82问答网 > 单相电子式电能表过载能力含义

单相电子式电能表过载能力含义

2025-03-29 05:33:26
推荐回答（2个）
回答1：

过载能力指的是额定电流的6倍，也就是要按5A的6倍30A去算，而且过载也不能是长期的，长期要考虑换大些的表，否则容易计量不准或者烧坏

回答2：

不是。5（20）A
20/5=4，这是一只4倍表。最大也就20A。
20*220=4.4KW。超过4.4。都是厂家自己吹的，不受保护。

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