Adding Sub-Panels to Main Panels
How to Understand Load Calculations When Adding Sub-Panels – Adding any panel or sub-panel requires careful planning, however this practice is commonplace in most commercial and industrial applications
Calculating Sub-Panel and Main Panel Load
Electrical Question: Can you have more than one sub panel box extend off the main panel.
- For Example:
- A Main Panel box to a sub-panel box and a 2nd sub-panel box off the 1st sub-panel box.
This electrical wiring question came from: Calvin, a Homeowner from Glendon, Alberta, Canada
See more about Home Wiring for Canada
Thanks for your electrical wiring question Calvin.
How to Understand Load Calculations When Adding Sub-Panels
- Yes, additional sub-panels may be added to existing main panels, and to an existing sub-panel as long as the connected electrical loads are fully identified so that the overall circuit load does not become overloaded.
- Adding any panel or sub-panel requires careful planning, however this practice is commonplace in most commercial and industrial applications, but again, all of the loads are carefully identified to ensure system integrity is maintained.
The Following links will assist you with Adding Sub-Panels:
House Wiring Circuits and Circuit Breakers
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This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester, [amazon.com], I use for the detection of Standard Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.
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