Mike Holt Enterprises

Mike Holt Enterprises Mike Holt Enterprises – Electrical exam preparation, CEU, & apprenticeship training. www.MikeHolt.com

Need electrical training solutions for yourself, company, or school? Let us help you with Electrical Exam Prep, CEUs, or training for your electrical apprenticeship program. We’ve been helping electrical professionals for almost 50 years.

Visit mikeholt.com/graphic to see today's daily graphic - new images posted daily. These images are extracted from Mike ...
01/02/2025

Visit mikeholt.com/graphic to see today's daily graphic - new images posted daily. These images are extracted from Mike Holt's Understanding the NEC Volume 1.

Becoming a Great Instructor Series 14 of 20Presentation Skills, Part 3- Politically correct. The importance of watching ...
01/01/2025

Becoming a Great Instructor Series 14 of 20
Presentation Skills, Part 3

- Politically correct. The importance of watching your language and not being offensive.

- Presentation duration. After years of presenting and teaching, we've discovered the magic length of a presentation before the audience needs a break.

- Talking Speed. There's a limited to how many words a minute the brain can absorb. The rate at which you talk, and the pauses in your presentation are important.

- Voice. Your voice communicates your authority, your competence, and your passion for your presentation.

A lot of great tips in this clip.

Watch the video and read the article by clicking the link below:
🔗 https://www.mikeholt.com/newsletters.php?action=display&letterID=2875

Are you an instructor looking to level up your training program?
We can help you build a stronger program, visit 🔗 MikeHolt.com/Instructors or call us at 888.632.2633. We would love to learn more about your program goals and help you find new solutions.

Check out this NEC photo! This is designed to put a NEC rule at your fingertips each week, remind you to work safely, an...
01/01/2025

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.

01/01/2025

Happy New Year from all of us at Mike Holt Enterprises! 🎉🕛 🎆

12/30/2024

The number of equipment grounding conductors (EGCs) permitted on a ground bar is based on the manufacturer instructions [110.3(B)] and in accordance with 110.14(A). My experience is that it's generally up to two conductors up to 10 AWG, but sometimes the instructions will allow three conductors. Check the ground bar terminal instructions.

AC and Refrigeration Equipment NameplateA hermetic refrigerator motor-compressor must have a nameplate that indicates (a...
12/27/2024

AC and Refrigeration Equipment Nameplate

A hermetic refrigerator motor-compressor must have a nameplate that indicates (at a minimum) the manufacturer’s name, trademark, or symbol and shows the phase, voltage, and frequency [440.4(A].

For multimotor air-conditioning equipment, the requirements are similar. But it must also have the minimum supply circuit conductor ampacity, the maximum rating of the branch-circuit short-circuit and ground-fault protective device, and short-circuit rating of the motor controllers or industrial control panel [440.4(B)].

Tubs and showers

Air-conditioning equipment is not permitted within a zone measured 3 ft horizontally and 8 ft vertically from the top of a bathtub rim or shower stall threshold [440.8].

Equipment grounding conductor

Outdoor portions of metal raceways on a roof using unthreaded fittings must contain an equipment grounding conductor (EGC) of the wire type [440.9].

Disconnecting means

If the air-conditioning disconnecting means is readily accessible to unqualified persons, the disconnect enclosure or hinged door that exposes energized parts when opened must require a tool to open or be capable of being locked [440.11].

A disconnect for air-conditioning equipment must be within sight and readily accessible from the air-conditioning equipment. It must also meet the required working space requirements of 110.26(A) [440.14].

The disconnect can be mounted on or within the equipment, but it cannot be on panels designed to allow access to internal wiring or where it obscures the equipment nameplate [440.14].

Click the link below to check out the newsletter related to this topic.

🔗 https://www.mikeholt.com/newsletters.php?action=display&letterID=2872

12/25/2024

May each candle of the menorah bring light, peace and happiness to your home.🕯️

Happy Hanukkah! 🕎

12/25/2024

Have you ever faced an EV equipment installation and been worried about upgrading the electrical service? A new change in the 2023 NEC section 220.70 allows energy management systems to limit the current of your electrical system so avoid the need for an upgrade!

To follow along with this video, you can download the FREE PDF from our newsletter on this topic. Click the link below:

🔗https://www.mikeholt.com/newsletters.php?action=display&letterID=2870

Want to learn more about the NEC? Mike's Understanding the NEC Complete Training Library is a powerful tool to learn the National
Electrical Code. Click the link below for additional options.

🔗www.MikeHolt.com/Code

12/25/2024

May God Bless you and your family on this blessed day.

One of our missions is supporting electrical apprenticeship training across the U.S.. We want to make it easy for traine...
12/23/2024

One of our missions is supporting electrical apprenticeship training across the U.S.. We want to make it easy for trainers and training directors to do what they do best, educate the next generation of electrical professionals.

Looking to improve the training at your organization or school? Visit www.MikeHolt.com/Apprenticeship to learn more about the ways we can help your company or school improve your curriculum. Or call us at 888.632.2633 and let us help you find new solutions.

"Everyone in the organization treats you like you are their best and most favorite client. Love working with Mike Holt personnel. There has never been an issue or request that has not been immediately handled, so much better that other publishing groups I have worked with in the past. My instructors love the focus on the code and my apprentices feel better about their state exams." – Kathy F.

