To determine the power needed for a residential or commercial project, electrical contractors need to calculate the load list—a detailed list of the electrical load placed on a distribution system. This dictates the equipment and ratings used.
Calculating a residential load list requires adding the wattage rating of all lighting circuits, outlets, and permanent appliances, subtracting 10,000, multiplying by 40, adding 10,000, adding the wattage of permanent A/C or heating units (whichever is larger), then dividing the total number by 240.
If that doesn’t sound like math you can quickly calculate in your head, you’re not alone. Many electricians use load list worksheets or calculators to determine a load list during the design phase of a construction project.
While an electrical load list template simplifies determining the load capacity, it doesn’t solve challenges relating to selling, customizing, or managing contracts, dispatching service technicians, or providing superior customer service. For that, many electrical contractors turn to a comprehensive business solution like ServiceTitan electrician software.
Read on for an electrical load list worksheet you can download and customize, and details on how ServiceTitan helps electricians streamline their operations and better serve customers.
An electrical load list template, similar to an HVAC load calculator, helps an electrician determine commercial or residential electrical load calculation, according to National Electrical Code (NEC) load calculations. It’s typically formatted as a load calculation worksheet in Excel with blanks for:
Each Microsoft Excel sheet section is further broken down to perform precise calculations. The electrician will input all the project information, including square footage, quantities of appliances, and heating and air conditioning sources to calculate a total load in amps.
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