Indirect contact with different places of electric shock, can cause different degrees of harm to the human body, so different places should be installed in different residual current circuit breaker (earth leakage switch). Here is how to choose the residual current circuit breaker.

To harm the place of easy electric shock, residual current circuit breaker with high sensitivity. The risk of electric shock in damp places is much larger than that in dry places. The operation current should be 15-30mA, and the operation time is within 0.1s. For electrical equipment in water, should be installed in the action current of 6-l0mA, the operating time of the leakage circuit breaker within US. For the operator must stand on a metal object or metal containers of electrical equipment, as long as the voltage is higher than 24V, should be installed in the action current of 15mA or less, the operating time of the leakage circuit breaker within US.

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