Break Horsepower vs Nameplate for Service Calculation
Break Horsepower vs Nameplate for Service Calculation
(OP)
Hi there.
We are trying to right size our electrical service. We asked the mechanical engineer if there was any "fluff" in their pump and motor sizing. They said yes. For example, the calculated BHP on one pump is 23 bhp. They selected a 30hp motor (a 23% increase). We ere thinking we could use the BHP selections for our service calculations but for individual motor and pump wire and overcurrent protection we would use the nameplate ratings per the National Electrical code.
Any reason not to use the BHP in our service sizing calculations?
Thanks.
b
We are trying to right size our electrical service. We asked the mechanical engineer if there was any "fluff" in their pump and motor sizing. They said yes. For example, the calculated BHP on one pump is 23 bhp. They selected a 30hp motor (a 23% increase). We ere thinking we could use the BHP selections for our service calculations but for individual motor and pump wire and overcurrent protection we would use the nameplate ratings per the National Electrical code.
Any reason not to use the BHP in our service sizing calculations?
Thanks.
b






RE: Break Horsepower vs Nameplate for Service Calculation
Geez, do it right.
Oh, and by the way it would be Brake Horsepower.
RE: Break Horsepower vs Nameplate for Service Calculation
RE: Break Horsepower vs Nameplate for Service Calculation
But don't try to "Right Size" the service.
"Size it Right" according to the NEC.
Bill
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"Why not the best?"
Jimmy Carter