Fundamental electrical engineering concepts and theory
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...
IEC 60287 "Calculation of the continuous current rating of cables (100% load factor)" is the International Standard which defines the procedures and equations...
Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...
The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.
Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...
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...
Electrical engineering is a field that covers a wide variety of sub-fields, including electricity and electronics. It is a field that goes back to the...
Most installations involve some form of lightning protection system which is connected to an earth electrode. The function of the earth electrode is to...
If you are wondering what happened to our cable notes, the short answer is that we have moved them to myCableEngineering.com. The "Knowledge Base" at...
The windings of many medium and small sized transformers are protected by restricted earth fault (REF) systems. The illustration shows the principal of...
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