In last month's “Code Basics” article, starting on page 56 of the September issue, we spent most of our time discussing Class 1 circuits. Now, it's time to switch gears and focus on Class 2 and 3.
The NEC distinguishes between surge arresters and transient voltage surge suppressors (TVSSs), yet both provide surge protection. What's the difference between them? Surge arresters generally apply to ...
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