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

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...

Fault calculations are one of the most common types of calculation carried out during the design and analysis of electrical systems. These calculations...

The inventor of the first visible light-emitting diode makes history again this year as it begins to show customers a 40-watt replacement GE Energy Smart...

Recently I have seen a few interesting articles on viable cold fusion; the combining of atoms at room like temperatures to create boundless energy. Now...

Lead acid batteries are cost effect and reliable, making them suitable for many applications.This note examines topics of interest associated with the...

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 selecting a generator, there are inherent limits on the active and reactive power which can be delivered. Generators are normally sized for a certain...

The new standard IEC 61439 replaces the old 60439. Compared to the old standard, the new 61439 is a more clearly defined and takes into account the assembly...

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