Electrical Fundamentals - Protection against electric shock (1hr:13min:19sec)

توضیحات:

Visit http://www.MikeHolt.com/14code to explore Mike's complete range of 2014 NEC training products. For over 35 years Mike Holt Enterprises has specialized ...

لغات کلیدی:

electrical, fundamentals, theory, grounding and bonding, circuit, open, closed, loop, safety, basics, mike holt, NEC (Organization), Help

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