The mobile phone was born in 1973. They were the size of a brick and weighed a couple of kg, making them difficult to fit into your pocket. At a few thousand...

Collection of links to various places with useful motor information. I’ll try and return to the page every now and again to update it with any motor notes...

The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.

Electrical engineering has a multitude of laws and theorems. It is fair to say the Ohm's Law is one of the more widely known; it not the most known. Developed...

Fire resistant and fire retardant cable sheaths are design to resist combustion and limit the propagation of flames. Low smokes cables have a sheath designed...

Here’s list of some famous scientists. Deliberately short, with the aim to provide a quick memory jog or overview. If your looking for more detailed information...

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.

Anyone specifying or using electric motors should have a basic understanding how the insulation is related to temperature. Three classes of insulation...

This article gives an introduction to IEEE 485 method for the selection and calculation of battery capacity.

It's been a busy few months on different projects or busy couple of decades depending on how I look at it. I can say that on the odd (frequent) occasion...