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【Electrical Version】Daily Question 20171030

2017-10-30View Original

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In low-voltage distribution networks, the grounding resistance value of protective grounding should not exceed ( ). A、4Ω B、5Ω C、6Ω
Reply #22017-10-30
This post was last edited by tuzi1q on 2017-10-30 09:27. There is latency in Network A; multiple replies have been posted, please delete them.

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