legato
Member
- Location
- Mountain View, CA
- Occupation
- Consulting Electrical Engineer
Hi All,
I'm involved what I understand to be a infrastructure upgrade type of job where an existing chiller system is being replaced with new.
The existing system is an "A" & "B" system and will be replaced with a rooftop chiller that I am going to say is roughly about the same in terms of connected load for argument sake.
I'd like to know if we are required to have the contractor do a fault study, coordination study, and arc flash as we are modifying an existing electrical distribution.
The existing MCC that serves the mechanical is an OLD GE board that I want to say was built / installed in the 60's.
Thanks in advance!
I'm involved what I understand to be a infrastructure upgrade type of job where an existing chiller system is being replaced with new.
The existing system is an "A" & "B" system and will be replaced with a rooftop chiller that I am going to say is roughly about the same in terms of connected load for argument sake.
I'd like to know if we are required to have the contractor do a fault study, coordination study, and arc flash as we are modifying an existing electrical distribution.
The existing MCC that serves the mechanical is an OLD GE board that I want to say was built / installed in the 60's.
Thanks in advance!