Designing Buildings: Created page with "[https://www.bsria.com/uk/product/JDdKNn/illustrated_guide_to_electrical_building_services_3rd_edition_bg_322014_a15d25e1/ The Illustrated Guide to Electrical Building Services, ..."

2021-07-29T13:11:42Z

Created page with "[https://www.bsria.com/uk/product/JDdKNn/illustrated_guide_to_electrical_building_services_3rd_edition_bg_322014_a15d25e1/ The Illustrated Guide to Electrical Building Services, ..."

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[https://www.bsria.com/uk/product/JDdKNn/illustrated_guide_to_electrical_building_services_3rd_edition_bg_322014_a15d25e1/ The Illustrated Guide to Electrical Building Services, Third Edition (BG 32/2014)], by David Bleicher & Peter Tse, published by BSRIA in 2014, states; ‘An electric current is a flow of charged particles. In electrical systems in buildings, the charged particles are normally electrons, flowing in conductors such as cables. In order for a current to flow, a voltage must be applied and a complete electric circuit must exist.

‘Current is measured in amperes – normally shortened to amps or A. One amp of electric current equates to 6.25 million million million (6.25 × 10^18) electrons moving past a point in one second. The safe current carrying capacity of cables is generally measured in amps, and hence so are ratings of circuit protection devices, for example a 13 A fuse.’

--[[User:BSRIA|BSRIA]]

= Related articles on Designing Buildings Wiki =

* Ampere.
* Batten luminaires.
* BSRIA articles on Designing Buildings Wiki.
* BSRIA definitions.
* BSRIA.
* Electrical wiring.
* Electricity.
* Voltage.
* Watt.

[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Standards_/_measurements]]

Electric current - Revision history

Designing Buildings: Created page with "[https://www.bsria.com/uk/product/JDdKNn/illustrated_guide_to_electrical_building_services_3rd_edition_bg_322014_a15d25e1/ The Illustrated Guide to Electrical Building Services, ..."