How much do you really know about SPD’s? What is their purpose? How do they accomplish this purpose? How many might be required and where in the electrical system are they to be located? Do you need to install a Type 1 SPD, or Type 2, 3, or 4 and what defines these various “Types?” Discover the answers to all of these questions and more in this video on Article 242, where Mike and an expert panel breakdown everything you need to know about “Surge Protective Devices (SPDs)” and the theory behind
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Sizing wire and protection for AC equipment is based on the nameplate. Yes 10 AWG on 40A breaker is correct. Watch MikeHolt.com/AC to understand why! I bet the Electrosaurs will have heart-burn… | Mike Holt Enterprises
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GFCI protection is NOT required for HVAC equipment, and that includes heatpumps used air-conditioning and swimming pools and spas, see 210.8(F) Exception 2. #mikeholt #electricaltraining #electrician #electricaleducation #electricaltrade #necrequirements | Mike Holt Enterprises
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Unused openings on electrical equipment must be closed to afford protection substantially equivalent to the wall of the equipment. #electrican #electricalcontractor #mikeholt #sparkylife #electricalapprentice | Mike Holt Enterprises
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The circuit equipment grounding conductor is sized in accordance with NEC Table 250.122, base on the rating of the circuit overcurrent protection device. For example, the EGC for a 100A feeder would need to be 8 AWG copper or larger. | Mike Holt Enterprises
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