Electrical Installation Design Guide: Calculations for Electricians and Designers provides step-by-step guidance on the design of electrical installations. The guide will be useful for apprentices and trainees carrying out the calculations necessary for a basic installation and has been fully updated to BS 7671:2018.

• Chapter 1: Design sequence
• Chapter 2: Simple installations and final circuits
• Chapter 3: Maximum demand and diversity
• Chapter 4: Selection of cables for current-carrying capacity
• Chapter 5: Voltage drop
• Chapter 6: Calculation of fault current
• Chapter 7: Shock protection
• Chapter 8: Protection against fault current
• Chapter 9: Calculations associated with testing
• Chapter 10: Impedance of copper and aluminium conductors
• Chapter 11: Harmonics
• Chapter 12: Protection against voltage disturbances
• Chapter 13: Busbar trunking
• Appendix A: Symbols
• Appendix B: Standard final circuits
• Appendix C: Avoidance of unintentional operation of circuit-breakers
• Appendix D: Further cable calculations
• Appendix E: Symbols from CENELEC report R064-003
• Appendix F: Equipment data