This is how the latest edition (the 17th) is made up

1. Plan of the 17th Edition “Regs”
PART 3 PART 5 PART 7
PART 1 PART 4 PART 6
PART 2 APPENDICES
Assessment of Selection and Special
Requirements for Protection for Inspection and
DEFINITIONS General Erection of Installations or
safety safety Testing
Characteristics Equipment Locations
CHAPTER 11
Terminology and CHAPTER 31 CHAPTER 41 CHAPTER 51 CHAPTER 61 700 General British Standards
sense in which it Purpose, supplies Protection Initial 701 Bathrooms
Scope Common rules Statutory
is used against electric verification
and structure 702 Swimming regulations
shock pools etc Time/current
CHAPTER 12 CHAPTER 52 703 Saunas characteristics
Objects and CHAPTER 32 CHAPTER 62
Classification of CHAPTER 42 Selection and 704 Construction Current carrying
effects erection of Periodic
external Protection sites capacity for cables
wiring systems inspection and
influences against thermal 705 Agricultural External influences
CHAPTER 13 testing
effects 706 Conducting Model certificates
Fundamental
principles
CHAPTER 33 CHAPTER 53 Locations Harmonised
Compatibility Protection CHAPTER 63 708 Caravan colours
CHAPTER 43
isolation Certification Sites
Protection Current carrying
switching and reporting 709 Marinas capacity for busbar
against
CHAPTER 34 overcurrent control and 711 Exhibition Definitions – DC &
Maintainability monitoring show stands other systems
CHAPTER 44 712 Solar Protection of
Each chapter is further CHAPTER 54 Voltaic units conductors in
divided into
Protection parallel
CHAPTER 35 717 Mobile
SECTIONS; SUB- Safety services against voltage Earthing
Units Effects of harmonic
SECTIONS containing disturbances and arrangements currents on 3 phase
individual electromagnetic and protective 721 Caravans
Volt drop in
disturbances conductors 740 Temporary
CHAPTER 36 consumers
Continuity of installations, installations
service amusements, Measuring
CHAPTER 55 fairs etc Insulation
Other resistance in floors
equipment & walls
Measurement of
Earth fault loop
CHAPTER 56 impedance - -
Safety services Temperature