This means that all your appliances, devices, lights, etc should not exceed 19,200 watts at any given time in order to avoid an overload.
Since the recommendation is not to exceed 80% of the total capacity, that puts you at 19,200 watts. For example, if you have a 100-amp service with a 240 volts circuit, then your total capacity is 24,000 watts. These are two simplified formulas that can help you calculate not only the capacity of your entire electrical service, but also those of individual circuits. However, in order to mathematically do the calculation, you’ll need to understand the watts, volts and amps, as well as the relationship between them: Usually, it’s best if the load does not exceed 80% of your electrical service capacity. For safety reasons, it is always ideal to build in a margin of safety. Understand Watts, Volts & AmpsĪs mentioned above, the electrical load calculation means adding up the amperage of all your fixtures and appliances. You’ll also need to do a little bit of math to compare the total capacity against the load that will be placed on it. In order to determine what you need, there are several factors to consider, but you also need to understand some of the basics involved. The newer, modern homes have 200-amp services, with top end homes having 400-amp electrical service installed. The total capacity of your home’s electrical system is measured in amperage or Amps. This is used by all of your home’s circuits, as well as all outlets, appliances or lights connected to these circuits.Īnother important thing to know is the measurement. The term electrical load capacity is defined as the total amount of power that your main source of electricity provides for your home.
To understand how to calculate the electrical load, first you need to know what it refers to. If you live in an older house, chances are your existing service is really undersized considering the modern needs of a household. It helps you understand the electrical capacity of your house and also choose the appropriate electrical service.
Whether you’re moving into a new home or you’re planning a big remodeling project, an electrical load calculation is definitely an important step.
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