|
[问题探讨] 导线最大长度公式解读 |
点评
同一根电缆内,连续30分钟温度,相线和PE线相差无几吧。
| ||
|Archiver|手机版|小黑屋|《建筑电气》杂志官方论坛
( 蜀ICP备06020337号-1 )
GMT+8, 2025-6-27 06:31 , Processed in 0.078222 second(s), 28 queries .
Powered by Discuz! X3.5
© 2001-2025 Discuz! Team.