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GB 50057-2010 第2.0.6条 Code for Design Protection of Structures Against Lightning

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GB 50057-2010 第2.0.6条

| | **Surge Protective Device (SPD)**: A device used to limit transient overvoltages and discharge lightning currents; its nominal discharge current In value: Class I lightning protection ≥20kA (10/350μs), Class II lightning protection ≥10kA (8/20μs). |

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