Jockey Pump tap

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binwork91

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new york
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electrical engineer
I tap a jockey pump at load side feeder of fire pump service switch.
Can the jockey pump tap conductor terminate in jockey pump controller? or I have to have a fuse/switch for jockey pump then feed jockey pump controller?
 
augie47

augie47

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Location
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I would think it would have to comply with the 240.21 tap rules.
 
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binwork91

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Location
new york
Occupation
electrical engineer
augie47 said:
I would think it would have to comply with the 240.21 tap rules.
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it is motor, I think it should be 430.28. they are similar.
Anyway, I just want to know if I need a fuse/switch for jockey pump. I think I don't need fuse/switch, I want to terminate tap conductor to the jockey pump controller, but my friend has different opinion.
 
augie47

augie47

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Tennessee
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State Electrical Inspector (Retired)
If your jockey pump controller has SCGF protection and you meet all the other tap requirements I would think you go supply it directly.
What is his reason for disagreement ?
 
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binwork91

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Location
new york
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electrical engineer
augie47 said:
If your jockey pump controller has SCGF protection and you meet all the other tap requirements I would think you go supply it directly.
What is his reason for disagreement ?
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I don't know if jockey pump controller has SCGF protection. is there a reason or code required jocky pump controller to has SCGF protection?

His reason is code said "shall terminate in a branch-circuit protective device". The line side of tap is not terminate in branch-circuit protective device, because the tap at feeder. And if load side of tap conductor terminate in fuse/switch. Then it comply with code. and controller is not branch-circuit protective device.



430.28 Feeder Taps. Feeder tap conductors shall have an
ampacity not less than that required by Part II, shall terminate
in a branch-circuit protective device, and, in addition,
shall meet one of the following requirements:
 
augie47

augie47

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Location
Tennessee
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State Electrical Inspector (Retired)
The motor would be required to have a SCGF protective device per 430.52. If that is part of your jockey controller and the conductors meet the other requirements of 430.28 I see no need for a additional device.
 
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