Fire Standards & Regulations
• Regulatory Reform (Fire Safety) Order
• Local Licensing Requirements
• BS 5839-6: 2013
• Building Regulations Document B
• LACORS – Fire Safety Guidance
Are you confused?
Fire Alarm Systems
There is no risk low enough to negate the need for some form of system
• Single household up to 4 storey – Grade D, Category LD3
• Shared House HMO up to 4 storey -
Grade D, LD3 + Kitchen, Lounge, cellar
• Shared House HMO 5 –6 storey -
Grade A, Category LD2 + all risk rooms
Fire Alarm Systems
• Bedsit HMO up to 2 storey – mixed system Grade D, Category LD2 in common areas
+ heat alarm in bedsits.
Grade D alarm in each bedsit
• Bedsit HMO 3 to 6 storey – mixed system Grade A, Category LD2 in common areas
+ heat alarm in bedsits.
Grade D alarm in each bedsit
Fire Alarm Systems
• 2 storey house converted to flats, not to
Building Regs – mixed system Grade D, Category LD2 in common areas
+ heat alarm in entrance to flat Grade D, Category LD3 in each flat
• 3 - 6 storey house converted to flats, not
to Building Regs – mixed system Grade A, Category LD2 in common areas
+ heat alarm in entrance to flat.
Grade D, Category LD3 in each flat
BS 5839-6:2013 – What is it?
• Guidance for selection, siting
& installation of fire alarm systems for dwellings
• The ‘Best Practice’ guide
• Building Regulations & other guidance based on this
standard
Grades & Category
• Grade of system - the type of system to be installed...
Battery, Mains only, Mains with back-up etc
• Category of system - the extent of the system...
The number of alarms installed & where
Grades of system
• Grade A – similar to commercial type fire alarm systems
Mains power supply
Sounder circuit Detector circuit
Manual Call Point circuit
All circuits at 24VDC in fire resistant cable
Central control panel with zoning
Grades of system
• Grade D - mains smoke/heat alarms with an integral standby supply
Mains power supply
Standard PVC cable
Rechargeable cells
Rechargeable cells
OR OR
PP3 BatteryPP3 BatteryCategories of system
• LD3 – a system incorporating
detectors in all circulation spaces that form part of the escape routes from the dwelling.
• Hallways, Landings
• Open Plan – Lounges, Sitting Room
Hallway Landing
Category LD3
Optical or Multi-Sensor
Categories of system
• LD2 – a system incorporating
detectors in all circulation spaces that form part of the escape routes from the dwelling, and in all
specified rooms and areas that
present a high fire risk to occupants.
• Same as LD3 plus high risk rooms e.g
Living Room & Kitchen
Category LD2
Optical or Multi-Sensor
Heat Ionisation, Optical or Multi-Sensor
Hallway Kitchen
Living Room
Landing
Mixed System – Grade D
Flat 3
Flat 1 Flat 2
Flat 4 Escape
Route
Escape Route
Separate System in each
flat
Heat alarms connected to escape route
system
Smoke alarms in escape route
Mixed System – Grade A & D
Separate Grade D alarm system in each dwelling
Grade A system – smoke detectors + heat detector in each
dwelling
The problem with Hard-wiring
Smoke alarm on landing
Smoke alarm in hallway
Mains Power Supply
Smoke alarm in hallway
RF interconnect
Smoke alarm on landing
Ground floor light pendant 1st floor light pendant
No cables & trunking
Radio signal interconnects the system
RadioLINK Alarm Controller
• Test, Locate & Silence from one button
• Fire or CO indicator to easily identify
source of alarm
• Memory feature
• Engineers Mode for
interrogation
Other Applications
Relay to trigger other devices
• Warden Call Systems
• Strobe light
• Sounder
• Door closer/opener
• Panel system
• Smoke vent
Switched Input Module to activate
alarms from a sprinkler system
Europe’s Leader in Residential Fire + Gas Detection
Ei Electronics, Shannon, Ireland
Aico Ltd is a wholly owned subsidiary of Ei Electronics
Promoting professional fire alarm system installation in dwellings with
Made in Ireland
The Aico Fire Products Trained
Installer Scheme
All combustion processes generate CO
Natural Gas / LPG
Natural Gas / LPG 20 –20 – 200 ppm200 ppm
Oil / Liquid
Oil / Liquid Up to 1,000ppmUp to 1,000ppm
Solid fuel
Solid fuel Up to 20,000 ppmUp to 20,000 ppm
Tragic Incident
• Boiler slow to fire-up resulting in a build up of gas in firebox.
• Boiler eventually ignited, a small explosion caused the flue to become displaced.
• Exhaust gases escaped into the boiler room
• Fumes leaked into 2 bedrooms above
• 1 man died and there was also a near miss.
• A CO alarm would almost certainly have saved them.
