Let’s take a look at what is happening on the other end of that equipment grounding conductor, and what it is that enables this conductor to effectively carry current at such a rate that it will instantaneously trip a circuit-breaker or fuse, in the event of a ground-fault. It is normal to assume that a conductor will carry current, but in the matter of fault-current it is important to know why an equipment grounding conductor is able to do its job.
The terms Grounding and Bonding are found throughout the NEC text, and while they are seemingly interchangeable terms, they are actually two distinct procedures when it comes to the National Electrical Code, as well as the installation of electrical equipment.
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