Understanding the Importance of Grounding in Electrical Systems | Mike Holt Enterprises

Mike Holt discusses the importance of grounding in electrical systems, specifically focusing on requirement 250.4A2. He explains how a ground rod or electrode connects to the earth to provide grounding. Mike also mentions the use of a grounding electric conductor coming out of the meter can and going through an inter-system bond determination to connect to other systems like telephone cables. The grounding electrode helps clear faults and prevent electric shocks, ensuring safety in the system. Overall, the video emphasizes the significance of proper grounding for electrical safety.

[wizmickog]

THAT BOY AINT MIKE HOLT, that’s
“Miguel de Hólt” 🗿👨🏻

[TGUlricksen]

As I get older, the more I like Mike.

[solargod]

Mike Holt stopped by a house before going on vacation/airport. Good work

[longballer]

Mike is the the most chill man on earth

[stan]

Thank you Mr. HOLT, from Portland Oregon

[pepetorres]

Thank you Mike, I'm really liking these explanations on code....thank you again...

[dsfnemky]

There’s many reason to add a ground rod and potential issues from ungrounded systems, some of them even dangerous to people. Curios why you chose Lightning since it’s probably the easiest solved problem with ungrounded systems.

[ssl]

didn't recognize you with the hat, almost skipped the short

[kctyphoon]

Grounding insures everything burns up quickly instead of it slowly dissipating and possibly saving your equipment. 😊

[icevariable]

Believe it is also to create a zero volt reference point.

[jlsrr]

So when I’m on vacation in other countries standing in the shower that has a point of use hot water heater and no ground. Somehow I feel safer because there no path to ground. Am I correct? When I was younger the garage fridge would light me up if I touched it without having shoes on. 🤷

[mattfc]

But why is it bonded to neutral, and then the service disconnect also be bonded to neutral?

[mikegreene]

I bet you get a free bowl of soup with that hat...but it looks good on you.

[jakes.]

I've seen some really strange voltage situations in ungrounded homes.
Added ground rods - all fixed.

[what_is_even_that]

Lightning struck a tall pine tree about 30 feet from my electric motorized driveway gate and it completely smoked the circuit board that runs it and now I got to pay $350 for a new board. 😔

[marcw]

Grounding for lightning. Really, for something that blows up 4 foot diameter trees in less than a second. Do you really think lightning cares about your 4 gauge wire. That wire isn't even noticeable to lightning. The reason everything is grounded is because transformers are putting out voltage solely with respect to the secondary winding. Something, usually the center tap neutral is grounded, so there are not all these floating voltages that maybe could go through you when touch a wall plate and also open that metal door. So every exposed piece of metal is tied together at the same potential with respect to the earth.

[skidmark]

Sounds like what a shield does for a signal wire to keep out interference from high volage magnetic fields.

[BernardBouchard-qqkq]

That will promote lightning.Lightning come's from ground.The more root's the better lightning circut.

[ripmemes]

that is specifically incorrect. lightning suppression is not supposed to be bonded to the grounding system. Also a ground rod will actually stop your house from burning down if the resistance is low enough when you loose a neutral.

[henryframe]

Why do we bring a GEC to a transformer/separately derived system then?

I’ve been told the GEC requirement was added in the 1920s to protect against the loss of the GEC serving the utility’s pole - mounted transformer. In the case of theft, the 120/240 split phase system’s neutral would still be connected to 0V reference point.