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There is no leakage in the distribution box of three-phase equipment in drinking water kitchen.
The distribution box of three-phase equipment in catering kitchen should have leakage protection.

1, three-phase three-wire 380V power supply for electrical equipment, and three-pole three-wire residual current protection device is selected.

2. The electrical equipment is powered by three-phase four-wire 380V power supply.

3, three-phase equipment and single-phase equipment * * * circuit should choose four-pole four-wire residual current protection device.

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