Surge arrestors are commonplace. But where are they required and what are the different types? Article 242 Overvoltage protection gives all the details.
This podcast is a summary of lectures that I give for Electrical Continuing Education based in Spokane WA, USA. If you would like the lecture notes for the podcasts, visit our website at www.inw-training.com and select Podcast in the menu items.
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NEMA Surge Protection Web Page
Code book information: Free Online Access at NFPA.ORG
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