This article introduces short circuit current test and the results of optical fiber composite ground wire (OPGW).

文章介绍了光纤复合架空地线短路电流试验及试验结果的分析。

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When the unit is plugged into an AC outlet it automatically self-tests, checks for correct polarity and tests the integrity of the equipment ground, i. e. the green wire in the branch circuit.

当单位自动地被塞住入ac出口它自检、检查对于正确极性和测试设备地面的正直，即。绿色导线在分支电路。

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Finally, it indicates the problems to which one should pay more attention when designing power and ground wire in Subscriber Circuit Board.

最后提出了用户电路板中印制板电源、地线布线设计时应注意的问题。

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That wire can ground a contact on the circuit board behind the light that triggers a function intended to allow the door to be opened with a remote button, bypassing all its security measures.

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Wire up your microcontroller to power and ground according to its circuit diagram.

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