Browse Fire Detectors

Detectors - Expert Commentary

Reducing Fire Safety Costs in UK Residential High Rise Buildings
Reducing Fire Safety Costs in UK Residential High Rise Buildings

Since the Grenfell tower tragedy in 2017, residential high-rise fire safety has become a top priority for tower block building managers. If a high-rise building is found to contain combustible cladding, then the standard ‘stay put’ policy is no longer considered safe, and instead a temporary ‘simultaneous evacuation’ strategy must be put in place until the cladding issue is resolved. Currently a Waking Watch protocol is the preferred option for ensuring resident’s safety, in order to coordinate a simultaneous evacuation in the event of a fire. But, due to the extremely high cost of Waking Watch, Fire Detection & Alarm systems are being used to help reduce and, in some cases, remove these costs, which can amount to upwards of £100,000 per year. After the Grenfell fire, official figures showed that there are 300 towers with ‘Grenfell-style’ Aluminum Composite Material (ACM) cladding. However, there are many different types of high-risk flammable cladding used on purpose-built blocks of flats, such as timber, high-pressure laminate (HPL) and polystyrene cladding. With more and more unsafe buildings being assessed, the scale of this issue continues to grow. Currently a Waking Watch protocol is the preferred option for ensuring resident’s safety The UK Government announced in 2018 that it would pay for the removal and replacement of unsafe cladding in councils and housing associations. However, there is no legal position stating that private landlords should not pass the cost of this work onto tenants, and with the high costs of replacement, along with mounting Waking Watch costs, private landlords are known to pass this cost to tenants in service charges. Along with the cost of cladding replacement, landlords are also charging tenants for the cost of expensive Waking Watch services. Approved fire alarm systems are fast becoming the preferred safety system, due to the reduced overall costs, as well as the NFCC (National Fire Chiefs Council) recommending these over Waking Watch services. Fire safety regulations in high-rise buildings Following the Grenfell tragedy, the Government issued notice that all buildings over 18m had to be assessed for combustible material in their external walls. Following this, in January 2020, the government also issued Advice for Building Owners of Multi-story, Multi-occupied residential buildings stating that “building owners are to consider the risks of any external wall system and fire doors in their fire risk assessments, irrespective of the height of the building” immediately, until a Fire Safety Bill is put in place. Approved fire alarm systems are fast becoming the preferred safety system In order to assess the fire risk of external wall systems of residential apartment buildings an EWS1 assessment (External Wall Fire Review) must be completed. This risk assessment form provides a ‘safe’ or ‘unsafe’ certificate for the building, and must be completed by a competent fire expert. Not only does an ‘unsafe’ certificate affect the owner of the building, with the need for new fire safety solutions, it also directly affects tenants, with mortgage lenders refusing to lend on a apartment until they are satisfied that the facade is safe. Until the building has completed the assessment and been deemed safe, all dwellings within the building are valued at £0, and cannot be sold. 'Unsafe' certificates Buildings that have been awarded an ‘unsafe’ certificate through the EWS1 assessment will need to implement temporary fire safety measures while the cladding is being removed. The key purposes of this guidance, outlined by National Fire Chiefs Council (NFCC) in May 2018 and then reviewed in October 2020, are: early detection of a fire, warning of building occupants, and management of the evacuation. The measures state: In order to prevent tenants from being removed from their homes, ‘Stay Put’ must be temporarily replaced by a ‘Simultaneous Evacuation’ strategy until the building has been remediated. Temporary protection measures must be introduced to ensure the safety of residents; either a 24/7 Waking Watch or a common Fire Detection & Alarm system designed to BS5839 Part 1 category L5 specification. Fire safety solutions Waking Watch is the quickest and