最好使用交流电源供电，并为设备安装保险丝或额定电流小于2安培的自动断路器，自动断路器还必须与其他负载电流电路分离。
It is recommended that AC power supplies to instruments be protected by fuses or automatic circuit breakers rated at not more than 2 Amperes, and must be separated from any load current circuits.
不再猜测或试错，当它涉及到找到正确的电路断路器供电到交流电源插座或照明灯具。
No more guessing or trial and error when it comes to locating the correct circuit breaker supplying power to an AC outlet or lighting fixture.
不再猜测或试错，当它涉及到找到正确的电路断路器供电到交流电源插座或照明灯具。
No more guessing or trial and error when it comes to locating the correct circuit breaker supplying power to an AC outlet or lighting fixture.
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