Mike Holt Circuit Sizing - Air-Conditioning Sizing air-conditioning circuits are really simple. Just read the nameplate and use the NEC Table 310.16 (2020 NEC) and 240.4(D) and 240.4(G), 240.6, and 440.6(B). | Mike Holt Enterprises
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Mike Holt Circuit Sizing - Air-Conditioning Sizing air-conditioni…
65.1K viewsMar 3, 2020
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The first time you’re called upon to size a conductor and overcurrent device for central air-conditioning and you look at the nameplate requirements that clearly state that a 10 AWG copper conductor and a 50A OCPD are required, it may contradict everything you’ve learned about small conductors. In fact, you may adamantly insist that 6 AWG is required by the Code and you’d be wrong! Learn why in this video on section 440.4(B) of the NEC... https://www.mikeholt.com/newsletters.php?action=display&l
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The first time you’re called upon to size a conductor and overcurrent …
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To determine what size feeder is needed to carry a certain amount of current, the temperature rating of the conductor and associated terminals must be taken into consideration. Factors that impact feeder sizing include conductor ampacity, equipment terminal temperature rating, continuous load factors, overcurrent protection requirements, conductor insulation temperature rating, ambient temperature corrections, and conductor bundling adjustment. At first glance all of this may seem a bit overwhel
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To determine what size feeder is needed to carry a certain amount …
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This video is a must see for any electrical professional, from the newbie who is just starting out to the seasoned electrician that just needs a refresher. Mike and his panel discuss how to use the NEC code book and how it is used in a simple way that everyone can understand. | Mike Holt Enterprises
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In this video, NEC expert Mike Holt explains how to size a grounding electrode conductor and why it doesn’t need to be larger than the minimum Code requirements… | Mike Holt Enterprises
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Check out this NEC photo! This is designed to put a NEC rule at your fingertips each week, remind you to work safely, and to use as a quick training tool for your team in your meetings, at lunch, or in the field – we’d also love to hear from you about this feature and how you’re using it! This photo is extracted from Mike Holt’s 2023 Understanding the NEC Complete Training Library, for more information visit mikeholt.com/code or call 888.632.2633. #MikeHoltEnterprises #MikeHolt #NationalElectric
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Check out this NEC photo! This is designed to put a NEC rule at you…
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Check out this NEC photo! This is designed to put a NEC rule at your fingertips each week, remind you to work safely, and to use as a quick training tool for your team in your meetings, at lunch, or in the field – we’d also love to hear from you about this feature and how you’re using it! This photo is extracted from Mike Holt’s 2023 Understanding the NEC Complete Training Library, for more information visit mikeholt.com/code or call 888.632.2633. #MikeHoltEnterprises #MikeHolt #NationalElectric
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Check out this NEC photo! This is designed to put a NEC rule at you…
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