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GB 50057-2010 第4.3.6条 Code for Design Protection of Structures Against Lightning

Grounding device电气工程

GB 50057-2010 第4.3.6条

| **** | **Grounding device connections**: Connections between grounding electrodes must be welded (overlap length: 6 times the diameter for round steel, 2 times the width for flat steel with welding on at least three sides), and corrosion protection must be applied. Bolted connections are not permitted (except at test points). |

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