The Di-Log DLCELLB gives reference advice and contains the essential details of your system.
The Regulatory Reform (Fire Safety) Order 2005 mandates that the designated ‘responsible person’ for a property must ensure that all fire safety systems, equipment, and devices are kept in proper working condition and well-maintained.
This refers to BS5266 Part 1 as the standard emergency lighting systems must meet. It mandates a thorough process for continuous checking, maintenance, and repair of all fire safety equipment regularly.