Emergency lighting. Emergency lighting of premises - Code of practice
BS 5266-1:2025
Document Status
Current
Supplement
Core Supplement
Series
BS
Abstract
Provides recommendations and guidance for the design, installation and wiring of electrical emergency lighting systems. Also considers the illumination needs for the safety of people in buildings during power supply failure to normal lighting systems. Covers emergency lighting systems providing assistance for evacuation during an emergency, as well as continuing to provide protection for occupants remaining in the building during an emergency, and enabling normal operations to continue when the supply for normal lighting fails. Also applies to lighting in areas with fixed seating.
History
Supersedes BS 5266-1:2016. Came into effect 31 October 2025. See Foreword for contractual and legal considerations.
ISBN
9780539316827
Subjects
- Building services
- Electrical services
- Lighting
- Emergency lighting
Publisher History
With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
Information
NBS
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
Accuris
We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.