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The calculation method varies slightly depending on your local regulations, but the general logic remains the same. 1. Categorize Your Loads Divide the total electrical load into functional groups: Fixed lighting for indoors and outdoors. Power Outlets: General-purpose socket outlets. Cooking Appliances: Ovens, hobs, and microwaves. HVAC: Air conditioning units and space heaters. Motors: Pumps, lifts, and industrial machinery. 2. Apply Diversity Factors
You rarely turn on every light, appliance, and motor in a building at the exact same time. Maximum demand calculation relies on two key principles:
Modern electronics (LEDs, computers) can create "dirty" power that increases the neutral current, affecting the total demand profile. Conclusion
Some equipment, like large motors, draws a massive spike of current when starting. This must be considered to prevent nuisance tripping.
Example: For domestic lighting, you might apply a diversity factor of . This means you assume only two-thirds of the lights will be on at once during peak times.
The probability that all loads will not be "on" simultaneously.
Add up the results from each category to find the . 4. The Formula
The calculation method varies slightly depending on your local regulations, but the general logic remains the same. 1. Categorize Your Loads Divide the total electrical load into functional groups: Fixed lighting for indoors and outdoors. Power Outlets: General-purpose socket outlets. Cooking Appliances: Ovens, hobs, and microwaves. HVAC: Air conditioning units and space heaters. Motors: Pumps, lifts, and industrial machinery. 2. Apply Diversity Factors
You rarely turn on every light, appliance, and motor in a building at the exact same time. Maximum demand calculation relies on two key principles:
Modern electronics (LEDs, computers) can create "dirty" power that increases the neutral current, affecting the total demand profile. Conclusion
Some equipment, like large motors, draws a massive spike of current when starting. This must be considered to prevent nuisance tripping.
Example: For domestic lighting, you might apply a diversity factor of . This means you assume only two-thirds of the lights will be on at once during peak times.
The probability that all loads will not be "on" simultaneously.
Add up the results from each category to find the . 4. The Formula
Do you have more questions? Learn more about the distance calculation in the documentation.