What is a fire risk assessment?
This is usually a written document that will identify what you need to do to prevent fires and keep people safe.
Who’s responsible for ensuring fire risk assessment are completed and reviewed?
You are the responsible person for fire safety in a business or other non-domestic premises if you’re
- An employer
- The owner
- The landlord
- An occupier
- Anyone else with control of the premises, for example a facilities manager, building manager, managing agent or risk assessor
For more information please visit https://www.gov.uk/workplace-fire-safety-your-responsibilities
How do I know what category of fire alarm I need?
Typically in new builds this is provided in the specification from the consultant or architect. For extensions/refurbishments or existing buildings this can usually be provided by insurance companies, local authorities or found in the latest copy of the fire risk assessment.
How is a conventional (4-wire) fire alarm system wired?
Conventional (4-wire) fire alarm systems are wired in radial circuits with a detection circuit for smoke, heat or manual call points typically with an active end of line installed in the last device of each circuit.
The sounders or bells plus any beacons, will require their own separate radial circuit and these are called the sounder circuits.
Please see diagram below
How is a Bi-Wire (2-wire) fire alarm system wired?
Bi-Wire (2-wire) fire alarm systems are also wired in radial circuits similar to the conventional (4 wire) systems. The only difference is that this newer technology allows you to wire the sounders and beacons on the same circuit as the rest of the smoke detection, heats and call points. This has been known to reduce cable and labor requirements by up to 50%. This type of system still has active end of lines.
See diagram below
How is an addressable system wired?
An addressable fire alarm system is wired in loops similar to a ring main. There is no need for active end of lines as each device has a unique number and built in short circuit isolators.
See diagram below
Does every type of fire alarm system need to be commissioned?
Yes every newly installed fire alarm system needs to be commissioned. Generally the commissioning certificate issued will last 6 months, after this period a fire alarm service and maintenance company will need to appointed to check the fire alarm for operation (typically every 6 months thereafter depending on the size of building).
Rexel have partnered with Eaton to offer commissioning* on all Eaton & Newlec Fire alarm systems.
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What is carbon monoxide?
Carbon monoxide (CO) is a colourless, tasteless and odourless gas that is produced when fossil fuels such as coal, oil, natural gas, LPG, charcoal and wood are not burned efficiently.
Where should I locate my carbon monoxide alarm?
When considering locating your CO Alarm, be aware that Carbon Monoxide has the same density as air and, therefore, distributes equally around a room. However, as CO is formed by a combustion process, the gas is likely to be hotter than the surrounding air and will be forced towards the ceiling. Detailed recommendations can be found in EN50292, a guide on selection, installation, use and maintenance for residential CO alarms.
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Ideally, an alarm should be fitted in every room that contains a fuel burning appliance and for additional safety, fit one in each bedroom.
Example Fuel burning Appliances:
- Gas stoves;
- Fireplaces, solid-fuel burning appliances;
- Water heaters;
- Central heating systems.
Even LPG gas appliances in caravans and boats are possible sources.
But even if you don’t have any of these potential carbon monoxide sources, you should still have an alarm. CO has been known to seep through the walls, floors, and ceilings of neighbouring homes.