A recurring theme on our forums is cable sizing. Now many installations are unique and require special consideration. However, a lot of the time things...

This morning I was explaining how differential protection works to a junior engineer. To give him something to read I opened up the NPAG (Network Protection...

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

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

While not as popular as it once was, frame leakage protection does still have some use in some circumstances.  In essence frame leakage is an earth fault...

Low voltage (LV) switchrooms are common across all industries and one of the more common spatial requirements which need to be designed into a project...

Visitors who like to type web address rather then click menus may be interested in how our URL structure works.

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...

Photovoltaic (PV) cells (sometimes called solar cells) convert solar energy into electrical energy.  Every year more and more PV systems are installed...

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