Have you downloaded Mike Holt’s Toolbox app yet? It's amazing, and you'll love having the power at your fingertips! And ...
12/20/2024

Have you downloaded Mike Holt’s Toolbox app yet? It's amazing, and you'll love having the power at your fingertips! And it’s free!

Here's a highlight of the calculator features:

Circuit Calculator. Size a branch circuit or feeder circuit for residential and commercial, single- and three-phase loads.

Air-Conditioning Circuit Calculator. Size a branch circuit for residential and commercial, single- and three-phase a/c loads.

Electrical Heating Circuit Calculator. Size a branch circuit for residential and commercial, single- and three-phase heating load loads.

Motor Circuit Calculator. Size a branch circuit for residential and commercial, single- and three-phase motor loads.

Residential Service Calculator. Size the service for a dwelling unit.
Transformer Calculator. Size a primary and secondary conductors and protection for single- and three-phase loads.

In addition to the six calculators, the app gives you instant access to the following MikeHolt.com resources:

Continuing Education | Exam Preparation | Free Stuff | Graphic of the Day | Instructor Resources | Mike Holt Products | Newsletters | Question of the Day | Technical Question Forum | Videos

To read the full newsletter, click the link below.https://www.mikeholt.com/newsletters.php?action=display&letterID=2869

Address

3604 Parkway Boulevard, Ste 3
Leesburg, FL
34748

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Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 5pm

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Videos

Happy New Year from all of us at Mike Holt Enterprises! 🎉🕛 🎆

The number of equipment grounding conductors (EGCs) permitted on a ground bar is based on the manufacturer instructions [110.3(B)] and in accordance with 110.14(A).
The number of equipment grounding conductors (EGCs) permitted on a ground bar is based on the manufacturer instructions [110.3(B)] and in accordance with 110.14(A).

The number of equipment grounding conductors (EGCs) permitted on a ground bar is based on the manufacturer instructions [110.3(B)] and in accordance with 110.14(A). My experience is that it's generally up to two conductors up to 10 AWG, but sometimes the instructions will allow three conductors. Check the ground bar terminal instructions. #mikeholt #electricaltraining #electrician #electricaleducation #electricaltrade #necrequirements

The number of equipment grounding conductors (EGCs) permitted on a ground bar is based on the manufacturer instructions [110.3(B)] and in accordance with 110.14(A). My experience is that it's generally up to two conductors up to 10 AWG, but some times the instructions will allow three conductors. Check the ground bar terminal instructions. #mikeholt #electricaltraining #electrician #electricaleducation #electricaltrade #necrequirements

May each candle of the menorah bring light, peace and happiness to your home.🕯️ Happy Hanukkah! 🕎 #Hanukkah #Menorah

Energy Management Systems, 2023 NEC - [220.70]
Energy Management Systems, 2023 NEC - [220.70]

Have you ever faced an EV equipment installation and been worried about upgrading the electrical service? A new change in the 2023 NEC section 220.70 allows energy management systems to limit the current of your electrical system so avoid the need for an upgrade! To follow along with this video, you can download the FREE PDF from our newsletter on this topic. Click the link below: 🔗https://www.mikeholt.com/newsletters.php?action=display&letterID=2870 Want to learn more about the NEC? Mike's Understanding the NEC Complete Training Library is a powerful tool to learn the National Electrical Code. Click the link below for additional options. 🔗www.MikeHolt.com/Code #NationalElectricalCode #NEC #NECRequirements #NECCode #MikeHolt #MikeHoltEnterprises #Electrician #ElectricalTrade #ElectricalContractor #JourneymanElectrician #ElectricalInspector #Electricaltraining #ElectricalEducation

May God Bless you and your family on this blessed day.

The only time a bonding bushing/jumper is required for a metal raceway containing feeder/branch circuits is when the raceway contains 277V, 480V, or 480Y/277V circuits AND the raceway encounters oversized, concentric, or eccentric knockouts at an enclosure. See NEC 250.97 #mikeholt #electricaltraining #electrician #electricaleducation #electricaltrade #necrequirements

The only time a bonding bushing/jumper is required for a metal raceway containing feeder/branch circuits is when the raceway contains 277V, 480V, or 480Y/277V circuits AND the raceway encounters oversized, concentric, or eccentric knockouts at an enclosure. See NEC 250.97 #mikeholt #electricaltraining #electrician #electricaleducation #electricaltrade #necrequirements

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

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

Maximum Raceway Length? Except for elevators, the NEC does not limit the length of a raceway.
Maximum Raceway Length? Except for elevators, the NEC does not limit the length of a raceway.

Maximum Raceway Length? Except for elevators, the NEC does not limit the length of a raceway. For example, liquidtight flexible nonmetallic conduit is NOT limited to six feet in any run length [see 356.10(5)]. #mikeholt #electricaltraining #electrician #electricaleducation #electricaltrade #necrequirements

Maximum Raceway Length? Except for elevators, the NEC does not limit the length of a raceway. For example, liquidtight flexible nonmetallic conduit is NOT limited to six feet in any run length [see 356.10(5)]. #mikeholt #electricaltraining #electrician #electricaleducation #electricaltrade #necrequirements

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