electronic devices such as computer center, space & aviation supervision center and intellectual building etc.
executive standard: gb/t12706-2002
type and description
type |
description |
|
cu |
al |
|
vvp |
vlvp |
power cable with cu/al core, pvc insulation, metallic shielding(steel tape armor), pvc sheath |
yjvp |
yjlvp |
power cable with cu/al core, xlpe insulation, metallic shielding(steel tape armor), pvc sheath |
specification
type |
core number |
nominal cross section area |
|
cu |
al |
||
vvp |
vlvp |
1 |
4~300 |
vvp |
vlvp |
2 |
4~185 |
3 |
4~300 |
||
3+1 |
|||
4 |
4~185 |
||
main technical parameter
- dc resistance of conductor at 20℃
- insulated resistance
no. |
performance |
pvc insulation |
xlpe insulation |
1 |
volume resistance ratio(20℃) under cable working temperature |
1013 |
-- |
2 |
insulation resistance constant(20℃) under cable working temperature |
36.7 |
-- |
- finished cable should endure a.c. voltage test of 3.5kv, ac 50hz for 5min without puncture
- fire resistance performance of fire resistance cable should meet testing requirement of category a or b stipulated in iec60331 or gb12666.6 standard
- flame retardant performance of flame retardant cable should meet testing requirement of category a or b or c stipulated in iec60330 or gb/t18380.3 standard.
：
：cables
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