Fire Sprinklers - Expert Commentary

Don’t Play With Fire Safety In A Post-COVID World
Don’t Play With Fire Safety In A Post-COVID World

The risk of fire is thankfully not an immediate threat in most people’s everyday lives. But this has led to a nonchalant attitude where many fail to appreciate the true dangers posed by a fire situation. The pandemic has served to make matters even more complex, and has pushed fire safety on the back burner as facility managers (FMs) turn their attention to COVID-proofing the workplace. Safety at work is now more of a focus than it has ever been, but the race to ensure we can return to work safely has seen other important matters, like improving indoor air quality, take precedence. Fire detection systems  As new rules and regulations regarding the pandemic are introduced, many FMs have been unable to focus on anything except the immediate issues at hand. But fire safety is always immediate. Fire detection systems and servicing and maintenance contracts have always been considered grudge purchases, but this doesn’t mean they should fall off the radar. As buildings have been left vacant, fire alarms have gone untested, have missed upgrades or have even failed to sound. Every business has faced unique challenges in their response to the pandemic But upholding fire safety measures in the workplace is both a moral and legal requirement to help ensure the protection of people and assets, and businesses must treat it with the attention it deserves. Every business has faced unique challenges in their response to the pandemic. We’ve seen some continue operating as usual, some pivot production to make face masks and hand sanitizer, while others have shut their doors for the foreseeable future. Fire risk assessments Those that remained open will likely have experienced considerable changes to workplace layouts, which may in turn have had adverse effects on fire safety – for example, fire doors being wedged open for ventilation, or because people don’t want to touch door handles; and new one-way systems that affect shared escape routes. What’s more, fluctuating staff occupancy levels mean there may not be enough fire wardens present should an alarm sound. All of these changes have an impact. In the event of a fire, your staff and assets might not be as safe as you think. But there is a simple solution: fire risk assessments. The vast majority of companies have undergone a change of occupancy during the pandemic and, as a result, must review their current fire safety measures through a risk assessment. Qualified third-Parties We often find that businesses lack staff with the appropriate training and skillsets in-house This involves looking at a building’s people, processes, procedures, contents and technologies, from fire alarms to sprinkler systems, with the aim of addressing any faults. With occupancy levels and more changed for the meantime – and possible for the long-term too – it’s vital to update your risk assessments. Failing to do so could have severe reputational and financial repercussions, particularly if livelihoods are affected. Should the worst happen, it could also lead to insurers refusing any pay-outs from failing to secure the premises, leading to even more difficulties down the line. We often find that businesses lack staff with the appropriate training and skillsets in-house to conduct a sufficient fire risk assessment. But even with the current restrictions, there’s no reason risk assessments can’t be easily carried out by qualified third-parties. Social distancing guidelines Many buildings lie vacant, meaning assessors simply need to show up in their PPE and conduct the assessment under social distancing guidelines. Technology can also play an important role, by ensuring a building’s safety systems are in order through remote diagnostic tools. Some assessors can even carry out a vast majority of the assessment virtually, examining floorplans, exit routes, and tech stacks from the comfort of their own homes. That said, many businesses won’t have the latest IoT sensors needed to notify FMs on the condition of a building’s physical aspects, such as occupancy levels, open fire doors or signage. Need for office space The impact of COVID-19 on the way we work will be felt for years to come The purpose of a fire risk assessment is to provide FMs with the knowledge they need to ensure their business and assets remain safe and secure, should the worst happen. COVID has not put a stop to this – distraction has. The onus is on FMs to put fire safety back on the priority list. The impact of COVID-19 on the way we work will be felt for years to come. For example, the success of the move to widespread remote work could see businesses revaluating the need for office space, and this will likely have knock-on effects to fire safety as regulations are taken into the home. Associated regulatory changes Elsewhere, the decline of the high street and closure of physical stores may see shops converted for other purposes - and these developments will be accompanied by the associated regulatory changes. It’s becoming clear that as the pandemic has changed the way we use buildings, it will also change the way we approach fire safety. People don’t like to think they may be impacted by fire, but we cannot let fire safety fall off the radar when livelihoods and lives are at risk. As FMs have worked hard to ensure our workplaces are COVID-proof once doors reopen, they must also approach the risk of fire with the same attentiveness. Awareness of the issue is now more important than ever – fire safety needs to be a top priority.