easiest way to fulfill the requirements from the NFCC guidance. This solution requires a trained fire marshal or warden to patrol the building 24/7 and alert residents in the case of a fire. They will also be responsible for carrying out the Simultaneous Evacuation strategy and assisting residents’ evacuation. While the Waking Watch solution works well as an immediate solution to fire safety, the mounting costs of this fix means that it is unsustainable in most situations, with tenants facing unaffordable increases to their monthly rent in order to cover the costs. For example, reports into Raphael House, near Essex, show how a five-person 24-hour patrol costs £50,000 per month. This cost is split between the 154 flats, resulting in average costs of more than £300 a month for each resident. Issues with Waking Watch In addition to the cost, there are other issues associated with Waking Watch, including: Patrols cannot cover all areas of the building at all times No fire detection system within the flats themselves Not a long term solution The alternative solution to fire safety in high-rise buildings, as per the NFCC guidance, is to install a Fire Detection & Alarm system designed to BS5839 Part 1 category L5 specification. Although the upfront cost of these systems tend to be higher than a Waking Watch initiative, the overall expenditure, given the cost and time it takes to replace the cladding, far exceeds the cost of a fire alarm system. NFCC compliant fire alarm systems An NFCC compliant fire alarm system ensures early detection of fire and alert to residents. The BS5839 Part 1 category L5 systems do not replace the mains wired smoke alarms required in each apartment, but instead are installed in the common areas of the building in order to provide additional cover for these communal areas. These fire systems should be: Designed in accordance with BS5839, Part 1, category L5 Heat detectors should be installed throughout the building next to the windows that overlook an area of the external wall, including within the dwellings. An immediate evacuation signal should be triggered by the operation of any single heat detector. Installation of a new common area fire alarm system should not cause any further damage to the compartmentation or have an adverse effect on other provisions in the building. Comparison (Waking Watch vs Fire Alarm Systems) Cost: The government has outlined the average cost of Waking Watch in England as £17,897 per building per month, with the hourly rate per person undertaking Waking Watch duties ranging from £12.00 to £30.00 per hour. A total of £644,292 over 3 years. Additional charges for equipment, facilities, accommodation and services can also be applied. A suitable fire alarm system is likely to cost around £65,000 over the course of 3 years, for installation and yearly recurring costs. This means, over this period, installing a fire alarm system will save a total of £579,292. Long term solution: While both Waking Watch and a Fire Alarm System are considered short term solutions, many fire alarm systems can be adapted for future use once the cladding issue has been resolved, providing suitable infrastructure is created at the design and installation stage. Alerting the whole building at once: A Fire Alarm System is a more time efficient solution to detecting a fire than Waking Watch. The system is able to alert the whole building at the same time, allowing for the simultaneous evacuation protocol to be followed in a more time efficient manner. The NFCC states in their Simultaneous Evacuation Guidance... “NFCC strongly recommends that where a change to a simultaneous evacuation is deemed appropriate and will be required for medium to long periods of time that a temporary common fire alarm system is installed. This is because a temporary common fire alarm, when designed, installed and maintained appropriately is a more reliable and cost-effective way to maintain a sufficient level of early detection. An appropriate communal fire alarm and detection system will generally provide more certainty that a fire will be detected and warned at the earliest opportunity rather than rely on using trained staff.” With many residential high-rise buildings needing additional protection due to flammable cladding, and the excessive cost of Waking Watch, now is the time to consider a Fire Alarm System to keep residents in high-rise buildings safe.

