How often installations are inspected is up to the owner of the installation, provided such durations do not exceed any regulatory maximums in force. ...

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...

It starts with me reading one of the Horrible History books with my son (Groovy Greeks). Arrows were mentioned which lead to the discussion of the bodkin...

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

A couple of months ago I came Microsoft's OneNote and downloaded the 60 day free trail. Since then I have been using it regularly and now have a full license...

Carrying out a protection system discrimination study is critical to ensure the correct functioning of  the electrical system in the event of faults. ...

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

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...

Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...

In a previous article I looked at the dc resistance of conductors and in this article we turn our attention to ac resistance. If you have not read the...