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GB 50057-2010 第2.0.2条 Code for Design Protection of Structures Against Lightning

Terminology电气工程

GB 50057-2010 第2.0.2条

| | **Down conductor**: A conductor used to carry lightning current from the air-termination system to the grounding device, usually installed along the exterior wall of the building, with spacing not greater than 18 m (Class I lightning protection) or 25 m (Class II lightning protection). |

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2.0.3条Code for Design Protection of Structures Against Lightning
GB 50057-2010 第2.0.4条Code for Design Protection of Structures Against Lightning

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