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Electrical Wiring Safety and Home Inspections

How to Troubleshoot Home Electrical Wiring Problems: Testing Electric Circuit Wiring, Home Electrical Wiring Inspection, Upgrading Older Home Electrical Wiring.

Home Electrical Wiring Video

How to Wire a GFCI Outlet
without a Ground Wire

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Troubleshooting a Reverse Polarity Problem
Electrical Question: Why does my tester show that the neutral wire and the hot wire reversed?

Do you have any suggestions?

Background: Wes is a Homeowner in Lancaster, Pennsylvania.

Dave’s Reply:
Thanks for your electrical wiring question Wes.

Application: Troubleshooting a Reverse Polarity Wiring Problem.
Skill Level: Intermediate to Advanced – Best performed by a licensed electrical contractor or certified electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with hand tools and electrical troubleshooting skills.
Precaution: Identify the circuit, turn it OFF and then Tag it with a Note before performing any wiring or inspections.

Troubleshooting Outlet Circuit Wiring

More about Electrical Troubleshooting and Electrical Wiring

Troubleshoot Electrical Wiring

Electrical Testers for Wiring

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Guide to Electrical Wires and Cable

Home Electrical Safety

Home Electrical Safety

Electrical Safety Articles covering several topics of home electrical safety and Do-It-Yourself Electrical Safety.
Electrical Safety

The following may also be helpful for you:

Dave's Guide to Home Electrical Wiring:

» You Can Avoid Costly Mistakes! «

Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.
  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handy Women, and Electricians
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.

Learn more about Home Electrical Wiring
with my Online Video Course:
Basic Home Electrical Wiring by Example

Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

Electrical Tips to Help You Wire it Right

The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
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 that I use to easily Detect 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.

The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.

Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.

More articles about Electrical Safety, Electrical Troubleshooting and Home Electrical Wiring:
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FAQs Frequently Asked Questions and Comments

6 Responses to “Electrical Wiring Safety and Home Inspections”
  1. emmanuel says:

    how can i make connection on a four way circuit to feed 2 lights, originally wired with 2 wire cable all the switchs.

  2. Dave Rongey says:

    Hi Emmanuel – here are wiring diagrams that will help you:

  3. JC says:

    Will a Ground Fault Circuit Interrupter or Residual Current Device(termed in USA) help in making my home safer for electrical accidents?

  4. Dave Rongey says:

    A Ground Fault Circuit Interrupter will help prevent electrical shock in areas where required, such as bathroom outlets and kitchen counter top outlets and outdoor receptacles to name a few.
    Equally important are the AFCI or an Arc Fault Circuit Interrupters, which will help prevent fires when an arc is detected, and are required for new circuits in areas including bedrooms.
    Both the GFCI and AFCI require either a special circuit breaker or receptacle, and the circuit wiring must be appropriately configured as well.

  5. Vertice Green says:

    I purchased a home that required minor repairs. Among the repairs were replacing the lighting fixtures in the bathrooms. I purchased a new light fixture from Lowes. Each bathroom has two light fixtures. The first fixture has two black and white color lines, but the second fixture has only one of each line. After replacing the light fixtures and restoring the power only the second fixture works. There is no activity from the fixture with two lines. Please help me understand what have I wired incorrectly?

  6. Dave Rongey says:

    Hi Vertice,
    First, be sure the light bulb in the first light fixture is new or good.
    Next, make sure the wiring of the first light fixture is made where the wires are connected color to color, that is: the black wires together, and the whites wires together, and the same for the ground wires.
    Also be sure that one of the wires from the light fixture to the line wire splices has not slipped out of the wire connector, which is a very common and easy mistake to make, but very easy to fix.
    Enjoy your new lights,