Flexible cord protection.

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True. But what about NEC 220.18 that requires 1.25% of motor full load current? 12A x 1.25 = 15A

This is one of those grey areas in the NEC. Even though the motor is UL listed, the cable is marginal to say the least and if you have any significant voltage drop you'll be in outright non-compliance. Personally I would have no issues with removing it and replacing it with the proper size.
 
This is one of those grey areas in the NEC. Even though the motor is UL listed, the cable is marginal to say the least and if you have any significant voltage drop you'll be in outright non-compliance. Personally I would have no issues with removing it and replacing it with the proper size.

Thanks Dale


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I‘ve already spoken to the client who is an Electrical Engineer w/PE in 7 states and also happens to be the AHJ at this facility.
HE KNOWS EXACTLY WHAT I AM TALKING ABOUT AND HAS AGREED: THE #16AWG VENDOR CORD IS UNDERSIZED PER NEC AND HAS TO GO!!

His only additional comment was “thanks Isaiah for pointing this out”
Then why are you asking here?
 
I‘ve already spoken to the client who is an Electrical Engineer w/PE in 7 states and also happens to be the AHJ at this facility.
HE KNOWS EXACTLY WHAT I AM TALKING ABOUT AND HAS AGREED: THE #16AWG VENDOR CORD IS UNDERSIZED PER NEC AND HAS TO GO!!

His only additional comment was “thanks Isaiah for pointing this out”
Making sure I understand what's going on. This is a cord that comes installed on a piece of equipment and this equipment has a listing from an approved listing company, and you and the AHJ have decided that the listing company missed a violation of the NEC which I believe does not cover equipment. Is that about right?
 
Making sure I understand what's going on. This is a cord that comes installed on a piece of equipment and this equipment has a listing from an approved listing company, and you and the AHJ have decided that the listing company missed a violation of the NEC which I believe does not cover equipment. Is that about right?

NEC 110.3B says to follow manufacturers instructions for listed equipment. NEC 90.1 also states the code is not a design guide. As ActionDave mentioned above this vendor went with the lowest possible cost for this cord/motor (submersible pump) and we’ve said it’s not good design. This particular plant puts safety first and reliability second. So even though it voids the Listing we’ve decided to go with a larger cable. Total cost for pump is under $300 and this is a $1.5Bn plant. They’re not worried about replacing it at cost if it fails.


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NEC 110.3B says to follow manufacturers instructions for listed equipment. NEC 90.1 also states the code is not a design guide.
Nor is it a manufacturing guide, not does it give instructions on how best to alter a manufactured piece of equipment or grant forgiveness when one does so.
As ActionDave mentioned above this vendor went with the lowest possible cost for this cord/motor (submersible pump) and we’ve said it’s not good design.
That's not what I said. What I said was the NEC sizes its conductors based on very conservative criteria because it doesn't know what loads are involved in every application that might be possible. Manufactureres size their conductors based on an actual known application and use.
This particular plant puts safety first and reliability second. Even though it voids the Listing we’ve decided to go with a larger cable. Total cost for pump is under $300 and this is a $1.5Bn plant. They’re not worried about replacing it at cost if it fails.


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I've spent my life in the trades, never once heard anyone say "We put safety second". If you've got a billion dollars to spend you can call the manufacturer and have a custom made unit.
 
Nor is it a manufacturing guide, not does it give instructions on how best to alter a manufactured piece of equipment or grant forgiveness when one does so.

That's not what I said. What I said was the NEC sizes its conductors based on very conservative criteria because it doesn't know what loads are involved in every application that might be possible. Manufactureres size their conductors based on an actual known application and use.

I've spent my life in the trades, never once heard anyone say "We put safety second". If you've got a billion dollars to spend you can call the manufacturer and have a custom made unit.

This issue is closed and the decision has been made! Thanks for your input and you were right the first time


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Isaiah appears intent on hearing only what he wants to hear and injecting his words into other people's mouths, despite what the person actually wrote. It also appears he's here only for validation of decisions he's already made. I wonder why he bothers. :cautious:
 
I don’t feel comfortable with it and I don’t care what the cheap-ass vendor says.
this vendor went with the lowest possible cost for this cord/motor (submersible pump) and we’ve said it’s not good design.
This begs the question: If this is a $1.5B plant and the client is not worried about paying twice, why are you even spec'ing/buying a "lowest possible cost" pump which you and the PE/AHJ client have determined is "not a good design" from a "cheap-ass" vendor?
 
This begs the question: If this is a $1.5B plant and the client is not worried about paying twice, why are you even spec'ing/buying a "lowest possible cost" pump which you and the PE/AHJ client have determined is "not a good design" from a "cheap-ass" vendor?

Who said I spec’d out this piece of junk?
I am the electrical inspector who protects this plant and I’m surrounded by slime-ball electrical subcontractors who have zero professional ethics
 
Who said I spec’d out this piece of junk?
I am the electrical inspector who protects this plant and I’m surrounded by slime-ball electrical subcontractors who have zero professional ethics
Now that is a difficult position, I feel for you.

ETA, ugh, you aren't going beyond your job in "protecting the plant", are you? I thought your job would be to inspect that the work meets the minimum code of the NEC. I'm not trying to fight with you Isaiah, but ... you seem to be reaching.
 
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