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In three phase systems, the use of transformers with three windings (or legs) per side is common.  These three windings are often connected in delta or...

If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...

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

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

The inventor of the first visible light-emitting diode makes history again this year as it begins to show customers a 40-watt replacement GE Energy Smart...

myElectrical does not support or promote the use of copyrighted material without the copyright owner's consent. If you believe that material for which...

Our IEE cable sizing was wrote a few years ago and had become rough around the edges. I thought it was time to give the tool a service. Unfortunately when...

IEC 60287 "Calculation of the continuous current rating of cables (100% load factor)" is the International Standard which defines the procedures and equations...

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.