PSE&G wants me to fill out a load sheet for my electric service, even though there is existing service. They say since electric was off for over a year I have to fill out a load sheet...The property has three meters ( it is a two family). What do I look for as far as watts, amp, phase, existing load in Kw etc...

Wak:

Welcome to ECN Forums from one of the 'Jersey Guys'

As to your inquiry, the ESI for PS is a usual request. Basically, a 2 family with a 'house' panel you would take the 'calc loads for each apt, and the common areas and submit a total in KW.

Use the NEC load calcs within the '08 NEC for basic guides.

Have you spoke to the PSE&G wiring inspector? You do not have any 'area' of NJ in your profile.

I moved this to the general Discussion Area

John,
Thanks for moving this topic!

WAK;

As John has mentioned, contact the Utility Company and verify the request with a Service Planner.

Seems to me the POCO is requesting Load Calculations for this Existing Service, so as to verify the Existing Service Feeders (and maybe the Transformer too) will handle the peak Calculated Loads.
They (POCO) may think there has been some Remodeling done on the Property, which could affect the Peak Load; which is likely to occur in One Years' time.

An accurately compiled Load Calculation Database will include the Calculated Loads for both Tenants and the "House Panel".
NEC Article 220 contains the information.
Basically, the Loads will include:

a: 3 VA / Square Foot - General Lighting,
b: 1500 VA per Small Appliance Circuit,
c: Electric Cooking Appliances,
d: HVAC,
e: Electric Water Heating,
f: Laundry Equipment,
g: Electric Motors.

Wish there was more to include, but I rarely perform Residential Load Calculations!

Good luck!

-- Scott

Scott:

thanks for some additional details!!

This is a sample I found of a multifamily load calc that is based on the '08 NEC. It may or may not help, but it looks like it could give you the general gist of things to include along with some other stuff like the minimum neutral size, fault current and voltage drop calcs.

Multifamily Load calc

Kjay:

Thanks for that!!

Scott may want to consider putting that is the Tech Section.

Great suggestion!

New Post has been made at the Technical Reference area for this item under the topic:

Load Calculations Example-Multi Family Dwelling

*** Note: Clicking on the Link above will open that page in a new Window. ***

-- Scott

Scott..
Thanks for that!
Useful guide IMHO

Wak,


Welcome to the board from another Jersey guy. Though I am here less than I would like to be. When I worked in PS territory, we always had to fill out a PSI or a preliminary service inspection in order to get a meter pan and turn the service on. Though it has been a dozen or so years that I was out in the field. JCP&L also wants a typical layout when they go to hook up a new service for the first time. They will give you a "DR" number or "R" #. You give that to the AHJ when he sends in your cut-in card.