Cable insulation is used to provide electrical separation between conductors of a cable. During the historical development of cables, numerous types...
IEC 61439 'Low-voltage switchgear and controlgear assemblies', specifies standard arrangements of switchboard (call forms of internal separation). The...
A battery consists of one or more cells, each of which use stored chemical energy to produce electrical energy, There are many types of cells and these...
Using software in our work is essential for most of us and we are becoming even more dependant on it's use. While software is a great asset, many times...
Estimating maximum demand is a topic frequently discussed. Working out how much power to allow for a building can be very subjective . Allowing too much...
The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.
A UPS is an uninterruptible power supply. It is a device which maintains a continuous supply of electrical power, even in the event of failure of the...
A frequent problem in fault calculations is the obtaining of equipment parameters. While it is always preferable to use the actual parameters of the equipment...
Power factor is the ratio between the real power (P in kW) and apparent power (S in kVA) drawn by an electrical load. The reactive power (Q in kVAr)...
Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...
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