Fire & CO Alarms
circulation space, there should be an equal or higher number of smoke detectors within the circulation space (Clause 10.2f)). Furthermore, CO detectors should not be installed in kitchens. Clause 21 of BS 5839-1 details the types of detectors recognised for use within non-domestic premises. Clause 21.2g) details where CO detectors may be reasonably used:
Any area in which the use of a heat detector would be acceptable, other than those areas where the principal fire hazard comprises flammable liquid resulting in rapid flaming fire, Rooms opening onto escape routes in Category L3 systems,
All escape routes within Category L3 and L4 systems, provided the CO detectors are used in conjunction with smoke detectors, Any other area where the fire hazard exists where test evidence shows that CO detectors offer adequate fire protection.
Conclusion
Care should be taken in the selection and use of CO detectors when used within fire detection and fire alarm systems. CO detectors may be combined with heat and smoke detection in multisensory devices. However, even in non-domestic premises, their use should be limited to those fires which are not rapidly flaming as they best operate where smouldering fires exist.
Whilst the CO detectors used for sensing carbon monoxide created by open fires, gas boilers and the like may be interconnected with a fire detection and fire alarm system in a dwelling (Grade D1 or D2 system), they are not to be used as a means of fire detection.
Safer homes Launched earlier this year, the Espire range of
Fire and CO Alarms from ESP is a comprehensive range of high performance fire and CO alarm products that has at its core quality, reliability and innovation. Suitable for Grade D1, Grade D2 and Grade F1 installations, the range comprises five alarm types - optical smoke alarms, heat alarms, smoke and heat alarms, Carbon Monoxide (CO) alarms and CO and heat alarms.
Suitable for installation in living areas, bedrooms or near combustion appliances, Espire CO alarms offer peace of mind with the backing of ESP’s 25 years of fire and security expertise. Espire’s CO alarms are engineered to provide early, reliable warnings. They utilise electrochemical sensors that detect even small increases in carbon monoxide levels and provide a pre-alarm visual alert before the full alarm is triggered. The sensors are tested and certified to BS EN 50291-1, ensuring adherence to the highest safety standards. The Espire CO Alarms are to be installed in accordance with BS EN 50292. Installers can choose from two power options to suit varying project requirements: • Powered by mains with a sealed tamper- proof 10-year lithium battery.
• Powered by a sealed tamper-proof 10-year lithium battery.
Each alarm features auto-testing, a 24-hour alarm memory and RF-link support for system- wide warning capabilities.
ewnews.co.uk
August 2025 electrical wholesaler | 29
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