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Electrical Installation Calculations: For compliance with BS 7671: 2001 (The Wiring Regulations), 3rd Edition

ISBN: 978-1-4051-5096-5
April 2008, Wiley-Blackwell
Electrical Installation Calculations: For compliance with BS 7671: 2001 (The Wiring Regulations), 3rd Edition (1405150963) cover image
This book provides guidance on how to carry out the calculations required for circuit designs in compliance with the Wiring Regulations. It has been updated to take account of changes introduced by BS 7671 : 2001 and Amendment 1 to the standard which included a new table of current-carrying capacities.

The book makes extensive use of worked examples with the minimum discussion of theory. Chapters cover:

? cross-sectional areas of circuit live conductors

? voltage drop under normal load conditions

? earth fault loop impedances

? protective conductor cross-sectional areas

? short circuit conditions

The final chapter combines all the calculations of the previous chapters, to enable the reader to achieve the complete design of a circuit.

Published on behalf of the Electrical Contractors' Association, the book filled a significant gap when it was first published. It will continue to be invaluable for all electrical contractors, as well as for plant engineers and students.

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Preface; Acknowledgements; Symbols; Definitions; Calculation of the cross-sectional areas of circuit live conductors; Calculation of voltage drop under normal load conditions; Calculation of earth fault loop impedance; Calculations concerning protective conductor cross-sectional areas; Calculations related to short circuit conditions; Combined examples; Appendix - the touch voltage concept; Index
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* updated to take account of the latest revisions to the Wiring Regulations, operative from January 2002
* makes extensive use of worked examples with the minimum discussion of theory
* published on behalf of the Electrical Contractors' Association, author of Blackwell's Handbook on the Wiring Regulations
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