How to effectively prevent leakage damage when using manual electrical equipment?

How to effectively prevent leakage damage, first of all, we should choose regular electrical appliances and standardize the operation. When using manual appliances, wear insulating gloves, and do not operate with wet hands. Two, the power supply line to install leakage protector, leakage protector is normal work, testing once a month. Third, the electrical enclosure should be well grounded.