jockey pump plus fire pump supply side conductor tap

[hhsting]

Attached pictures I have incoming service conductor X tapped ahead of the service disconnect in switchboard enclosure. The supply conductor X lands in trough and it is tapped connected as shown to supply both jockey pump and fire pump.


The red circled tap in the trough from supply conductors is it allowed by NEC 2017?

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[augie47]

This was fairly well addressed in your thread in November:

Jockey pump and fire pump

Please see attached sketch it shows service conductor call it A tapped from the line side of the main switchboard six main service disconnects. The service conductor A then goes into trough where it is connected to conductor B which feed jockey pump controller service rated and the service...

forums.mikeholt.com

My comment today is the same as it was then:
The only problem I would have with it as drawn is, to me, a grey area and that is what I mentioned in Post #19:
695.4(A) Direct Connection. The supply conductors shall directly connect the power source to a listed fire pump controller, a listed combination fire pump controller and power transfer switch, or a listed fire pump power transfer switch.
Depending on how you made your tap to the jockey pump in the wireway would you possibly violate the "direct connection" ? By using a split bolt I;d see no problem, a polaris connector where you actually cut the conductor would be questionable to me but that's a field decision not one with which plans review should be concerned.


and I think Tom baker's post is the most relevant:

Perhaps you should get a PE who deals with fire pump systems to review the submittal. If a mistake is made on plan review there would be a significant liability.

 

[hhsting]

This was fairly well addressed in your thread in November:

Jockey pump and fire pump

Please see attached sketch it shows service conductor call it A tapped from the line side of the main switchboard six main service disconnects. The service conductor A then goes into trough where it is connected to conductor B which feed jockey pump controller service rated and the service...

forums.mikeholt.com

My comment today is the same as it was then:
The only problem I would have with it as drawn is, to me, a grey area and that is what I mentioned in Post #19:
695.4(A) Direct Connection. The supply conductors shall directly connect the power source to a listed fire pump controller, a listed combination fire pump controller and power transfer switch, or a listed fire pump power transfer switch.
Depending on how you made your tap to the jockey pump in the wireway would you possibly violate the "direct connection" ? By using a split bolt I;d see no problem, a polaris connector where you actually cut the conductor would be questionable to me but that's a field decision not one with which plans review should be concerned.


and I think Tom baker's post is the most relevant:

Perhaps you should get a PE who deals with fire pump systems to review the submittal. If a mistake is made on plan review there would be a significant liability.

There is no submittal. PE did stamp and sign the drawing not sure about if he or she is fire protection or not.

Anyways this thread is different from post #1 questions in link. I do Not have questions about configuration. I only have question about how the tap is made in the trough if its allowed or not per NEC 2017.

The post #1 does show supply conductors terminate on bus in trough and from bus the another supply conductors in trough one go to fire pump another goes to jockey pump. Would that violate direct connection?

It says direct connection Not continuous conductor? Should not be told to comply with direction connection?

 

[augie47]

It might be an AHJ call.
If I were making the call I would want the jockey pump tap to be installed in such a manner as to not interrupt the conductors to the fire pump such as using a split bolt or similar means but that is my read on the Code and might differ from others.
It is somewhat of a "wording" situation.