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determine the temperature at every point along the fiber, meaning the entire cable becomes a continuous temperature sensor. It is a gamechanger across the energy supply chain, with applications from monitoring pipelines to safeguarding battery storage facilities.
A LHD system can not only detect a rapid rate of temperature rise that might indicate the early stages of a fire- it can also identify slow-developing hotspots. Adaptive algorithms analyze this data, to distinguish normal environmental changes from genuine fire risks.
Overheating equipment, electrical faults, or mechanical wear often manifest as temperature changes. If identified, they provide a critical window to intervene, whether through maintenance or operational adjustments, before a fire develops.
Speed, precision and automated response
In critical energy infrastructure, where downtime or damage carries enormous economic and societal consequences, precision can be just as important as speed. Conventional detection systems often provide only a general indication of a fire, leading to broad emergency responses, such as shutting down large sections of a plant or pipeline. While effective at containing risk, this can result in unnecessary collateral damage and costly operational disruption.
When FO LHD is integrated directly into control and suppression systems, it unlocks highly targeted, automated action. A fire risk can be detected within seconds, and at the same time, precise location identification means targeted systems can focus on the exact source, minimizing damage, disruption and downtime.
Defying harsh environments
Bandweaver’ s RapidScan smart alarm technology allows for such precision even in the face of environmental challenges. Scanning the full fiber length every five seconds, it uses adaptive rate-of-rise and hotspot deviation algorithms – typically configured at a 10 ° C threshold – to detect a developing fire far earlier than conventional absolute alarm levels, which are commonly set around 57 ° C. That fixed absolute threshold creates real problems at the extremes: in cold climates a fire can develop significantly before ambient temperatures climb high enough to trigger it, while in hot climates where ambient conditions already approach that level, the risk of a false positive alert is ever-present. Because RapidScan alarms are fully configurable, they can be optimized for the specific environment, delivering reliable early detection whether a system is deployed in sub-zero conditions or in the heat of a desert facility.
The sensing cable contains no openings or moving parts, requires no power along its length and is immune to electromagnetic interference. It is highly robust, unaffected by humidity or dust which can make conventional smoke detection systems unreliable, either causing false alarms or blocking sensors. For the same reasons, it’ s also easier to install and maintain.
Another advantage is longevity. Fiber optic cables in telecommunications have been reliably in use for decades, so the expected lifespan of these systems can easily exceed 30 years- in many cases, much longer.
A new safety benchmark
Fire safety is a naturally conservative sector. with an understandable bias towards‘ tried and tested’ tools. New technologies must be proven over time before they are widely adopted, creating some delay between technological innovation and regulatory adoption. Sadly, too often change only comes after major incidents highlight the flaws in existing systems.
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