Fire pump Code letter

B

binwork91

Senior Member
Location
new york
Occupation
electrical engineer
When sizing the fire pump OCPD, we use Table 430.7(B). My problem is that I cannot find the code letter in the submittal.


Can anyone provide a screenshot from any fire pump submittal that shows the code letter?

I know nameplate of fire pump must have this information, but it is not installed yet.
 
Look at this thread for an example

New Fire Pump Electrical Service

Hello all, I'm a electrical contractor that's doing my first fire pump job. I have never had the opportunity to do one before or even work on one in the past. Attached is the drawing provided to me. I'm concerned about a few things. 1- The service is done in (4-#1 cu wires) to a 400A CT...
forums.mikeholt.com
 
I recently looked for code letters for 25 HP 3-phase motors and found most of the standard motors had a code letter of "G", but most of the listed fire pump motors of the same size had a code letter of "F". However in both cases there were variations with one of the standard motors having a code letter of "M" and one of the fire pump motors having a code letter of "G".
You are going to need the data from the motor manufacturer or a picture of the nameplate to be sure.
 
augie47 said:
Look at this thread for an example

New Fire Pump Electrical Service

Hello all, I'm a electrical contractor that's doing my first fire pump job. I have never had the opportunity to do one before or even work on one in the past. Attached is the drawing provided to me. I'm concerned about a few things. 1- The service is done in (4-#1 cu wires) to a 400A CT...
forums.mikeholt.com
Click to expand...
Thank you. However, this one shows the nameplate. I only have the submittal, and the fire pump is not on site yet.
 
don_resqcapt19 said:
I recently looked for code letters for 25 HP 3-phase motors and found most of the standard motors had a code letter of "G", but most of the listed fire pump motors of the same size had a code letter of "F". However in both cases there were variations with one of the standard motors having a code letter of "M" and one of the fire pump motors having a code letter of "G".
You are going to need the data from the motor manufacturer or a picture of the nameplate to be sure.
Click to expand...
Is there any way to determine the code letter from the submittal, or does the submittal not provide the code letter?
 
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