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Articles about National Electrical Code





How Many Receptacles and Lights does the Code Allow

By Dave Rongey

Ian in Canada asks: How many receptacles and lights does the code allow per 15 amp circuit?


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Does a GFCI Outlet Need to be Grounded?

By Dave Rongey

Ed in New Jersey asks: Does a GFCI Outlet need to be grounded?


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Should I Install a GFCI Circuit Breaker or a GFCI Outlet

By Dave Rongey

Lanny in Minnesota asks: Can a GFCI circuit breaker take the place of a GFCI Outlet? Would it be considered to meet NEC Code Requirements?


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Adding Electric Wiring to a Garage

By Dave Rongey

Del from Minnesota asks: I need a 50amp, 30amp, and 20amp circuit in my garage. Do I need more than one conduit for the electrical wires?


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Install New Wiring in a Main Panel

By Dave Rongey

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


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Location of a Main Service Disconnect

By Dave Rongey

Is a main electrical service panel required to have a main breaker or disconnect switch? What is the NEC code article number that states this?


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How Many Electrical Wires In a Junction Box

By Dave Rongey

How to Wire a Junction Box: Selecting a Junction Box for Electrical Wiring, The Basics of Electrical Junction Boxes, The number of wires that are allowed in a Junction Box.


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How to Avoid Damaging Electrical Cables Inside Walls

By Dave Rongey

Can wire locators accurately show where electrical wires are inside a wall? Methods of Home Electrical Circuit Wiring, Electric Wiring Inside Walls, How To Locate Electric Wires, Home Wiring Techniques.


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What is The Purpose of the Neutral Wire

By Dave Rongey

The Purpose of the Neutral Wire in Electrical Systems: What is the purpose of the neutral wire and the difference between the ground wire and the white neutral wire.


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Electrical Code for Garage GFI Outlets and Receptacles

By Dave Rongey

How to Plan and Installing Electrical Wiring for Garage Outlets and Lighting Circuits: Electrical Codes about GFCI protection for 15A and 20A, 125V receptacles in garages.


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How to Fix a Wiring Problem that Causes Electrical Trouble

By Dave Rongey

Should a white neutral wire have voltage when the circuit breaker is off? A multiwire circuit has been improperly installed, which is causing electrical problems within the home.


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Installing a Sub Panel for a Detached Building

By Dave Rongey

Do I need to run a ground wire for a 200 amp sub panel that is 200 feet away from the main panel? Grounding a Remote Sub Panel at a Detached Building.


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Kitchen Countertop Receptacles NEC 210-52

By Dave Rongey

What is the NEC Code for Kitchen Counter Top Outlets? The Electrical Code Requirements for Kitchen Counter top Receptacle Circuits.


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NEC Electrical Code for Re-Identifying Ungrounded Conductor

By Dave Rongey

How should I Identify Electrical Conductor Wiring? NEC Article 200.7 (C) Re-Identifying Ungrounded Neutral Conductors.


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What is the Electric Code for Installing a 220volt Receptacle

By Dave Rongey

How high should a 220volt receptacle box be above the floor? Examples where 220volt receptacles are installed in specific applications and the NEC Code.


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How to Ground a Panel for a Detached Shop

By Dave Rongey

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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