Fire Detection: Protecting Food And Grocery Stores
Fire Detection: Protecting Food And Grocery Stores

During these challenging times, it is more important than ever to protect the supply chain of food, including supermarkets and convenience stores in cities around the world. On average 3,740 fires occur in food and groceries stores in the US annually, including supermarkets and convenience stores, according to a report published by the NFPA (National Fire Protection Association). Structure fires in mercantile properties were responsible for the loss of 12 lives and more than $600 million indirect property damages, and this doesn’t account for the cost of business interruption and the effect on the reputation of the store. Many stores haven’t been able to recover after a fire. The report estimates that a single fire may cost $46,000 on average, which in hindsight is considerably higher than investing in a fire detection system. The most common causes of fire in supermarkets It’s important to look at the data from two different perspectives. The first is the number of fires by cause, and the other is to quantify the property loss by cause. The report estimates that a single fire may cost $46,000 on average Fires caused by cooking equipment , including stores with kitchens and warming and portable equipment, account for 21% of incidences, but only for just 7% of total property damage and four civilian deaths (firefighter and first responder deaths are registered on a different report). On the other hand, electrical distribution and lighting equipment malfunctions and defective wiring account for 15% of the total of fires in a given year, but caused $165 million in property loss, or 27% of the total recorded on the report. It is also important to mention that intentional fires are the third cause reported, accounting for 11% of the total fire incidences and 20% of the property loss highlighted in the report. Occupation, materials and risks The kind of store poses a significant variety of risks associated to the type of occupation, the number of occupants and the materials stored and available in the shopping areas. It’s possible to find combustible materials of diverse nature and propagation speed. Cardboard and paper wrapping can be found in all store areas, including book and magazine stands. Cleaning products, oils and fatty products might have a high propagation speed. All of this, surrounded by different kind of plastics, immensely increase the level of risk. Overall, combustible liquids caused 41% of the civilian deaths recorded during the report In my firefighting years I’ve responded to several fires in food supermarkets and distribution centers, and saw tuna cans (canned with oil) exploding and spreading flames to the surrounding areas. Regarding occupation, it is known that supermarkets and groceries stores are places with high levels of occupation, especially during working hours. But one interesting fact that the report found is that fires occurring between 9pm and 5am can cause, on average, $73,800 in property damage. The NFPA estimates that 21% of human life losses happened between 12am and 3am. This highlights the importance of installing and maintaining an automatic fire detection system. Installing fire detection And Protecting Your Store With the variety of materials and the risk level that can be found in this kind of environment, it’s necessary to take a holistic approach. Fire protection should be designed while considering several angles, from passive protection in all interior and exterior structures and cladding to active protection with sprinkler and clean agent systems, proper ventilation and smoke control and automatic fire detection and evacuation systems. On average 3,740 fires occur in food and groceries stores in the US annually Several detection technologies need to work in parallel, depending on the type of products stored, the environment and the expected level of occupation on the protected area. Store height and ventilation need to be taken into consideration and also the kind of lighting in some cases. Depending on the ceiling height, the shopping floor could be protected with beam smoke detectors. If the ceiling is below six meters, or the store shelves obstruct the beam, it’s possible to use spot type smoke detectors. The same approach can be taken for warehousing and storage areas, but here I would recommend multi-criteria detectors, with heat and smoke detection combined. localized protection As I’ve mentioned before, cooking areas have an increased level of risk, which calls for localized protection. Here, I would recommend multi-criteria (smoke/heat) detectors for areas where food is heated and served, and smoke/heat/Carbon monoxide detectors on cooking areas to avoid nuisance alarms caused by cooking smoke and steam. It’s important to mention that until this year it was possible to install heat detection in cooking areas, but the UL 268 7th edition that comes into effect in 2021 will require cooking areas to be protected with smoke detection, and smoke detectors have to be able to reject nuisance alarms caused by cooking smoke and steam. Smaller supermarkets and convenience stores usually have vertical freezers or horizontal open freezers. Here, electrical and mechanical failures can ignite fires, which is why it is important to protect the rear side of the freezers. I would recommend point-type smoke detectors, as photoelectric smoke detectors tend to perform better on smoldering fires. The report mentions that air conditioning equipment and electrical equipment can be sources of ignition as well. To protect A/C rooms and electrical rooms I would recommend combined smoke/heat detectors, or maybe even smoke/heat/CO to assure better detection and avoid unwanted alarms in these business critical areas. There is a type of photoelectric smoke detector that uses two different LED sources inside the smoke chamber. This technology, called Dual-Ray, allows the smoke detector to identify the particles inside the chamber by size. The detector knows if it is sensing dust or steam, and can even differentiate between cooking or cigarette smoke from actual smoke from a smoldering fire. Bosch Building Technologies first introduced dual Ray technology in 2015. protecting the food supply chain During these challenging times, it’s more important than ever to protect the food supply chain and avoid the social and economic impact of fires in food stores, especially in impoverished areas. Supermarkets and convenience stores present a variety of challenges regarding fire protection, which calls for a holistic approach where passive and active protection are equally important. To achieve this target, one key element is automatic fire detection. Smoke and heat sensing technologies must be combined, and one size-fits-all approach is not enough. Detection and effective evacuation are critical to protect lives and minimize property loss.

