Daily Archives: 07/01/2016

Xtralis VESDA VLS aspirating smoke detectors to protect Abu Dhabi International Airport

Xtralis’ VESDA VLS aspirating smoke detectors will provide fire prevention at the new Abu Dhabi International Airport Midfield Terminal Building (MTB), which is scheduled to open next year. The MTB will be the largest in the Emirate of Abu Dhabi, and one of the region’s most architecturally impressive structures.

Xtralis’ VESDA and VESDA-E aspirating smoke detectors (ASDs) now protect many of the United Arab Emirates’ super structures, including the Burj Khalifa, the Emirates Palace Hotel and both Dubai and Abu Dhabi International Airports.

The new Midfield Terminal Complex (MTC) will boast 700,000 square metres of internal space for a passenger terminal (ie the MTB), a cargo facility, a restaurant and retail space.

The size of the MTC is so impressive that it will be visible from 1.5 km away. The facility can accommodate 8,500 passengers per hour and up to 30 million per year. The central space of the terminal building could hold three full-sized football pitches and features a ceiling that’s 52 metres tall at its highest point. This is taller than the Emirates Palace and will include 28,000 square metres of retail outlets and restaurants.

XtralisLASERSCANNER

Chief among the challenges around protecting the MTB is the massive open space where smoke will be diluted, an effect compounded by air conditioning systems. VESDA’s early and reliable detection combined with the VLS capability of monitoring the protected space by sectors were key factors that resulted in the selection of the Xtralis solution.

Additionally, temperatures in the terminal could range from hot to cold, depending on the weather. VESDA is the only detector that could ensure early and reliable detection under these conditions.

The VESDA LaserScanner (VLS) is similar to the VESDA LaserPlus (VLP) detector, but also includes a valve mechanism in the inlet manifold and software to control the airflow from the four sectors (pipes). This configuration enables a single zone to be divided into four separate sectors, for example, distinguishing between separate voids within a room.

The VLS draws air from all sectors in use. If the smoke level reaches the Adaptive Scan Threshold, the VLS performs a Fast Scan of each pipe to identify which pipe is carrying smoke. If more than one pipe is transporting smoke, the sector with the highest smoke concentration is scanned first.

Once Fast Scan is completed and the sector with the highest smoke concentration is identified, the VLS continues to closely monitor all four sectors (pipes) to keep a check on fire growth and maintain full protection of the area.

There are four alarm levels (Alert, Action, Fire 1 and Fire 2) for each sector (pipe). The sensitivity for each alarm level can be set to ensure the optimum alarm thresholds are applied for each sector.

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Chiron’s IRIS Touch 4-NG Series certified to EN 54-21/CPR for fire detection systems

Chiron Security Communications has been awarded the highest standard accreditation of EN 54-21/Construction Products Regulation (CPR) for the entire IRIS Touch 4-NG Series, the company’s high-end alarm over IP diallers.

Adopting a strict quality management policy, Chiron has always been at the forefront of obtaining approvals – such as EN and VdS – for its products.

This latest accreditation is of major importance to the company in terms of new market segment development, and will enable Chiron to assist its customers towards better and easier compliance with insurers’ regulations.

ChironIRISTouch4NGSeries

The EN 54-21 European Standard specifies requirements, test methods and performance criteria against which the effectiveness and reliability of routing equipment capable of transmitting fire alarm and/or fault warning signals for use with fire detection and fire alarm systems installed in buildings can be assessed.

The routing equipment is designed to allow the system to function in accordance with the requirements of this European Standard. It also provides for the evaluation of conformity of the equipment to the requirements outlined in the document.

To be compliant with the CPR, products always need to be tested while connected to a panel such that it can be proven they’re communicating. The IRIS Touch 4-NG Series has been tested as part of an overall fire system and approved to EN 54-21 throughout Europe for the fire market.

IRIS Touch 4-NG Series fire panel integration

Traditionally, the signalling for fire alarms has only been applied to two events: ‘Fire’ or ‘Fault’. However, this scenario provided very little information for Monitoring Centre operators in terms of the best way in which to action/escalate an alarm event.

Most fire panels can generate a great deal more information (eg identify that a sensor is activated, and in what zone) on a local serial port. This is normally done in a panel-specific manner with the protocols differing from one manufacturer to another, and therefore not in a format recognised by the Monitoring Centre operators.

For some time now, IRIS Touch diallers have supported the serial ‘ESPA’ pager protocol interface which many fire panels offer and use to signal such additional information. The IRIS Touch dialler converts the ESPA messages from the panel into standard SIA format and sends these to the Monitoring Centre with additional information to the ‘Fire’ or ‘Fault’ signal.

This concept has been extended in the V2.14 firmware of the IRIS Touch NG range so that serial event messages generated by Honeywell Notifier and HHL fire panels can be handled in the same way and converted to standard SIA format for the Monitoring Centre.

Chiron’s CEO Willem Harthoorn stated: “Chiron recognised the fire sector’s requirement for reliable alarm over IP transmission. On that basis, we invested significantly in both development and applicable certification for our IRIS Touch 4-NG Series. These efforts have already resulted in us winning a major project in Germany. We will continue to implement serial fire panel protocols when we’re asked to do so.”

 

*For more information visit: www.chironsc.com

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