A cable size calculator designed for use by electricians, electrical designers and engineers to quickly size a single circuit, in accordance with BS 7671: 2008 (IET 17th Edition) requirements for electrical installations.

Cable and installation reference method selection is quick and simple ensuring that the correct current-carrying capacity data is used.

Appropriate correction factors are chosen based upon the installation parameters specified on the Installation tab.

Automatic voltage drop correction increases the size of the conductor ensuring that it meets with the maximum permissible voltage drop limits specified.

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If you have any problems please email me at stuart@cablecalculator.co.uk