序 号
Serial number
|
项 目
Items
|
技术性能
Technical performances
|
1
|
线芯直流电阻(≤Ω/Km)
Core DC resistance |
见上表
See above table |
2
|
绝缘电阻(≥MΩ Km)
Insulating resistance |
见上表
See above table |
3
|
5min工频电压试验
5min power frequency voltage experiment |
0.66/1.14 |
3.7KV工频电压绝缘不击穿
3.7KV power frequency voltage insulation does not penetrate |
0.38/0.66 |
3KV工频电压绝缘不击穿
3KV power frequency voltage insulation does not penetrate |
0.3/0.5 |
2KV工频电压绝缘不击穿
2KV power frequency voltage insulation does not penetrate |
控制线芯Control core |
1.5KV工频电压绝缘不击穿
1.5KV power frequency voltage insulation does not penetrate |
4
|
热延伸试验
The heat extends the experiment |
≤175% |
5
|
单根垂直燃烧试验
Single wire burning test |
MT386 |
6
|
成束燃烧试验
Group burning test |
最大线芯截面积在50mm2及以上时 符合A类成束燃烧试验要求
Max. core sectional area more than 50mm2 conforms A kind group burning test |
7
|
最大线芯截面积在50mm2及以下时 符合B类成束燃烧试验要求
Max. core sectional area more than 50mm2 conforms B kind group burning test |