An electrically operated active fire curtain barrier assembly. The barrier assemblies comprises a fire-resistant fabric wound on to a steel roller, powered by an internal 24 V d.c. electric motor, enclosed within a 1.2 mm-thick mild steel box. The edges of the curtain are retained inside side guides, providing pressure resistance of at least 20 Pa. The 24 V motor contains an electromagnetic brake to arrest motion of the curtain when in the open position.

The barrier assemblies have been tested to the requirements of BS EN 14600:2005 for ‘Durability of Self-Closing’ (500 cycles on primary power and an additional ten cycles using back-up power; closing speed of 0.06 m/s). The barrier assemblies have been tested to the requirements of BS EN 1634-1:2014 + A1:2018 for ‘Fire Resistance’ (120 minutes integrity). The barrier assemblies have been tested to the requirements of BS EN 1634-1:2014 + A1:2018 for ‘Radiant Heat Flux’ (20 minutes).

Operation:

Barrier assemblies commence movement upon initiation of BMS alarm or power or system failure, and fully deploys to the fire operational position within the range of velocities of 0.06 m/s to 0.15 m/s using the unique VarioSpeed™ function. Operating speeds are site adjustable without altering the bottom bar mass. Speeds may be dictated by those authorities having jurisdiction for ‘safety in use’ according to the location, nature or function of each unit. In the event of a mains supply power failure, the curtain is retained in the open position for a pre-determined period (nominally 30 minutes), using battery back-up power. At the end of the period, the barrier assembly will deploy.

Fire resistance:

120 minutes (2 hours) integrity.

Radiation resistance:

20 minutes.

Product certification, performance and/ or testing:

Complete active fire curtain barrier assemblies are certified by an independent accredited certification body operating to ISO/ IEC 17065:2012.
Complete active fire curtain barrier assemblies have been tested for fire resistance to BS EN 1634-1. The barrier assembly achieved 90 minutes integrity and 20 minutes radiation.
Complete active fire curtain barrier assemblies have passed tests for durability to BS EN 14600:2005 (500 cycles).
Motor(s) used within active fire curtain barrier assemblies have passed elevated temperature operational tests to BS 8524-1:2013, Annex G.

Approving standards:

The following standards apply to this product:

BS EN 1634-1:2018, Fire resistance and smoke control tests for door, shutter and, openable window assemblies and elements of building hardware. Fire resistance tests for doors, shutters and openable windows.
BS EN 1363-1:1999, Fire resistance tests – Part 1: General requirements.
BS EN 14600, Doorsets and openable windows with fire resisting and/ or smoke control characteristics – Requirements and classification.
BS 8524-1:2013, Annex G, “Test method for reliability of motor operation at elevated temperatures”.
BS EN ISO 1716:2010, Reaction to fire tests for products. Determination of the gross heat of combustion (Calorific value).
BS 476 Pt 6, Fire tests on building materials and structures. Method of test for fire propagation for products.
BS 476 Pt 7, Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products.
BS EN 13823, Reaction to Fire Tests – Single Burning Item.
BS EN 13501-1:2007+A1:2009, Fire classification of construction products and building elements. Classification using test data from reaction to fire tests.
BS EN ISO 14184-1:2011. Textiles. Determination of formaldehyde. Free and hydrolysed formaldehyde (water extraction method).
BS EN ISO 9001:2015 Quality management system.
BS EN ISO 14001:2015, Environmental management system.

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