One of the requirements to ensuring that everything works is to have equipment selected, manufactured and verified [tested] to IEC standards. Not all equipment...

Our cable sizing tool is one of the more popular tools on the site.  The tool enables cables to be sized in compliance with BS 7671 (the IEE Wiring Regulations...

If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...

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

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...

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 first of two posts on the resistance of conductors. In the next post I will look at the ac resistance, including skin effect and we deal with...

Using laser optical pulses the random number generator utilizes the time between arrival of random photos to generate the numbers, ensuring true accuracy...

When making adding a Note to our site we have a great online WYSIWYG editor and things are pretty simple.  However, if you prefer you can write, manage...

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