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CoachThe increase in voltage from the main panel to the sub panel may be due to the resistance in the wires within the electrical system. As the current flows through the wires, there may be a voltage drop across the length of the wires, which can result in a slight increase in voltage at the sub panel. This phenomenon is known as voltage drop.
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What is the main power feed for a house?
The main power feed for a house is typically provided by the local utility company through overhead or underground electrical lines. This feed connects to the main electrical panel in the house, which distributes electricity to the various circuits and outlets in the home.
If you have 100 amps on the main switch and there is two swiches with a pin is this not then 200 amps?
No, having two switches with a pin does not increase the total amperage available. Each switch can control a portion of the total 100 amps coming from the main switch, but the total available amperage remains at 100 amps.
Does a sub panel need a ground conductor from main panel?
Yes, a subpanel must have a separate grounding conductor running back to the main panel to provide a safe path for electrical faults. This grounding conductor is in addition to the neutral conductor and helps prevent the possibility of electric shock and ensures proper operation of circuit protection devices in the event of a short circuit.
How many 50 amp breakers feeding 50 amp outlets can you install from a 125 amp main panel?
You can install a maximum of two 50 amp breakers feeding 50 amp outlets from a 125 amp main panel. Each 50 amp breaker is using half of the available amperage from the main panel.
What is the largest sub panel you can install off from a 60 amp main panel fed by 100 amp service?
You can install a 100 amp sub panel off a 60 amp main panel fed by 100 amp service. This allows for the sub panel to be adequately powered with headroom for future circuits or expansions. It is important to ensure the wire size from the main panel to the sub panel is sufficient to handle the load.
