Special loads and places should be selected according to its characteristics of leakage protector:
① hospitals in the installation of medical electrical equipment leakage protector should be rated leakage action current of 10mA, fast-acting leakage protector.
② Electrical equipment installed in wet places should be rated leakage current of 15-30mA, fast-acting leakage protector.
③ Installed in swimming pools, fountains, water playgrounds, bathrooms, lighting lines, should be rated leakage action current of 10mA, fast-acting leakage protector.
④ Working on metal objects, operating hand-held power tools or traveling lights, should be rated leakage action current of 10mA, fast-acting leakage protector.
⑤ Connecting the outdoor overhead lines of electrical equipment should be used shock voltage non-action type leakage protector.
6 With the total protection of the overhead line should be selected in the low sensitivity and delayed action of the leakage protector.