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

The term 'N+1' relates to redundancy and simply means that if you required 'N' items of equipment for something to work, you would have one additional...

The other day I was talking to a colleague who is a building services consultant.  Despite regularly specifying dry-type/cast resin transformers he was...

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...

We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.

When sizing cables nearly, everyone uses some form of software. This ranges from homespun spreadsheets to complex network analyses software. Each has its...

It wasn't so long ago I was telling someone that I don't use rules of thumb as most things are easily calculated anyhow.   As it turns out I last week...

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...

When selecting a cable, the performance of the cable under fault conditions is an important consideration. It is important that calculations be carried...

Motor starting and its associated problems are well-known to many people who have worked on large industrial processes. However, these things are, of course...