The Mike Holt Podcast

Receptacle Replacement, Without Ground Wire [406.4(D)(2), 2020 NEC]

406.(D)(2) Receptacle Replacement, Without Ground Wire – https://www.MikeHolt.com/code. So, you need to replace a receptacle and discover there’s no equipment ground. What are your options? What does the Code allow or require? The fact is that electricity has been coming into buildings for well over a century, and an equipment ground wasn’t always required. It’s only a matter of time before you come across this situation and listening to this podcast on section 406.4(D)(2) of the NEC will help you to know how to handle changing out a receptacle where there’s no equipment ground present

Raceways Exposed to Different Temperatures [300.7, 2020 NEC]

300.7 Raceways Exposed to Different Temperatures – https://www.MikeHolt.com/code. Where raceways are exposed to different temperatures, section 300.7 of the NEC requires us to take measures to prevent condensation inside the raceways. How this is accomplished, and when and where this rule applies, is the topic of this podcast.

PVC Expansion Fittings [352.44, 2020 NEC]

352.44 PVC Expansion Fittings – https://www.MikeHolt.com/code. Who doesn’t like PVC? It’s versatile, lightweight, cost-effective, and easy to install. Did you know that raceways expand and contract to some degree and PVC does much more than RMC, IMC, or EMT? Although sometimes overlooked, expansion fittings are required to accommodate this characteristic and the requirements in section 352.44 of the NEC are the topic of this podcast.

Purpose of the NEC [90.1, 2020 NEC]

90.1 Purpose of the NEC – https://www.MikeHolt.com/code. The National Electrical Code contains the rules and requirements for electrical installations, but why? What’s its true purpose? Find out in this podcast clip as we discuss Code section 90.1.

Plenum Space Wiring Methods [300.22, 2020 NEC]

300.22 Plenum Space Wiring Methods – https://www.MikeHolt.com/code. Nowhere is the risk of the spread of fire more apparent than in the spaces and ductwork that distribute environmental air, or the ductwork that provides different types of exhaust. The types of ducts, plenums, and the special wiring and electrical installation considerations contained within section 300.22 of the NEC are the topics of this podcast.

Neutral at Switch Locations [404.2(C), 2020 NEC]

404.2(C) Neutral at Switch Locations – https://www.MikeHolt.com/code. If you’re under the impression that all light switch locations are required to contain a neutral conductor, then you’ve been misinformed or maybe you haven’t read the Code. Learn the conditions where light switch locations may, or may not, require a neutral conductor in this podcast about section 404.2(C) in the NEC.

Motor Full-Load Current and Motor Nameplate Current Rating [430.6(A), 2020 NEC]

Motor circuits have special requirements that affect how the overcurrent protective device and conductors are sized and installed. So how do we size the conductors and protection? Motor full load current? Nameplate rating? What’s the difference? Find out in this podcast where we explain the motor full-load current ratings contained in Tables 430.248 and 430.250, and how they affect not only conductor sizing but also the overcurrent protection requirements of Table 430.52.

Marina Ground Fault Protection [555.35]

This podcast is an extract from Mike Holt’s Understanding the 2020 National Electrical Code Complete Training Library. For more information about this product visit https://www.MikeHolt.com/code or call 888.632.2633.

Marina and Boat Dock Leakage Current Measurement Device [555.35(B), 2020 NEC]

555.35(B) Marina and Boat Dock Leakage Current Measurement Device - https://www.MikeHolt.com/code. Electric shock drowning (ESD) is a frightening killer and anything that can be done to prevent it should be done. That is the intent of the change in 555.35(B) requiring a leakage current meter to be provided on site at docks and marinas to assist in the maintenance of shore power connections. This isn’t a solution to the problem but a commendable effort was made to keep the owners and users of docking facilities safe.

Marina and Boat Dock Bonding [555.13, 2020 NEC]

555.13 Marina and Boat Dock Bonding – https://www.MikeHolt.com/code. Increased awareness of the electric shock drowning hazards at docking facilities has prompted another group of changes in this Code cycle. New section 555.13 requires a bonding conductor from the panelboard to connect to all metal parts in contact with the water that are likely to become energized in and about boatyards, marinas.