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Topic: Generator Load Calculation

User: Rick Headlee, Location: London Ohio

Asked on: Thursday, April 21, 2011 at 11:34 am EDT
Answered on: Tuesday, May 14, 2024 at 4:28 am EDT

Question: Need to do a Load calculation for a electrical permit to install a generator customer already purchased a 17KW generator with 16 circuit sub panel City wants a load calc to continue Where can I find one on Mike holt website Thanks Rick

Mike Holt's Load Calculation Worksheet



Residential Load Calculation Worksheet

https://mikeholt.com/mojonewsarchive/electric-load-calculation-worksheet-residential


Commercial Load Calculation Worksheet

https://mikeholt.com/mojonewsarchive/electric-load-calculation-worksheet-for-commercial-jobs

Instructions for Using the Load Calculation Worksheet

1. Download and print the appropriate worksheet based on the type of building.
2. Fill in the details of the building, including its square footage, number of rooms, number of circuits, and other relevant information.3. Calculate the total electrical demand (load) for each room or area based on the applicable NEC (National Electrical Code) rules.
4. Sum up the loads from each room or area to determine the total electrical demand for the building.5. Compare the total electrical demand to the capacity of the generator and subpanel.


Additional Load Calculation Resources



NEC Article 220

https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=70


IEEE Standard 141-1993 (Recommended Practice for Electric Power Distribution for Industrial Plants)
: https://ieeexplore.ieee.org/document/488615* Electrical Load Calculation Tool: https://www.electrical4u.com/electrical-load-calculation/ Flag for review

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