Temporary electricity utilization must be configured according to Technical Specifications for Temporary Electricity Utilization on Construction Site, and technical measures for safe electricity utilization and electrical fire prevention measures should be improved. Installation, maintenance or dismantling of temporary electricity operation must be completed by professional electricians. All electrical equipment shall strictly follow the principle of "one machine, one brake, one leakage and one box". It is strictly forbidden to use one brake and multiple machines or connect them privately and pull them indiscriminately. TZS zero-connection protection system must be adopted in the power system with special neutral point directly grounded on the construction site, and the shell of electrical equipment must be connected with special protection zero line. Not in the same power supply system, some are grounded, and some are connected to zero.
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