Baldor motor outlet box needed?

[ctaylo360860]

Have a couple questions about a class 1 division 2 motor and pump.

So they changed existing motor and pump seen in picture #1 to the motor and pump in pic#2

The existing motor had a ground lead that ran from j box into the sealed motor. The new one did not. I did not notice this until I got the conduits put back together and got ready to terminate….

As I was also looking for the wiring diagram the pump guys handed me the outlet box that they removed from the motor.

Question 1 - will the rigid conduit be a sufficient means of bonding ? or am I going to need to break everything back apart install the outlet box on the motor and get an egc to the terminal inside the outlet box 3” away from the jbox?

Question 2 - when the pump guy removed the the outlet box did he void any type of warranty on the motor?

Motor is 240 single phase 2 hp. When I spoke to Baldor the rep said the motor and outlet box are listed separately… he suggested the box go back on if it were to be sent in for warranty, but wouldn’t give direct answer if it being taken off would void it…

I have looked over 501.30 a and b and I don’t believe I meet the exceptions…

I also looked of 430.12(e) but i don’t beleice that the exception would apply here as well…


I am Hoping that this is a compliant install with out the outlet box going back on and running a egc 6” from j box to motor outlet box!?

I think installing the outlet box on the motor and running the egc would be a much safer install, and will pry end up being the method I chose to fix this but I wanted to learn something and find out if it was or wasn’t compliant..

Thanks in an advance I really appreciate all of you and your help!

 

[ctaylo360860]

reading into 250.118 I see that I can use rigid metal conduit as an equipment grounding conductor. I don't see anything in this section that that stops me from using rigid metal conduit as an equipment grounding conductor for this class1 division 2 motor. does anyone have any code sections they can point me to so i can further investigate if this is a compliant or non-compliant install.

other facts I left out were that this motor is fed by a 2 pole 20 amp breaker with 12 thhn.

 

[rbalex]

I would like to see the motor's nameplate. Since it is single-phaase, it is likely required to be identified for Division 1. That sets up several other requirements beyond bonding. See 501.125(B)(2).

 

[ptonsparky]

Someone worked really hard to get away from using a couple pieces flex approved for the area.

 

[Dsg319]

Someone worked really hard to get away from using a couple pieces flex approved for the area.

No kidding, I rarely see a motor hard piped in. Just think of the stress on the conduit termination point of the terminal box and fittings with the vibration.

 

[ctaylo360860]

I would like to see the motor's nameplate. Since it is single-phaase, it is likely required to be identified for Division 1. That sets up several other requirements beyond bonding. See 501.125(B)(2).

 

[ctaylo360860]

Someone worked really hard to get away from using a couple pieces flex approved for the area.

Liquid tight flexible metal conduit is what I thought about using to reinstall the raceway from j box to outlet box …

 

[ctaylo360860]

I would like to see the motor's nameplate. Since it is single-phaase, it is likely required to be identified for Division 1. That sets up several other requirements beyond bonding. See 501.125(B)(2).

This is the outlet box

 

[ctaylo360860]

Unless I have the area Misclassified…. The motors are inside a containment next to bulk fuel tanks

 

[ptonsparky]

Unless I have the area Misclassified…. The motors are inside a containment next to bulk fuel tanks

Gas, diesel or both?

 

[ctaylo360860]

Gas, diesel or both?

Both

 

[ptonsparky]

Liquid tight flexible metal conduit is what I thought about using to reinstall the raceway from j box to outlet box …

Depending on the classification, that would not be appropriate.
Layman terms for the right stuff would be deleted for vulgarity. IDR the proper term.

 

[ctaylo360860]

Looks like I need look into 515.4 or 515.5 to figure out my classification

 

[ctaylo360860]

. if Install outlet box back on the motor, then hard pipe it back to the outlet box I can run an egc and should be compliant, or are there mor violations then just my missing egc? Thanks for the input I appreciate the help from everyone!

 

[ptonsparky]

Looks like I need look into 515.4 or 515.5 to figure out my classification

FWIW, I was told someone higher up the chain should make that call.

 

[ctaylo360860]

FWIW, I was told someone higher up the chain should make that call.m

Are we talking engineer, or the ahj?

 

[ptonsparky]

AHJ would be my thoughts.

You are most likely correct but this may be a good place to CYA.

 

[ctaylo360860]

AHJ would be my thoughts.

You are most likely correct but this may be a good place to CYA.

Roger that. I have good relationship with ahj, so we will see what he thinks.

 

[don_resqcapt19]

Looks like I need look into 515.4 or 515.5 to figure out my classification

You need to see the classification documents that are required by 500.4. Area classification is not a DIY thing.

 

[ctaylo360860]

You need to see the classification documents that are required by 500.4. Area classification is not a DIY thing.

So the owner of the plant would need to provide an area classification drawing? So the materials and install methods of the NEC are used to design and construct the electrical system… i unfortunately am in house electrician in a rural area, and I’m sure the company I work for is not going to do that… I have never had any type of prints to work off of….