发布时间:2025-01-29 23:29:18
L:过载长延时保护;
S:断路短延时;
I:断路瞬时
G:接地故障保护
两段保护就是LI或LS,三段保护就是LSI,四段就是LSIG。
130平米三居室的简约风格案例全包只花13万雅居乐湖居笔记装修
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