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  • In order to open and close the circuit breaker operation is reliably completed, the operating mechanism should meet the following basic requirements: (1) has a sufficient operating power, i.e. to make the movable contact of the circuit breaker closing time division for motion, have to do the work; (2...
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  • Air switch is very important in low voltage distribution network and the power of one electrical drive system, which combines the control and protection functions in a variety of. In addition to complete and break the contact circuit, a short circuit or electrical equipment can still occur. Severe ov...
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  • Wiring the air switch: if there are three lines from the meter to the house large, red and blue three colors of flowers can be used with an air leakage protection switch do master control switch (A0), three additional switches are ordinary air control home lamp (A1), air conditioning (A2), socket (A3...
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  • Home circuit breaker trips generally three reasons, the first is overload, short-circuit the second, third, first leakage, overload is too much high-power electrical circuit breakers while with more than the rated current, it is estimated that you will not be counted, it is less a few to try. The sec...
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  • By direct contact of electrical shock hazards relatively large, causing serious consequences, so to use a higher sensitivity leakage circuit breakers, power tools, portable electrical equipment and temporary line, should be installed in the operating current of 30ma circuit, operation time leakage ci...
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