Why Fire Safety Must Be A Priority When Reopening Businesses
Why Fire Safety Must Be A Priority When Reopening Businesses

With many businesses and facilities re-opening sites following the Coronavirus lockdown, fire safety may not seem high on the list to other worries and responsibilities. But here, Mandy Bowden, Fire Business Development Manager at Comelit Group UK, led by fire industry bodies, demonstrates why it must be a priority, ensuring installation of systems is guided by best practice in accordance with the development, and fire safety measures are maintained and regularly tested to ensure compliance. Fire safety is too often neglected. And in the midst of returning to work and implementing necessary fever screening solutions and social distancing policies, it may even fall further down the necessary requirements, for businesses who are naturally eager to open and ‘get going.’ Providing Fire Safety But the Government and leading authoritative fire industry bodies have made it absolutely clear that, “Coronavirus is not an excuse for disregarding your responsibilities and businesses must ensure that they have an adequate amount of competent people to help in the implementation of both preventative and protective fire safety measures.” Above all else, fire detection is there to save lives; but the way in which systems are presented, will depend on their surroundings. For many facilities it involves more than the best choice of products and services. It also requires compliance to standards, currently changing in light of the Grenfell Tower Inquiry, and a need to consider the environment that it serves to keep safe. fire detection technology It is crucial that buildings are fitted with the highest quality life safety systems to ensure ultra-reliable protection Style of a fire detection system would be considered a priority for a hospitality environment, including hotel and restaurant facilities, to blend with the aesthetics and not impact on the ambience created. In any leisure facilities such as a Gym, it is essential fire detection measures and systems are in place that will provide customers, employees and the premises itself, with sufficient prevention against fire at all times. To keep up with demand, a system needs to be simple to install and operational as quickly as possible for the benefit of members and staff. However, a manufacturing vicinity will require latest fire detection technology to ensure the safety of its building, its specialist products and all personnel who operate on site. Similarly, an art studio is a specialist consideration when it comes to fire safety, especially with the use of different materials and substances in every day works by the artists on site.  ensure ultra-Reliable protection Both temporary and permanent healthcare facilities in this period have undoubtedly been key to fighting the Coronavirus pandemic, and experienced an expediential increased demand for patient care. With more people to treat and protect, those working or residing within these spaces have to be considered at greater risk in the event of a fire emergency. It is crucial that these buildings have been and continue to be fitted with the highest quality life safety systems to ensure ultra-reliable protection. And the same is true for care homes, a vulnerable group in the fight against coronavirus. They require critical and reliable, functioning fire detection equipment that presents high performance protection, avoiding false alarms to prevent moving elderly residents unnecessarily. In each of these scenarios, the need to act quickly is paramount.  Fire Detection Operations Fire safety must be kept a priority to ensure a return to work can occur seamlessly and successfully In healthcare, immediacy is a common theme through the industry, be it providing treatment or responding to a patient’s symptoms. This is no different in fire safety, with detection systems requiring an ease of use, by anyone operating on site. In businesses returning to work ‘post-lockdown’ the appointed Fire Marshalls and responsible persons may not be the ones returning to office locations, so others need to be trained with simple to operate solutions. In summary, fire safety must be kept a priority, arguably now more than ever to ensure a return to work can occur seamlessly and successfully, and with an obligation of care to workers coming back to operating establishments. By understanding these environments and choosing systems accordingly, duty holders can ensure they reduce risks across their premises and maintain a safe ‘new normal’. multi-Sensor detectors Comelit presents its third-party accredited family of ATENA and ERACLE fire detection and fire alarm systems, which offers a diverse portfolio of intelligent, addressable products that are feature-rich, easy to install, simple to operate and offer incomparable reliability. Tested to rigorous standards, the range encompasses smoke, heat and multi-sensor detectors as well as IP rated devices including sounders and callpoints, alongside accessories to complete installations. To support the installer, we have product specific basic and advanced commissioning training courses, together with a full suite of calculation tools for our ATENA addressable systems for both loop loading and battery standby calculations, helping to identify possible issues prior to installation. Comelit is a proud member of the Fire Industry Association (FIA) that insists on third-party certification; as a clear sign of a company’s quality. All demonstrating that we want to work in partnership with our customers to ensure manufacture, design and install of stylish (often bespoke) fire detection systems are a smooth operation for the benefit and peace of mind of businesses and facilities across the UK. All signs that we want to work in partnership with our customers to ensure manufacture, design and install of stylish (often bespoke) fire detection systems are a smooth operation for the benefit and peace of mind of businesses and facilities across the UK.

