Latest Discussions : Electrical & Lighting


03:45PM | 12/28/03
Member Since: 12/27/03
1 lifetime posts

Most of my wiring is updated, but I have a few light fixtures left on knob and tube. I was going to replace a light fixture, but I can't figure out which line is hot vs. neutral -- the wires both have the same colored loom.

I have a cheap voltage tester, and when I got it close to either wire (which are about an inch or two apart from each other), the device goes crazy -- I'm assuming the wires are too close for the tool to distinguish which on is hot.

Anyway, any tips on how to decide which wire is hot vs. neutral? I want to install my new light, but don't wan't reverse polarization issues.

Thanks for the help!

Tom O

01:19PM | 12/29/03
Member Since: 09/17/02
476 lifetime posts
Plug a 3 wire extension cord into a grounded 3 prong receptacle. Using a voltage tester, measure from the ground hole in the cord to each of your wires. the one that measures 120 volts or so is the hot one.

Use caution doing this as you will be exposing yourself to the possibility of a shock if you are careless.

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