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Articles about main panel

Understanding Sub-Panels and Neutral Wires


Is it true that an uninsulated neutral is not allowed to be used with the power feed cable for a sub-panel? Electrical Panels with Neutral Wires and Ground Wires.


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What To Do When The Main Circuit Breaker Trips Off


How to Identify an Electrical Problem: Tripping Main Circuit Breaker or Blown Fuse, What to do About a Home Electrical Problem.


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How to Plan Electrical Circuits for a Home


I am concerned that my panel is getting overloaded, I have a 100 amp sub panel fed from a 200 amp panel: Factors that Help Determine Electrical Load of an Electrical Panel.


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The Process of an Electrical Service Upgrade


Oleg in Michigan asks: I am planning for a Home Electrical Service Upgrade: The Basic Procedure for the Electrical Service Upgrade, The Electricians Task of a Home Electrical Service Upgrade.


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How Should I Label Electric Service and Distribution Panels


John in California asks: How should I label the Main Meter Service Panel and the Service Distribution Panel with all the breakers for the home?


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Adding a New Circuit to the Main Panel for a Garage Panel


Mike in Florida asks: I have the electrical main coming into an exterior panel, and being back-fed into a 125 AMP breaker. This then flows through the panel itself and into a sub-panel just inside the building.


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Why a New 240 Volt Circuit Produces 120 Volts


Why is my 240 volt circuit only showing 120 volts? How to Correct Incorrect Circuit Voltage.


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Install New Wiring in a Main Panel


Jake in West Virginia asks: New commercial 200amp 1 phase breaker panel. With line power entering from the bottom.


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Adding a Conduit to a Main Panel


Joe in Texas asks: On a main panel for residential application would I need a Meyers hub when drilling my own hole in the side? It will be above a concentric knockout, and used for solar instillation.


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How to Ground a Panel for a Detached Shop


Installing a Panel and Ground System for a Shop: Factors that Determine the Type of Bonded Grounding System, Detailed Questions and Answers about Installing a Shop Panel and Bonded Ground System.


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Wire Size for a Home Electrical Service Panel


How to Size Wire for an Electrical Service Panel: What kind of wires do I need to get power to my home?


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What to do When the Panel Neutral Bar is Full


How to Expand the Capacity of the Neutral Terminal Bar in a Panel: If the terminal bar runs out of room then an additional terminal bar may be added.


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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


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200 Amp Electrical Service Upgrade Riser


How an Electrical Service Entrance Pipe is Typically Used for a Panel Upgrade – The rigid conduit should be solid from the weather head down to the electric meter enclosure or main service panel.


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