Generally, the lightning protection device of a building has three parts: a lightning receptor, a down conductor, and a grounding device. In the lightning protection design of the glass curtain wall, the building's these devices should be fully utilized, and the curtain wall vertical keel, horizontal keel and building lightning protection network should be connected to form a lightning protection whole, and the huge lightning energy obtained from the glass curtain wall Through the grounding system of the building, it is quickly transported to the underground to protect the glass curtain wall and buildings from lightning damage.
The cover of the parapet wall at the top of the glass curtain wall of the high-rise building is a well-established conductor that is artificially distributed along the top of the building's parapet wall and has a large electric field strength. The thunder and lightning pioneer was naturally attracted and was the site with the highest lightning strike rate. As a direct measure to prevent lightning strikes, the cover can be designed as a device that directly accepts lightning strikes and acts as a lightning receptor. Its role is to accept lightning current, and at the same time safely connect the lightning current with the building lightning protection network, and conduct it into the ground to achieve lightning protection.
The lightning receptor on the top of the glass wall of the high-rise building cannot prevent the side of the current from developing laterally. At present, the common practice to prevent side lightning strikes is to place a ring of equalizing rings on every three floors in the glass curtain wall of high-rise buildings above 30m, and to connect with the lightning protection system of the building lightning protection net and the glass curtain wall itself.
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