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

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...

Circuit breakers are switching devices whose primary function is to isolate parts of an electrical distribution system in the even of abnormal conditions...

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

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

Following on from my post on railway electrification voltages, I thought an introduction to traction substations would be a good idea. Traction substations...

Electrical notes are a collaborative collection of electrical engineering information and educational material. Any registered user can add content. ...

Gauss's Electrical law defines the relation between charge ("Positive" & "Negative") and electric field.  The law was initially formulated by Carl Friedrich...

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.

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...