Nec questions

[Marqueszx]

So me and a co worker likes to bet about codes and see who is right
What are some good question about nec to ask ? Residential and commercial which ever

 

[petersonra]

So me and a co worker likes to bet about codes and see who is right
What are some good question about nec to ask ? Residential and commercial which ever

ask him what the maximum allowed resistance between earth and a cee is allowed to be.

 

[augie47]

If you go to Mike's homepage, signup, look in "free stuff" you will find "equation of the day"..pretty good exercise

 

[infinity]

Here's a few from some recent threads:

Q1. How many NM cables can you put through a 1" hole in a wood stud?
Q2. T or F: the GEC connection to a water pipe electrode must be on the street side of the water main.
Q3. What is the minimum burial depth for a GEC connected to a ground rod?
Q4. What is the minimum conductor size to an AC unit marked: MCA: 25 amps, MaxOCPD: 50 amps with MC cable?
Q5. What is the maximum length of a 3/8" fixture whip?
Bonus: Does a 3/8" FMC fixture whip to a lay-in style 2X4 fixture require a wire type EGC?

 

[tom baker]

Does MC cable require redheads? Yes or no.
These are true false
The acceptable way to test a GFCI is with a plug in tester?
A bored hole in a 2x4 stud is limited to 3 NM cables.
When bonding interior metal water piping, the bonding connection must be within 5 ft of the water pipe entrance to the building
A circuit breaker can never be double tapped
Service entrance conductors are protected against short circuit and ground faults by the main service disconnect

 

[petersonra]

Does MC cable require redheads? Yes or no.

If so, does it have to be red?

 

[RWC/NC.]

In what Code Article does it make reference to a "tenpenny nail" (?)

 

[infinity]

In what Code Article does it make reference to a "tenpenny nail" (?)

That's a good one.

 

[petersonra]

In what Code Article does it make reference to a "tenpenny nail" (?)

had to look that one up.

 

[ActionDave]

Ground screws required to be green. True or false?

 

[Little Bill]

True or false: You are not allowed to make splices in panels.

 

[I-learns]

Ground screws required to be green. True or false?

Ground screws on devices required to be green if I remember right. Not all grounding screws or bolts that fasten a ground lug. Though I do know about engineers requiring bolts for ground lugs to be painted green.

 

[goldstar]

I can't wait to see who's brave enough to answer ALL these posted questions and claim to be 100% correct !!!

 

[coffeebean]

I finally found the tenpenny nail reference. That is a good one!

 

[I-learns]

True or false? If you are in a jurisdiction getting ready to adopt the 2020 code you will soon need many more receptacles at kitchen islands (for safety reasons since the NEC is about safety) but you should also be looking forward to the 2023 code when all the sudden none will be required (of course for safety reasons as well).

 

[LarryFine]

True or false? If you are in a jurisdiction getting ready to adopt the 2020 code you will soon need many more receptacles at kitchen islands (for safety reasons since the NEC is about safety) but you should also be looking forward to the 2023 code when all the sudden none will be required (of course for safety reasons as well).

False. You only need be concerned with the code in effect at the time of permit approval.

You're certainly allowed to wire to any code that is not in conflict with the present code.

 

[I-learns]

False. You only need be concerned with the code in effect at the time of permit approval.

You're certainly allowed to wire to any code that is not in conflict with the present code.

But my statement was that from the perspective of someone who is in a state several years behind in adopting the newest code it is a little bit paradoxical to think that for safety reasons you’re going to need to install a bunch of new receptacles all the while when you might also be aware that the newer standard is being developed for next year where also supposedly for safety reasons none are going to be required. It shows that there’s an issue with the code’s development.

 

[Hv&Lv]

But my statement was that from the perspective of someone who is in a state several years behind in adopting the newest code it is a little bit paradoxical to think that for safety reasons you’re going to need to install a bunch of new receptacles all the while when you might also be aware that the newer standard is being developed for next year where also supposedly for safety reasons none are going to be required. It shows that there’s an issue with the code’s development.

Evolution…

 

[I-learns]

Yes it is evolution but it’s more like being someone who existed before evolution predicting that next year humans are going to evolve into something that is safer surrounded by lots of receptacles and instantly in 2023 they’re going to be safer surrounded by no receptacles