We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.

Most installations involve some form of lightning protection system which is connected to an earth electrode.  The function of the earth electrode is to...

Over recent years the Lithium Ion battery has become popular in applications requiring high power densities with small weight and footprint.  Today Lithium...

Variable frequency drives are widely used to control the speed of ac motors.  This note looks at the mechanisms which enable drive units to control the...

When selecting a cable, the performance of the cable under fault conditions is an important consideration. It is important that calculations be carried...

I have been thinking recently that there appears to be less professional integrity around than when I first started my career in electrical engineering...

This is the second post in a series of two on periodic electrical inspections. In the first post, I discussed how often inspections should be carried out...

I'm a fan of using manufacturers catalogues. There are two main reasons for this. Firstly, if your involved in the purchase of equipment, you will likely...

If you are working on a large plan, get the real coordinates [latitude, longitude] for two or more points and add them to the drawing. That way you can...

We've been sending out Newsletters on a regular basis for a few weeks now. To do this we have been using Google's Feedburner service. While Feedburner...