The barrier assemblies comprise 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 50 cycles using back-up power; closing speed of 0.1 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 ‘Fire Resistance’ (120 minutes integrity).

Operation:

Barrier assemblies commence movement upon initiation of BMS alarm or power or system failure, and fully deploy 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:

15 minutes.

Product certification, performance and/ or testing:

Complete barrier assemblies are certified by an independent accredited certification body operating to ISO/ IEC 17065:2012.
Complete barrier assemblies have been tested for fire resistance to BS EN 1634-1. The barrier assembly achieved 120 minutes integrity and 15 minutes radiation.
Complete barrier assemblies have passed tests for durability to BS EN 12605 (500 cycles).
Complete barrier assemblies have passed tests for durability to BS EN 12605 (500 cycles).

Approving standards:

The following standards apply to this product:

BS EN 1634-1:2014 +A1:2018, 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 13501-2:2003, Fire classification of construction products and building elements. Classification using data from fire resistance tests, excluding ventilation services rating.
BS EN 12605:2000, Industrial, commercial and garage doors and gates. Mechanical aspects. Test methods.
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 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 ISO 9001:2008, Quality management system.
BS EN ISO 14001:2004, Environmental management system.

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