by Mike Morgan | Apr 24, 2021
A lost neutral occurs when the neutral wire of an electrical system becomes disconnected or damaged so that it can no longer carry current. The result of the lost neutral is that the two phases of the electrical system are now in series and being supplied by 240 volts.
by Mike Morgan | Apr 18, 2021
To test electrical receptacles, we can use multimeters, non-contact voltage detectors, three-light testers, circuit analyzers, etc. They each have their pros and cons which I discuss briefly in this post.
by Mike Morgan | Mar 27, 2021
A three-light outlet tester is a simple device designed to be plugged into an electrical receptacle and by illuminating certain of the three lights, it will indicate how the receptacle is wired.
by Mike Morgan | Dec 27, 2020
While we often hear the words “outlet”, “receptacle”, and “plug” used interchangeably, they actually have different meanings. So what’s the difference between the three?
by Mike Morgan | Nov 30, 2020
An open ground is when there is a three-prong receptacle with no equipment ground connected to it.
by Mike Morgan | Oct 31, 2020
A thermocouple is a device that measures temperature by generating a small voltage that is proportional to the temperature of the substance or object being measured. The device is made by joining two different metals together at one end.