Home › Standards › GB 50057-2010 › 第4.4.3条

GB 50057-2010 第4.4.3条 Code for Design Protection of Structures Against Lightning

Down conductor电气工程

GB 50057-2010 第4.4.3条

| **** | **(For Class III lightning protection buildings) There shall be no fewer than 2 dedicated down conductors, arranged evenly and symmetrically around the perimeter of the building and around the inner courtyard, with spacing calculated along the perimeter not exceeding 25 m.** |

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

Still have a specific question? Ask a MEP expert

12 hotel MEP experts online, answers cite standard clauses you can verify.

Ask free →

Engineering reference only — verify against project conditions and the latest codes.