FireMaster® A1 Concertina™ Closed - Circular - Concertina Fire Curtain

An electrically operated active fire curtain barrier assembly. Barrier assemblies comprises a metallic fabric, fan-folded and retained in a metal tray, powered by an internal 24 V d.c. electric motor, enclosed within a 1.2 mm steel box. A special bottom tray is fitted to the bottom of the curtain providing tension to the curtain with sufficient weight for the curtain to ‘fail-safe by gravity’.

The edges of the curtain are retained inside side guides, providing pressure resistance of 20 Pa. The 24 V motor contains an electromagnetic brake to arrest motion of the curtain when in the open position. 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 0.08 m/s).

Barrier assemblies have been tested to the requirements of BS EN 1634-1:2014 for ‘Fire Resistance’ (120 minutes integrity). Barrier assemblies have been tested to the requirements of BS EN 1634-1:2014 for ‘Radiant Heat Flux’ (30 minutes).

The fabric used in the barrier assemblies have been tested to BS 476-6 and BS 476-7.

Operation:

Barrier assemblies commences movement upon initiation of 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:

240 minutes (4 hours) integrity (closed).

Period of radiation:

54 minutes <15 kW/m² (closed).

Classification:

E240 EW30 C1 Grade 1, A1.

Product certification, performance and/ or testing:

• Barrier assemblies are certified by an independent accredited certification body operating to ISO/ IEC 17065:2012.
• Barrier assemblies have been tested for fire resistance to BS EN 1634-1, as required by BS 8524-1. The barrier assembly achieved 240 minutes integrity and 30 minutes radiation.
• Barrier assemblies have been tested for reliability, durability and self-closing to BS EN 14600 as required by BS 8524-1.
• Barrier assemblies have been tested for gravity fail-safe as required by BS 8524-1.
• Motor(s) used within the barrier assemblies in the above tests have been tested for operation at temperatures of 400°C as required by BS 8524-1.
• The fabric used in the barrier assemblies have been tested to BS EN ISO 1716.
• The fabric used in the barrier assemblies have been tested to BS 476 pt 6 and pt 7.
• The fabric used in the barrier assemblies have been tested to BS EN 13823.
• The fabric used in the barrier assemblies have been tested to BS 6853.
• The fabric used in the barrier assemblies have been classified as 'A1' to EN 13501-1.

Approving standards:

The following standards apply to this product:

• BS 8524-1:2013, Specification for active fire curtain barrier assemblies.
• BS 8524-1:2013, Specification for active fire curtain barrier assemblies.
• BS EN 1363-1:2012, Fire resistance tests – Part 1: General requirements.
• BS EN 1363-2:1999, Fire resistance tests – Part 2: Alternative and additional procedures.
• BS EN 13501-2:2007+A1, Fire classification of construction products and building elements. Classification using data from fire resistance tests, excluding ventilation services rating.
• BS EN 14600:2005, Doorsets and openable windows with fire resisting and/ or smoke control characteristics. Requirements and classification.
• BS EN ISO 1716:2010, Reaction to fire tests for products. Determination of the gross heat of combustion (Calorific value).
• BS 476-6, Method of test for fire propagation for products.
• BS 476-7, Method of test to determine the classification of the surface spread of flame for products.
• BS 6853: 1999 – Annex D.8.4, Methods for measuring smoke density.
• 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.