Description
Book SynopsisGuidance Note 6: Protection Against Overcurrent is a key guide to this important area of BS 7671. It is intended for all involved with specifying, designing, installing or verifying electrical installations and has been fully updated to BS 7671:2018:2022.
BS 7671:2018+A2:2022 incorporates changes from the first amendment, published in 2020, regarding Electric Vehicle Charging Installations to provide greater guidance on embracing changing technology within this sector. Additional changes within the second amendment include protection against thermal effects and fire caused by electrical equipment, protection against voltage disturbances and electromagnetic disturbances, and a new chapter on prosumer's low-voltage electrical installations covering energy efficiency measures, the interface with the smart grid, the management of electricity consumption, the management of renewable sources of electricity, and energy storage.
Table of Contents
- Cooperating organizations
- Acknowledgements
- Preface
- Introduction
- Chapter 1: The regulations concerning protection against overcurrent
- Chapter 2: Protection against overload
- Chapter 3: Protection against fault current
- Chapter 4: Determination of fault current
- Chapter 5: Equations for the calculation of short-circuit current
- Chapter 6: Equations for the calculation of earth fault current
- Chapter 7: Selection of conductor size
- Chapter 8: Prosumer's electrical installations (PEIs)
- Appendix A: Calculation of reactance
- Appendix B: Calculation of k for other temperatures
- Index
