2017 ErJian construction engineering knowledge: the construction site temporary electricity distribution box and switch box use
1, distribution box and switch box should have a name, purpose, shunt tag and system wiring diagram.
2, distribution box and switch box should match the door lock, and personnel shall be responsible for.
3, distribution box and switch box should be regular inspection and maintenance.Inspection, maintenance personnel must be professional electrician.Inspection and maintenance must be in accordance with the provisions, wear and wear insulated shoes, gloves, electrical insulating tools must be used, and should do the inspection, maintenance work record.
4, distribution box and switch box for regular maintenance, inspection, it should be before the level of the corresponding power supply isolation switch power brake, and hung "no switching, someone work" blackout signs, it is strictly prohibited to charged.
5, distribution box and switch box must be operating in the following order:
1) sending operation with a total distribution box, distribution box and switch box;
2) the power sequence of operation is: the switch box to distribution box, distribution box.
Except emergency there is an electrical fault can be.
6, the construction site to stop operation more than 1 hour, dynamic power switch box should be locked.
7, switch box operators must comply with the provisions of this article specifications 3.2.3.
8, distribution box and switch box shall not put any sundry, and should be kept clean and tidy.
9, distribution box and switch box shall not be arbitrarily articulated other electrical equipment.
10, distribution box and switch box electrical configuration and wiring tinkering is forbidden.
Fuse melts replacement, it is forbidden to use is not in conformity with the original specifications of the melt instead.Leakage protector use every day should start before the leakage test button attempt at a time, do not continue to use the attempt is not normal.
11, distribution box and switch box into the line and the line is prohibited under external force, it is strictly prohibited and metal fracture sharp, strong corrosive medium contact with flammable explosive.