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The inference that 210.12B mitigates electrical fires
~CS~
~CS~
Myth or NEC
We have all heard someone swear "it's in the code, I just don't know where". People mistake something they were told by their first Journeyman for being a code requirement. Or something from a job spec years ago. What are some of the myths you have heard people swear we're code requirements?
As a first year apprentice, I was told the NEC required to label all j box covers in the field. I later found out it was a job spec.
As a first year apprentice, I was told the NEC required to label all j box covers in the field. I later found out it was a job spec.
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Two of the most common ones:
1) A J-Box every 100' of conduit
2) No splices in panels
1) A J-Box every 100' of conduit
2) No splices in panels
:thumbup: One of the most common urban myths passed around. And reinforced by inspectors
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Black, Red, Blue
Brown, Yellow, Orange and one electrician argued YBO was against the NEC it had to be BOY
Brown, Yellow, Orange and one electrician argued YBO was against the NEC it had to be BOY
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The state of WI actually has a "recommended" color code for 277/480 and 120/208V. Now, what "recommended" actually means, I guess that's up to you.
You can never load a circuit to more than 80%.
You can't ever have a breaker larger than the capacity of the wire it protects.
You are required to pre-twist all splices.
#14 is not allowed in commercial or industrial, except for controls.
You can't ever have a breaker larger than the capacity of the wire it protects.
You are required to pre-twist all splices.
#14 is not allowed in commercial or industrial, except for controls.
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Cannot put a panel within 6' of a "water source"........
If there is no metal rebar in your slab, you need to put a 20 length of 1/2" rebar in the footing before the pour and tie the ground wire to it.:jester:
2nd ground rod cannot be any further than 6' from the first.
Those were told to me by inspectors........
If there is no metal rebar in your slab, you need to put a 20 length of 1/2" rebar in the footing before the pour and tie the ground wire to it.:jester:
2nd ground rod cannot be any further than 6' from the first.
Those were told to me by inspectors........
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it'll make your palm hairy too :laughing:
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Yeah well why do I need glasses
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Ahhh, much easier to read.
In what situation would you run #14s in commercial or industrial? This is definetely something I thought was in the code. Maybe it's a local thing. All branch circuits we pull are at least #12
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Factoring total installation and lifetime operational costs I would guess that one is probably true. Ohms laws are great stuffs, but you can put easily twice as many fixtures onto one circuit with 277 v. Less wire to run.
note- BBQ, Wendon, Big John, et al, I said guess, it is highlighted. Google won't mind if you let them rest for a while....
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