(1) the electric tools used should be insulated well. When using power tools in the construction site, it is necessary to take the installation of leakage protector, safety isolation transformer and other safety measures;

(2) use corner grinder, portable grinder to should wear protective glasses and grinding will Mars toward unmanned equipment side.

(3) using electric drill and should be the first to start after contact with the workpiece, drilling inclined hole should prevent sliding drilling, running is not allowed to use a hand directly to remove iron;

(4) the use of sand turbine should be started before reaching normal speed, then contact the workpiece. Grinding wheel protective cover should be installed in good condition;

(5) saw mill cut work should be to put stability using the grinding wheel, to prevent sawing up;

(6) using Dianchui, the operator should wear a helmet, wear insulating shoes, and the need to wear a mask and glasses.