A Look At Emerging Technologies In The Fire Protection Industry
A Look At Emerging Technologies In The Fire Protection Industry

Innovation in the fire protection industry can oftentimes be slow to move forward, particularly when compared to other similar industries. This is because legislation, regulation, and enforcement, while all necessary proponents within the sector, can often slow the tide of revolutionary ideas. However, the ability to innovate in this industry can quite literally be a matter of life and death. The developing intricacies of modern infrastructure and the demand for more sustainable solutions must also fuel the need for innovation. Fortunately, there are many companies at the forefront of technical and digital transformation within the industry. At the NFPA Conference in June 2019, much of the chatter revolved around Smart Connected Things (SCoT) within fire protection systems.  Smart Technology Smart Tech can offer more accurate, efficient inspections and testing, which on its own is capable of saving lives These systems are now being used by both building owners and service providers to determine fire protection system conditions as well as helping to perform some critical testing functions remotely - which of course has been invaluable in 2020. Smart Tech can offer more accurate, efficient inspections and testing, which on its own is capable of saving lives and protecting valuable property. For example, if a warehouse has been equipped with smart tech solutions to observe water pressure and flow rates within a building sprinkler system, users can have a real-time view of how much water has been flowing per minute. This means that should a fire break out in a particular part of the building the flow rate within the sprinkler can be routed to that specific area to put the blaze out as efficiently and as quickly as possible. Advanced Smoke Detection Fire protection brands have made huge leaps forward in their quest to develop smoke detectors which meet with the UL 268 Safety Standards for 2020. The new standard requires that all smoke alarms and detectors must meet two critical benchmarks: Increased responsiveness to the new polyurethane foam tests. Ability to distinguish the difference between smoke aerosols from accidental fire sources and smoke aerosols from cooking sources. Basically, domestic smoke detectors must be able to understand the difference between materials, based on the kinds of smoke they emit when they catch fire. Detectors must also distinguish between the smoke produced as a by-product of cooking, or a “nuisance” fire, and a real fire, which could pose a threat to human life. Smoke & Flame Video Detection The new alarms feature “TruSense Technology”, which is designed to be able to differentiate between fast and smoldering flames and common false alarms. These technologies were developed in the hope that homeowners wouldn’t just simply remove smoke alarms or batteries due to frequent false alarms. Video Image Smoke Detection technology has been around the industry for a few years now, but full video detection is now being used to supplement it, in order to further the applications of this technology. A video image will then be processed by the software that then concludes whether the clip contains smoke or flames This tech uses video-based analytical algorithms that integrate cameras into advanced flame and smoke detection solutions. A video image will then be processed by the software that then concludes whether the clip contains smoke or flames. The algorithms used to distinguish smoke and flames can utilize several different metrics, such as a change in brightness, contrast and movement. Water Mist Suppression Systems Depending on the kind of system in place, these recognition tools can even offer security and other surveillance features too. This technology is ideal in locations with large surface areas, such as power plants, stadiums, shopping centers and warehouses and distribution centers, where a fire may be particularly challenging to locate using traditional methods. Flame Video systems trace fire to its origin to make for quicker, more effective extinguishment and evacuation. A major concern for most businesses in any industry is sustainability. Water mist suppression systems are able to fight fires using significantly less water than a traditional system. The water is stored under extreme pressure and is released using specialized sprinklers and spray heads. This enables the water is able to reach a far larger surface area since the droplets are much smaller. Exit Point Technology A water mist suppression system is also designed to cool down an area where fire and smoke are present, by blocking radiant heat and eliminating oxygen from the origin point. These systems are often used in areas that see a lot of foot traffic or buildings where the possibility of water damage would be detrimental. All Fire Alarm Systems must include notification appliances, such as bells, horns and strobe lights. Technological advances use directional sound to help evacuees determine the pathway to the fire exits But the latest devices now provide verbal instruction on what to do in the event of a blaze and tell people where to go to the nearest exit. It’s highly likely that evacuation may be hampered by black smoke and smog in a real-life emergency. This obviously makes visibility limited, thereby possibly making exit signs challenging to see. The latest technological advances use directional sound to help evacuees to determine the location and the pathway to the fire exits. New Sealing Sprinkler Guidance The audible sound is specially adapted to the human ear, meaning that someone could easily determine the direction and sound. While the previous entries in this list have been about products, it’s also absolutely vital that fire safety regulations are also developed alongside these products. Not only does this ensure the protection of occupants within the building, but also the structure of the building itself. For example, The Ministry of Housing, Government & Local Government announced tweaks to the Approved Document B (Fire Safety) which went into effect last November and applied to building works that started this January. These updates apply to blocks of flats and mixed-use buildings with top floors that are more than eleven meters above ground level. The legislation change means that C-PVC sprinkler pipes now need to be sealed with only specialist and approved products. The height threshold for a sprinkler system in residential flat blocks has been reduced from 30 to 11 meters.

