如果你看到冒火花的、断裂的或者磨损的电线，或者闻到绝缘体烧焦的味道，在保险丝盒或者断路器断关闭电路。
If you see sparks or broken or frayed wires, or if you smell hot insulation, turn off the electricity at the main fuse box or circuit breaker.
它太黑暗进行，因此您将需要修复的左侧保险丝盒电路断路器。
It's too dark to proceed so you will need to fix the circuit breakers in the fuse box on the left.
电源供应具备适当的过载保险丝或断路器保护。
The electrical supply has the proper overload fuse or circuit breaker protection.
通常情况下的两种故障状态都不可能实现使用标准保险丝或断路器。
Typically both fault conditions cannot be accomplished using a standard fuse or circuit breaker.
这些防护装置包括附加的保护器件，以增强由常规的电路断路器和保险丝系统所提供的保护。
These include add-on devices for protection in addition to that afforded by conventional circuit-breaker and fuse systems.
他到他家中检查保险丝盒，但没有对断路器的跳闸。
He went to check the fuse box in his home, but none of the breakers were tripped.
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.
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.
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