The calculation of current in a three phase system has been brought up on our site feedback and is a discussion I seem to get involved in every now and...

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

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...

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

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...

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...

One of the fundamental requirements of an alternating current distribution systems it to have the ability to change the magnitude of voltages.  It is more...

If you are working on a large plan, get the real coordinates [latitude, longitude] for two or more points and add them to the drawing. That way you can...

The IEC publishes a series of documents and rules governing the preparation of documents, drawings and the referencing of equipment.   Depending on country...

If you have a great idea or invent something the last thing you want is someone to steal the idea. One of the things you can do is protect the intellectual...