This is the second post in a series of two on periodic electrical inspections. In the first post, I discussed how often inspections should be carried out...

When looking at the design of a lighting scheme it is useful to have an understanding on the nature of light itself and some of the basic theory associated...

In an earlier note on the site [Photovoltaic (PV) - Electrical Calculations], the theory of solar (PV) cell calculations was introduced.  In particular...

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...

A battery consists of one or more cells, each of which use stored chemical energy to produce electrical energy, There are many types of cells and these...

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

In the previous note we looked at the approach taken by the standard to the sizing of cables and illustrated this with an example.  We then looked at one...

Some colleagues had an issue earlier in the week on sizing conduits to be cast in concrete for some power cables . It became clear that none of us had...

Years ago I was told that you should always try to write the best report you can.  Many years later I still think on this as one of the better pieces of...