Tools & Supplies

DIY FAQs

How does a voltage tester work?

A non-contact voltage tester measures the difference in electrostatic charge between the person holding the tester and the tip. If you hold it near...

How can I tell if a socket or switch has a current?

The best way is with a voltage tester. If it blinks, then power is still flowing through the...

What are voltage testers?

It’s an inexpensive tool that tests for live current. It can save your life. To use a voltage tester, simply plug its leads into a receptacle,...

Do I need special tape for wiring?

Yes, you should use electrical...

Do you have something I can use to insulate and repair cords and wire with?

You can use heat-shrink tubing. It’s designed to fit something half its size in...

My extension cords are always getting tangled, is there anything I can use to store them?

There are a variety of cord storage reels...

Which color of wire nut do I need?

Check the package, it will tell you what size and how many wires each color of nut will...

What is the easiest way to test an outlet?

Use a receptacle analyzer. Leave the power on, but make sure nothing is plugged into any outlet on the circuit, and turn off all switches on the...

How do I use a wire nut?

Strip off about ½ inch of insulation from the wires you want to connect. Hold these wires next to each other and twist clockwise. Screw on the...

How do I test a switch to see if it is working?

Use a continuity tester. First, shut of the electricity going to the switch and remove it. Touch the tester leads to both of the switch's terminals....

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