Lightning protection and grounding, is to protect the safety of the whole building, will not lead to the building as a whole by the impact of lightning strikes, equipotential connection is the main role of preventing leakage of electrical equipment, metal equipment charged, causing harm to the human body ----
Lightning protection and grounding practices are mainly the use of basic steel and natural soil connections, the use of building Rising columns to do lightning lead down, in the roof subarea laying lightning net, if it is a high-rise building, but also divided into lightning protection zoning, and at a certain height will be the building to turn around and laying equalizing ring ----
Equipotential connection is divided into the total equipotential and local equipotential, the total equipotential use of 40 × 4 galvanized flat steel in the building within the shell of the equipment (self grounding location, with BV wire lead to flat steel) and metal pipeline Entrance and other places to connect, flat steel concealed, in the joints using the hoop clamping pipe, and then BV wire to the flat steel. Most of the local equipotential in the machine room, control room, bathroom and so on, the connection method is the same, but to reserve the flat steel, and welded to the plate bar, the equipotential connection box installed on the wall ------
Most of the total, the equipotential connection should be connected to the building internal reinforcement network, and lead to the foundation, the use of the foundation reinforcing bar grounding ---
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