which NEC section is single most important life and safety section

[hhsting]

AHJ often don’t have time due to staff shortage, too many jobs etc to review and go thru each item by item all sections in NEC and apply every code sections to plans but AHJ also don’t want accidents either. So AHJ often discuss amongst themself which is the single most important life and safety section that one can apply in NEC on plans and be on look out for and can avoid accidents.

I was wondering if anyone on here have any opinions and thoughts regarding single most important life and safety section that one need to apply in NEC on plans and avoid accidents?

 

[LarryFine]

250, Baby!

 

[480sparky]

90.1(A).

 

[Fred B]

90.1(A).

90.1(B)

 

[SSDriver]

680.23 A (3) Swimming pool underwater luminaire GFCI

 

[shortcircuit2]

210.8

 

[oldsparky52]

250, Baby!

That was my 1st thought, w/out grounding ...

210.8

But then, GFCI protection works even w/out grounding.

 

[fishin' electrician]

What good is 250 without 240?

 

[LarryFine]

But then, GFCI protection works even w/out grounding.

At the receptacle, that;s true, but it does require that the supply be grounded to function.

 

[electrofelon]

What good is 250 without 240?

Yeah I was going to say 240, over current protection.

 

[oldsparky52]

At the receptacle, that;s true, but it does require that the supply be grounded to function.

Or for there to be a 2nd fault if it's ungrounded? Just sayin.

 

[Meltric_South]

Working for a manufacturer I might say 110.3(B). But I don't think that's going to save you any time because instead of just knowing NEC you have to know every manufacturer's installation instructions and permitted uses.

 

[sameguy]

The one about the body having jurisdiction.

 

[petersonra]

At the receptacle, that;s true, but it does require that the supply be grounded to function.

gfci works fine on ungrounded supplies.

 

[Joe.B]

In Ca. I'd say California Article 89, specifically 89.108.4, and 89.108.9. When you get past the Ca stuff I'd say Article 110 covers a lot of important points that directly influence fire and life safety. Then of course Articles' 200, 210, 220, 225, 230, 240, and of course 250. And I'd say everything from 300 on is pretty important too... Yeah, sorry, that's the entire book. I don't think my answer is going to be that helpful.

 

[oldsparky52]

Or for there to be a 2nd fault if it's ungrounded?

I've been thinking about this a little and I want to change my answer. The GFCI works in the sense if it senses a current imbalance it trips, but it would be nearly impossible to have that current imbalance in an ungrounded system. A GFCI would work on an ungrounded system if someone/thing got between conductors of different circuits.

 

[LarryFine]

gfci works fine on ungrounded supplies.

How would it know that there is an accidental contact between a conductor and earth?