Johnny B.
Member
- Location
- Sandy Utah
- Occupation
- Electrical Engineer 1
Hello everyone,
I am doing a remodel for one tenant space, then the city requires that I do a load calculation for the whole service including all the other tenant meters. I use NEC 220.87 Determining Existing loads. I have about 5 meters on the the main service. I call the power company and ask them for the peak demand of each meter. They tell me, "None of the meters are demand meters so I can only give you the highest KWH" I am reading a few sources probably not reliable ones that are saying that the peak demand is the average of the highest kilowatt hour demand in a fifteen minute period. So can I take per say the highest kilowatt hours in the day, and convert to KW and call that peak demand? I am not sure since other sources are telling me peak demand is more instantaneous. Do I just need to go with the exception of NEC 220.87 and have someone go out there with a ammeter and have it recorded for 30 days?
I am doing a remodel for one tenant space, then the city requires that I do a load calculation for the whole service including all the other tenant meters. I use NEC 220.87 Determining Existing loads. I have about 5 meters on the the main service. I call the power company and ask them for the peak demand of each meter. They tell me, "None of the meters are demand meters so I can only give you the highest KWH" I am reading a few sources probably not reliable ones that are saying that the peak demand is the average of the highest kilowatt hour demand in a fifteen minute period. So can I take per say the highest kilowatt hours in the day, and convert to KW and call that peak demand? I am not sure since other sources are telling me peak demand is more instantaneous. Do I just need to go with the exception of NEC 220.87 and have someone go out there with a ammeter and have it recorded for 30 days?