| Chapter No |
Chapter Title |
Description |
| 1 | Scope and Object | Defines the purpose and scope of BS 7671, covering electrical installations in buildings, structures, and special locations. Establishes fundamental principles for safety and compliance. |
| 2 | Definitions | Provides key terminology and definitions used throughout the regulations, ensuring clarity and consistency in interpretation. |
| 3 | Assessment of General Characteristics | Outlines requirements for assessing installation conditions, external influences, supply characteristics, and user needs to ensure safe and effective electrical design. |
| 4 | Protection for Safety | Covers protective measures against electric shock, thermal effects, overcurrent, fault currents, and overvoltage. Includes requirements for earthing, bonding, and protective devices. |
| 5 | Selection and Erection of Equipment | Details the selection criteria and installation requirements for electrical equipment, including wiring systems, switchgear, enclosures, and environmental considerations. |
| 6 | Inspection and Testing | Defines procedures for verifying electrical installations, including initial verification, periodic inspection, and testing methods to ensure continued compliance and safety. |
| 7 | Special Installations or Locations | Provides additional requirements for specific environments such as bathrooms, agricultural locations, medical facilities, swimming pools, construction sites, and hazardous areas. |
| 8 | Prosumer's Low Voltage Electrical Installations | Introduced in Amendment 2, covering installations with energy generation and storage capabilities, including renewable energy sources, battery storage, and smart grids. |
| Appendices | Guidance and Reference | Contains tables, formulas, and additional guidance for compliance with BS 7671, including cable sizing, protective device selection, earthing arrangements, and model forms for documentation. |