Latest C-TEC (Computionics) Ltd news

C-TEC’s Hush Pro BS 5839-6 Grade C Domestic Fire Detection And Alarm System Secures Manchester’s Oxygen Towers
C-TEC’s Hush Pro BS 5839-6 Grade C Domestic Fire Detection And Alarm System Secures Manchester’s Oxygen Towers

C-TEC’s revolutionary Hush Pro BS 5839-6 Grade C domestic fire detection and alarm system has been chosen for three iconic tower block developments in Manchester, United Kingdom. Located in the center of Piccadilly, Oxygen Towers is a striking set of three new 31-storey, 16-storey and 10-storey buildings consisting of 345 stylish 1, 2 and 3-bedroomed apartments and 12 spacious family townhouses. Protecting futuristic ‘vertical village’ Designed to provide the ultimate living experience, the futuristic ‘vertical village’ combines luxury accommodation with fabulous five-star leisure facilities including a swimming pool, cinema, gym and spa. The stunning development also features lush garden terraces and rooftop gardens. Selected for its cutting-edge technology and capacity to align with the building’s fire strategy, Hush Pro will integrate with the site’s BS 5839 part 1 landlord system to offer higher levels of fire protection than the Grade D unmonitored battery alarm systems, typically used in domestic installations. Hush Pro BS 5839-6 Grade C fire detection and alarm system As a fully-monitored BS 5839 part 6 Grade C system, Hush Pro reports open and short circuit faults As a fully-monitored BS 5839 part 6 Grade C system, Hush Pro reports open and short circuit faults and operation faults back to the fire panel and even allows management and maintenance companies to remotely monitor the system. Once the project is complete, each of the flats will feature an easily accessible low-level Hush Pro Controller connected to a series of Hush Pro smoke detectors, base sounders, multi-sensors and heat detectors all seamlessly interfaced to a powerful network of C-TEC 4-loop ZFP addressable fire control panels to provide all-encompassing fire and fault monitoring of the system. Enhancing fire safety management If, for any reason, part of the domestic fire alarm is compromised, this will immediately be reported to the building management team to allow them to action the fault and re-instate full fire detection coverage to the flat. John Blundell, Head of Solid State Security Ltd (Solid State Living), the specialist fire company involved with the design and delivery of the project, said “As well as enhancing the fire safety management, property and life protection of the buildings, a key factor in our client’s decision to invest in Hush Pro was the system’s ability to notify building management in the event of a real fire and, at the same time, its potential to virtually eliminate false alarms.” Reducing false fire alarms He adds, “Hush Pro’s unique capacity to differentiate between Fire Level 1, usually a false alarm reported locally in the dwelling, and Fire Level 2, almost always a real alarm activated outside of the dwelling, reduces false fire alarms, unnecessary call-outs and the risk of a real fire alarm being ignored. As our client requires immediate notification in the event of a fire but also first-class false alarm management, Hush Pro will prove ideal.” John further stated, “Also of vital importance to our client is that, as the project consists of private balconies with an open plan flat arrangement, Hush Pro is the only fire alarm solution that can actually meet the requirements of BS 9991 Annex D3.” Hush Pro’s powerful false alarm management capability will also prove invaluable at the site" Jason Lawler, 24-7 Group’s Group Director and the person responsible for delivering the electrical and mechanical systems for the project, said “Hush Pro is an outstanding solution. The system will provide residents with easy-to-use detection, alarm, silencing and test facilities so they can test their own devices, be alerted to system faults and hush any false alarms at the Hush Button, which is positioned at light-switch level for safe and easy access. Hush Pro’s powerful false alarm management capability will also prove invaluable at the site.” Integrated BS 5839 part 1 and part 6 fire alarm solutions John Blundell said, “Client satisfaction is incredibly important to us so we were delighted to be able to specify a robust and fully-compliant integrated BS 5839 part 1 and part 6 fire alarm solutions for Oxygen Towers.” He concludes, “With its capacity to provide high levels of fire protection yet also minimize costly and disruptive false alarms, Hush Pro is fast becoming the system of choice for fire strategy engineers and consultants dedicated to enhancing fire safety in high-rise residential and specialist housing projects throughout the UK.”