Bedroom 1
1 man died due to CO poisoning Bedroom 2
1 woman poisoned By CO
Boiler flue dislodged in boiler room
Tragic Incident
• A flue leading from a boiler had been fixed just below the bathroom window of a seaside hotel bedroom.
• The window had been screwed down but was later undone – fumes entered the bedroom
• 1 man died from CO poisoning
• Flue and terminal were installed in the wrong place and in the wrong way.
• Two employees of the installer company were charged with manslaughter and received fines.
• Statements from family included ...
"We hope everyone who reads this will buy a carbon monoxide alarm and pass the message on."
A near miss
• Lady was complaining of flu-like symptoms
• CO Alarm was fitted and it did respond.
• Gas engineer could not find a problem – claimed CO Alarm was faulty
• New digital alarm showed high levels of CO
• Exhaust gases were coming from the flat below
• A Near miss showing the value of fitting CO alarms
Flues in voids – existing installations
• Gas Safe Technical Bulletin 008 Edition 3 issued April 2013
• Inspection hatches must be fitted, OR
• A void monitoring system should be installed
• How many will be?
Flues in voids – an alternative
• Install a CO alarm in all habitable
rooms that the flue passes through
Gas Cookers
• Owned by the tenant – rarely serviced?
• Can emit significant
amounts of CO – 400ppm not uncommon!
• Low level CO poisoning can cause long-term health
problems
• Can this be ignored as being outside of your responsibility?
Corgi Report 2009
• ‘Just over 72% of installers said they have discovered a CO leak on a customer’s appliance’
• ‘Nearly 50% of CORGI registered installers say they recommend that their customers install an audible CO alarm’
• ‘through increased awareness of CO, it is hoped that public knowledge about the importance of installing an audible CO alarm will increase’.
Gas Safe Register recommends the use of audible carbon monoxide alarms marked with British Standard EN 50291. It should also have a British or European approval mark, such as a Kitemark.
What the Regulatory bodies say
England & Wales Building Regulations requires a CO alarm to be installed when a new solid fuel appliance is installed or when an existing one is replaced
Northern Ireland Building Regulations requires the installation of a CO alarm when any fuel burning appliance is installed – new and existing installations
Scotland Building Regulations requires the installation of a CO alarm when any fuel burning appliance is
installed – new and existing installations
Quote from Baxi website
‘For you and your family's safety, it is advisable to fit a carbon monoxide alarm in each room in your home that has a gas appliance’.
Response to e-mail enquiry to Worcester Bosch
We don't have a specific company stance on it [installing CO alarms] - we would always refer customers to Gas Safe
Register's guidelines.
Quote from COCAA section of Vaillant website
Fit an audible Carbon Monoxide alarm. CO alarms need to meet European safety standards and must be audible.
What the Boiler Manufacturers say
BS EN 50292: 2002
Code of Practice for siting and installation
BS EN 50291-1: 2010 BS EN 50291-2: 2010
Product Standards for CO Alarms
Standards & Regulations
Choosing a CO alarm
Battery powered alarm
• Lower purchase cost
• Easier to install
• Easier to remove
• Battery may have to be
replaced with some products
• Alarm has to be replaced after 7 years
• No interconnect with most products
• No signalling option with most products
Choosing a CO alarm
Mains powered alarm
• No batteries to replace
• Less likely to be removed
• No back-up if mains fails
• Higher purchase price
• Higher installation cost
• Alarm has to be replaced after 5/6 years
• No interconnect option
• No signalling option
Choosing a CO alarm
Mains powered with back-up
• Rechargeable back-up cells
• No batteries to replace
• Less likely to be removed
• Replace sensor after 5/6 years
• Hard wire and RF interconnect option
• Can be interconnected with smoke alarms
• Signalling via a relay option available
• Higher purchase price
• Same installation cost as mains only
Where to site CO alarms
• In all rooms where there is an appliance
• 1st Priority – open-flued or flue-less appliances
• 2nd Priority – where people spend most time
• 3rd Priority – where appliance is most used
Open–flued appliance
Siting CO Alarms
• BS EN 50292 allows wall or ceiling mounting
• BRE GBG 30 recommendations based on trial results...
• Ideally, site on the ceiling at least 300mm from wall or other obstruction - the easiest siting position
• Site 1 - 3m from the appliance
Ceiling mounted Recommended Siting position
Wall Mounting
• If it must be on the wall:
a). High as possible – 150mm from ceiling b). Higher than doors or windows
• Between 1 – 3m from source of CO.
• Not easy to meet these restrictions
Siting CO Alarms
• Where the appliance is in a confined space e.g a boiler room
Interconnecting alarms
• If only one CO alarm is installed audibility could be a problem
• Interconnection with smoke alarms can overcome this
Alarms not interconnected
Alarms
interconnected
Interconnecting CO & Smoke Alarms
Only with a switch
Hard-wired
RadioLINK