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Question:

Electric gourd electrical needs what protection

Electric gourd electrical needs what protection

Answer:

Interlock on electrical circuit, absolutely prevent false operation; The mechanical interlock of the ground operating handle.
Raising limit protection to prevent the crane from exceeding the rising limit when the accident occurs; Short circuit and overload protection;
Limit is broken firearms, which can realize the dual protection, it is a mechanical protection, prevent the wire rope breakage, more serious damage reducer parts, 2 it is can prevent damage of mechanical damage to motor and circuit;

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