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汽车电路断路的现象及原因是什么?

来源:http://www.jnrunao.com/ 日期:2021-08-26 发布人:runao
导线断开或接头松脱。保险烧断或电路断路器跳开。部件如开关、灯泡等内部断路。电阻极高,往往表现出与断路一样的症状。
The wire is disconnected or the connector is loose. The fuse burns out or the circuit breaker trips. Internal open circuit of components such as switches, bulbs, etc. The resistance is very high and often shows the same symptoms as an open circuit.
1、导线断开造成的断路往往是由于意外损坏或振动造成:损坏造成的断路一般较容易被观察到;振动造成的断路往往导线绝缘层还完整,所以不易查找。一般只能用测试仪器查到,这种断路很有可能是间断性的。接头松动也可能由振动或组装不当造成。
1. The open circuit caused by wire disconnection is often caused by accidental damage or vibration: the open circuit caused by damage is generally easy to be observed; The open circuit caused by vibration is often the conductor insulation layer is still complete, so it is not easy to find. Generally, it can only be found with test instruments. This kind of open circuit is likely to be intermittent. Loose joints can also be caused by vibration or improper assembly.
2、保险烧断和电路断路器跳开都表现为断路:这类断路是由于电路超负荷造成。此时,为了保护电路和部件,保险装置会主动切断电路。通过观察保险是否烧断可确定其好坏。这类断路往往是电路中短路或超负荷的症状。
2. Both fuse burnout and circuit breaker tripping are open circuit: this kind of open circuit is caused by circuit overload. At this time, in order to protect the circuit and components, the safety device will actively cut off the circuit. By observing whether the fuse is burnt out, its quality can be determined. This kind of open circuit is often a symptom of short circuit or overload in the circuit.
3、一些部件的正常耗损会造成部件(如灯泡)的内部断路(烧断):正常耗损也同样发生在其他长期使用后的部件上,如开关和电动机。但如果这类部件在较短时间内就耗损,你就应该寻找造成这些部件提前损坏的原因。电阻过高如同断路一样,因为过高的电阻使电流无法通过电路。电阻过高往往是由于接线端和地线接头的腐蚀造成的。
3. Normal wear and tear of some components will cause internal open circuit (burn out) of components (such as bulbs): normal wear and tear also occurs on other components after long-term use, such as switches and motors. However, if such parts are worn out in a short time, you should look for the reasons for the early damage of these parts. High resistance is like an open circuit because high resistance prevents current from passing through the circuit. High resistance is often caused by corrosion of terminals and ground connections.
此文关键词: 断路的现象及原因  

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