Why Retrofill? Transformer Safety And High-Rise Buildings
Why Retrofill? Transformer Safety And High-Rise Buildings

From a 48-storey fire in the UAE, to a 200-firefighter-strong blaze at student accommodation in the UK, several high-profile, high-rise fires continue to keep the focus of utilities, regulators, developers, and public associations everywhere on actively seeking ways to reduce the risk of fire with innovative materials. Statistics show that the majority of fire related fatalities occur in a domestic setting between the hours of 10 pm and 6 am. Protecting high-rise residential buildings from fire, where occupancy rates are high but the reaction to danger is lower (while asleep), is a critical engineering challenge. Fire risk assessment While most recently built high rise buildings will be equipped with risk safety provisions such as wet or dry risers, protected staircases, sprinklers, and communications systems as standard, thousands of post-war, purpose-built flats require careful risk assessment and improvement. What was acceptable at the time of build may no longer meet today’s standards or may have been affected by changing environmental factors such as the encroachment of neighboring buildings. While the fire safety legislation adopted in 2006 has driven improvements that seek to address these types of issues While the fire safety legislation adopted in 2006 has driven improvements that seek to address these types of issues, its application has sometimes been problematic, with varied results from site to site. A fire risk assessment is the first step in evaluating the risks posed and identifying options to reduce the potential for a devastating event. Potential fire risk Electricity substations, which are often located in the basement or adjoining a high-rise building, will often be identified as a potential fire risk due to the proximity of a source of a fuel – mineral oil – to a source of heat and sparks. This concurs with the findings of the MIDEL Transformer Risk Report 2020, where respondents identified fire risk as the second most important consideration when assessing transformer risk overall. Mineral oil is widely accepted as the most flammable of the insulating fluids used within a substation’s transformers, but has persisted in its use due to its price point. A mineral oil fire will burn ferociously, producing thick, black smoke, impeding evacuation by reducing visibility and potentially jeopardizing ground floor and basement exits. Fire suppression systems At their worst, there are documented cases where transformer fires have caused loss of life and significant damage to the environment. They are certainly not a risk to be ignored. In newer buildings, the use of mineral oil in a transformer needs to account for the substation to be constructed to the latest fire safety standard – reinforced concrete or brickwork with a minimum four-hour fire containment rating. The fire risk can be mitigated in a completely different way once mineral oil is eliminated from the equation In addition to fire suppression systems involving significant civil engineering works, these measures do not eliminate the risk of fire by preventing it but are necessary to contain a fire once one starts. Additionally in older buildings, where the retrofitting of concrete reinforcements or a complete relocation of the substation would be expensive and technically challenging (if not impossible), the fire risk can be mitigated in a completely different way once mineral oil is eliminated from the equation. Enhancing fire safety One pioneering UK utility is leading the way in mitigating transformer-related fire risk. Following the fire at Grenfell in the UK, the utility considered that any element of risk was no longer acceptable and so undertook a sizeable and substantial review of its property portfolio. It subsequently identified over 100 residential sites where upgrades could be made to further enhance fire safety and the safety of residents. Many of these higher-risk units are located in embedded substations in the basements of the high-rise apartments that rely on them for electricity. The units range from 500kVa to 1000kVa. After exploring the options, the utility embarked on an extensive program of corrective upgrades at a scale never seen before in the UK. Minimizing fire risk One long-term and economic solution to reduce transformer fire risk stood out; replace the mineral oil in each transformer with a fire safe alternative. Synthetic ester fluids are a K-class rated fire-safe and biodegradable alternative to mineral oil, and it is increasingly being chosen by power utilities and end users to minimize fire risk. The significantly higher fire point makes it the ideal choice for improving the safety of transformers The contract for the utility’s schedule of upgrades was awarded to MIDEL Service Partner Grosvenor Oil Services who opted to use MIDEL 7131, a synthetic ester transformer fluid, that has a high fire point of 316°C, far exceeding that of mineral oil (180°C). The significantly higher fire point makes it the ideal choice for improving the safety of transformers located in residential and high-rise buildings. High-Rise buildings The retro filling technicians leveraged their experience of MIDEL’s ester liquids to the benefit of the project - and the safety of residents. For each site, the technicians inspected the condition of the transformer before draining it of the mineral oil and flushing it through. Once completed, the transformers were retro filled with the fire safe synthetic ester and tested. Replacing mineral oil has several benefits beyond the peace of mind it brings to residents in high-rise buildings. For one, it significantly enhances the sustainability of substations: ester fluids are biodegradable and non-toxic – in the event of a leak, it does not pose a threat to the environment or to people that come into contact with it. Unexpected power outages Ester fluids also keep the transformer in better condition for longer, by reducing the impact that water ingress has on components such as the insulating paper. Because of this benefit, ester-filled transformers require less frequent quality testing (once every five years, rather than once every 12 months). Sites are also better protected against unexpected power outages due to failure Subsequently, this reduces utilities’ maintenance burden as well as increase uptime. Sites are also better protected against unexpected power outages due to failure. Finally, it offers the ability to safely increase transformer load, a benefit that became particularly fortuitous when the COVID-19 lockdown significantly increased domestic property electricity demand. Fire-Safe materials While pioneering, this utility is not alone in its efforts. Utilities across the UK are turning to the benefits of fire-safe materials to reduce the potential for transformer fires in high-rise buildings and higher-risk locations such as hospitals, schools, and shopping centers. The benefits and the process of retro filling is well-established, and with many more people expected to work from home for the foreseeable future, there is not a moment to waste to ensure that the thousands of transformers that supply domestic power are fire safe, sustainable and reliable.

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