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The Practice Of Thunder-proof Pressure Ring
- Jun 02, 2017 -

1. In the gb50057-2010 of the building Design code for Lightning Protection, 4.2.4 4th and 7th, the first category of mine-proof buildings are set up every six metres from within 30 metres, and no requirements are made for the second and third categories of mine-protection structures.
2. Civil Architecture Electrical Design Code jgj16-2008, 11.3.3 article 2nd and 11.4.3 requirements for category II and Category III mine-proof buildings, respectively, that the steel bars in the structural ring beams exceeding 45 m and 60 m shall be connected to a closed loop at three layers and shall be connected with the Lightning protection device.