MikeHoltNEC

MikeHoltNEC is an electrical education channel from Mike Holt, whose company produces training for electricians. Most videos are based on the National Electrical Code, the rules for safe electrical installations in the United States.

The videos explain individual rules in the code, such as earthing and bonding, protection against electric shock, electric vehicle charging circuits and energy storage systems. There are also videos on electrical theory and on preparing for electricians’ exams. Many are filmed as panel discussions or classes, and some are long. The specific rules are American, so UK viewers should remember that the UK follows its own wiring regulations, BS 7671. Recent videos cover topics such as energy management systems and protection devices that cut the power when a fault could cause a shock. These are areas growing quickly as homes add solar panels and batteries.

Some highlights include:

An introduction to electrical theory, covering the basic ideas behind voltage, current and circuits.

A detailed look at neutral-to-earth voltage, why it appears and how it is dealt with in electrical systems.

The channel has around 138,000 subscribers.

MikeHoltNEC gives a real sense of how much thought goes into making electrical installations safe. It connects to building services engineering, electrical engineering and careers as an electrician, including apprenticeships. Even though the code is American, the principles behind earthing, protection and safe design apply everywhere.