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GB 50057-2010 第4.2.1条 Code for Design Protection of Structures Against Lightning

Grounding device电气工程

GB 50057-2010 第4.2.1条

| **** | **Grounding device materials and minimum dimensions**: The grounding electrodes of hotel buildings shall use hot-dip galvanized steel. Round steel diameter not less than 10 mm; flat steel cross-section not less than 100 mm², thickness not less than 4 mm; angle steel thickness not less than 4 mm; steel pipe wall thickness not less than 3.5 mm. |

Other clauses of this standard

GB 50057-2010 第1.0.1条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第1.0.2条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第1.0.3条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第1.0.4条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第1.0.5条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第1.0.6条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第第4.2.1条条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第第4.2.1条条Code for Design of Lightning Protection of Buildings
GB 50057-2010 第第5.2.1条条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第2.0.1条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第2.0.2条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第2.0.3条Code for Design Protection of Structures Against Lightning

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