See attached sketch, part of this sketch is Figure 517.31(A) in NEC code book with the exception of fire pump ATS.
My understanding FP's ATS won't be part of Essential Electrical System in healthcare facility, correct?
So, what system does it belong to? Emergency system? I am asking because I want to know when calculating
the total essential load toward 150kVA threshold value, should I exclude the fire pump load in the sketch?
My understanding FP's ATS won't be part of Essential Electrical System in healthcare facility, correct?
So, what system does it belong to? Emergency system? I am asking because I want to know when calculating
the total essential load toward 150kVA threshold value, should I exclude the fire pump load in the sketch?