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本帖最后由 闻见知行 于 2014-2-17 22:07 编辑
1.vent pipe.fans,etc. must not be connect to the LPS,because of lightning current flowing directly into the building.Place Air-termination instead.
2.Cable Tray should be connected grounding system every 30m.
3.Mesh size in the floor should be 5x5m,not 9mx9m.
4.Protect skylight with Air-terimation |
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