Fire & Hazard Protection
Advanced Fire Detection protects Tesco Distribution Centre
W
AGNER UK’s TITANUS® PRO•SENS®
Air Sampling Smoke Detection (ASD)
systems were chosen to provide advanced fire detection for Tesco’s latest 500,000 sq ft distribution centre in Dagenham, Essex. The project was designed and installed by Leader Systems, who has completed the majority of fire alarm system installations in these latest generation Tesco distribution centres. ASD provides very early smoke detection ensuring rapid response to a fire condition, protecting staff and the valuable logistics operation. A total of 24 PRO•SENS®
units
were installed in a 1°C and a 12°C cold store and a separate recycling plant. The PRO•SENS®
systems
draw air samples continuously from the monitored area through a pipe system fitted with sampling holes at regular intervals. The airflow is then analysed for smoke particles and an alarm is raised if smoke is present.
The TITANUS® ASD detection module uses a high-power LED light source as opposed to a conventional laser, providing additional benefits including the ability to operate down to -40°C. “In addition to its low temperature performance the TITANUS®
range also
offers other advantages,” explains Paul Loveridge, Leader Systems Design Manager. “The WAGNER systems are very well engineered, offer excellent design flexibility and have proven reliability. We had no hesitation in recommending the TITANUS® our largest client, Tesco.”
conditions point smoke detection may not activate. WAGNER has also developed a special clip, for low-temperature applications, that fits over the sampling holes and allows high-pressure air to be applied from the detector location to clean the pipe network. The TITANUS®
range is supported by products to
Deep freeze areas create a demanding environment for fire detection, one that the WAGNER ASD solution is well suited for, unlike traditional forms of detection. In the event of a fire, dilution of the smoke can occur because of the cooler air and increased airflow from refrigerating units. Icing can also take place when warmer air from neighbouring areas enters the cold store. Under these
PipeXpress, WAGNER’s system design tool, which ensures the pipe network delivers equal performance across the whole monitoring area. The system was installed and commissioned in accordance with the manufacturer’s recommendations and BS 5839-1. WAGNER UK Limited is a supplier of innovative fire protection solutions including air sampling systems and fixed fire extinguishing. Tel: 0870 333 6116 Email:
sales@wagner-uk.com
An education in fire protection for the University of Hertfordshire
T
he University of Hertfordshire houses more than 3,400 of its students in University owned and managed accommodation. The College Lane Campus is based at the heart of the University, giving students access to the Students’ Union, its entertainment venue – The Forum – as well as teaching rooms and the University’s largest Learning Resources Centre. The Fisk Fire Group was tasked with installing Apollo’s XP95 range across the campus’ communal areas and more than 650 bedrooms. The Fisk Fire Group is part of Apollo’s Partner Plus programme and has worked with Apollo for more than 20 years. The Partner Plus programme enables Apollo and its customers to work in true partnership, ensuring that end users, such as the University of Hertfordshire, receive both a seamless and efficient service, as well as reliable and robust products. Mark Fisk, director at Fisk Fire, explains more about the University project: “Overall, we were onsite for around nine months, during which
Building & Facilities Management – December 2013
time the University was fully operational. Student accommodation is a very unique and fluid environment: in term time the accommodation is a thriving social environment, whereas during holidays the number of residents reduces significantly. In addition, the communal areas, usually kitchens, can present the risk of false fire alarms, with a host of ‘delicacies’ being prepared – some more successful than others! The detectors need to compensate for excess steam and smoke, while still providing appropriate fire detection.
“Having worked with Apollo for more than two decades, we knew that its XP95 range was a good fit for this environment. Like all of Apollo’s products, XP95 is an open protocol solution, which means we had full flexibility with regards to the other detection equipment we were installing. Approximately 800 Apollo analogue addressable XP95 detectors
were installed throughout the campus. Having addressable detectors allows for quick identification of the alarm’s location, which is a necessity in a large site such as the campus. The detectors were easily installed, which meant minimum disruption for students who were on the campus at the time.”
The University of Hertfordshire already carries Apollo products in its student accommodation and this 650+ room open protocol refit was undertaken as part of an upgrade to the existing system.
www.herts.ac.uk
fire & hazard protection 17
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