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

A lot of our members work in countries where PPE (personal protective equipment) is regulated or they work for companies/organizations which take employee...

Traditionally generation of electricity has involved rotating machines to produce alternating sinusoidal voltage and current (a.c. systems). With the development...

It wasn't so long ago I was telling someone that I don't use rules of thumb as most things are easily calculated anyhow.   As it turns out I last week...

Modelica is an open source (free) software language for modelling complex systems. Having never used it before, I thought I would download a development...

When current flows within a wire, a magnetic field is created. The potion of this magnetic field perpendicular to the wire is called the magnetic flux...

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.

Cable insulation is used to provide electrical separation between conductors of  a cable.  During the historical development of cables, numerous types...

A single phase system is perhaps the most common type of system most people are familiar with. This is what people have in their homes and what appliances...

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...