The civil construction of water and electricity buried to which step is considered to be buried to the end of the start of installation

After the main body sealed the roof, all the pre-buried wires and pipes bottom box cleaning and dredging is completed (wires and pipes are required to be threaded, generally wire or nylon rope), lightning protection grounding shaking test is completed, drainage pre-buried holes lifting line positioning (if the upper and lower corresponding position deviation, need to be repaired), only then the end of the civil construction of the pre-buried water and electricity

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