Standards 2019 Revision to BS 5839-6 British Standards (Fire Detection and Fire Alarm Systems for Buildings)


BS 5839-6:2019+A1:2020 states that the level of protection to occupants needs to be directly related to the fire risk. However, it does list three categories to describe the level of protection the systems provide. Where and how many alarms are installed will affect how quickly a fire is detected – generally the higher the Category, the higher the level of protection.


LD1 – High protection


All areas where a fire could start (apart from bathrooms, shower rooms and toilets) e.g. hallways, landings, living room, kitchen (heat alarm), bedrooms, airing/metering cupboards, loft, garage.


LD2 – Medium protection


Escape routes and high-risk areas, e.g. hallways, landings, living room, kitchen (heat alarm). Note: this is now the new minimum category for all rented properties and must include a heat alarm in the kitchen and a smoke alarm in principal habitable room(s).


LD3 – Minimum protection


Escape routes and circulation spaces, e.g. hallways and landings. Note: This minimum category now only applies to owner occupied bungalow, flat, single-storey unit or maisonette with no floor level above 4.5m from ground level or owner-occupied two-storey house.


LD1 LD2 LD3


By February 2021, all homes should have:


Scotland’s Fire & Carbon Monoxide Safety Regulations • All smoke and heat alarms should be interlinked


• Smoke alarms in every circulation space on each storey, such as hallways and landings


• Smoke alarms installed in the room most frequently used for general daytime living purposes


• Heat alarms installed in every kitchen


• Carbon Monoxide alarms to be fitted where there is a fuel burning appliance or flue


• This applies to ALL homeowners and landlords Carbon Monoxide Safety Standards


• Requires a BS EN 50291 CO alarm to be fitted when any new or replacement fuel appliance is installed. This covers any fuel burning appliance, including those that burn gas, oil, coal and wood. In Wales this also includes cooking appliances, In Scotland and Northern Ireland this excludes cookers. • Alarms can be mains or battery powered. Where battery powered alarms are used, the batteries should last for the lifetime of the alarm.


• CO alarms should be located in the room with the appliance, or if it is an enclosed boiler, just outside the enclosure. They should also be fitted in any room that has a flue running through it.


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Smoke Alarms | Electrical Accessories


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