Electrical Installation Design Guide: Calculations for Electricians and Designers (Electrical Regulations)

The book provides step-by-step guidance on the design of electrical installations, from domestic installation final circuit design to fault level calculations for LV systems.

Amendment 3 publishes on 5 January 2015 and comes into effect on 1 July 2015. All new installations from this point must comply with Amendment 3 to BS 7671:2008.

Updated to include the new requirements in Amendment 3 to BS 7671:2008, the Electrical Installation Design Guide,/I> reflects important changes expected to:

• Definitions throughout the Regulations
• Earth fault loop impedances for all protective devices