How Often Should Emergency Lights Be Tested? Monthly, Annual and the Log Book

A monthly functional test, an annual full-duration test and a log book that records both. How to do each one properly, and what the 2025 edition of BS 5266-1 added.
Fire Alarm Categories Explained: Which BS 5839 System Does Your Building Need?

BS 5839-1 defines eight fire alarm categories. What M, L1 to L5, P1 and P2 each mean, which buildings typically need which, and why the category is not your installer’s decision.
Fire Alarm and Emergency Lighting: What UK Business Premises Are Legally Required to Test

The Fire Safety Order does not tell you to test your fire alarm weekly. It does not mention a week, a month or a year anywhere. What it actually says is that the responsible person must ensure equipment is “subject to a suitable system of maintenance” and kept “in an efficient state, in efficient working […]