What is SELV and PELV Circuits?
Editorial StaffSaturday, October 29, 2016
Application and arrangements of SELV and PELV circuits In an electrical circuit, SELV (Safety Extra-Low Voltage) and PELV (Protectiv...
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Showing posts with label BS7671. Show all posts
Showing posts with label BS7671. Show all posts
What is Earth Fault Loop Impedance?
Editorial StaffThursday, October 27, 2016
Source: City and Guilds What is Earth Fault Loop Impedance (EFL)? IEC defined Earth Fault Loop Impedance as The impedance of the eart...
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How to determine the size of earthing conductor?
Editorial StaffThursday, October 27, 2016
What is earthing conductor? BS 7671 defined earthing conductor as... A conductor which provides a conductive path, or part of the conduc...
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Earthing System According to IEC 60364 and BS 7671
Editorial StaffTuesday, October 25, 2016
In any medium or low voltage three-phase system there are three single voltages measured between each phase and a common point called the “n...
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