C-TEC Creates A New Evacuation Alert Systems Video To Explain Uses Of Evacuation Systems
C-TEC Creates A New Evacuation Alert Systems Video To Explain Uses Of Evacuation Systems

Life-safety systems manufacturer, C-TEC, has created a new Evacuation Alert Systems video. Aimed at anyone involved in residential fire safety, the animated video shows exactly how Evacuation Alert Systems can be used to assist the Fire and Rescue Services evacuate all or part of a high-rise residential building in an emergency situation. Engaging, educational and fast-moving, the video highlights how devices in individual flats can be programmed to evacuate residents on a zone by zone basis in an emergency should stay put/defend in place fail. Evacuation alert systems Said Andy Green, C-TEC’s Marketing Manager: “New recommendations in the Grenfell Tower Enquiry Report and the new BS 8629 code of practice for evacuation alert systems for use by fire and rescue services in buildings containing flats means the demand for evacuation alert systems is rising.” “Our new 2-minute video provides an excellent overview of why, where and how they are used and is timed to coincide with the launch of EVAC-ALERT, a new evacuation alert system specifically designed by C-TEC to meet the requirements of BS 8629.”

C-TEC’s Hush ActiV BS 5839-6 Grade C Domestic Fire Alarm Systems Secures Defense-Managed Residential Properties
C-TEC’s Hush ActiV BS 5839-6 Grade C Domestic Fire Alarm Systems Secures Defense-Managed Residential Properties

C-TEC’s new Hush ActiV BS 5839-6 Grade C domestic fire alarm systems are providing top-grade fire protection at several Ministry of Defense-managed residential properties in North Wales. Located on the banks of the Menai Strait, the stretch of shallow tidal water that separates Angelsey from the mainland, the spacious homes are part of The Joint Service Mountain Training Centre Indefatigable, a facility designed to provide affordable holiday accommodation for members of the Armed Forces and their families. Each of the three-bedroomed properties is equipped with Hush ActiV smoke detectors in the entrance hall and stairs, a heat detector in the kitchen and sounder beacons in the bedrooms, all connected to a Hush ActiV controller. With its easy-to-operate low level controller, the system offers simple detection, alarm, silencing and test facilities at light-switch level - occupants simply press ‘HUSH’ on the controller to silence an unwanted alarm. Fire protection and minimal false fire alarms Said Darren Morrell, Director of Olympian Fire, the specialist installation company that completed the project: “Our client required a system that would provide the families staying in the properties with the highest levels of fire protection and minimal false fire alarms. We specified Hush ActiV, a high-quality cost-effective fully-monitored BS 5839-6 Grade C solution, as it offers greater levels of protection than the unmonitored battery alarm Grade D systems typically used in these properties and virtually eliminates false alarms." “Hush ActiV is a fantastic option for domestic dwellings that don’t require all-out conventional fire alarm systems. Our client is delighted and the success of the project has led to C-TEC’s more sophisticated Hush Pro domestic fire solution being specified at some other MoD facilities where connection to a communal/landlord system is required.”

vfd