Bs En 1634-3 Pdf

[Marietta Bleasdale]

Withinthe United Kingdom, there is a requirement for the provision of smoke control doors. This is to be found in Approved Document B to the Building Regulations (England and Wales) amendment 2000, Part E of the Scottish Technical Standards amendment 2001 and Technical Booklet E under the Building Regulations (Northern Ireland).

The requirement for fire door smoke compliance is indicated in these documents by the suffix S applied to the fire door classification. For example, a 30-minute fire resisting door is designated FD30 and when this is required as a smoke control door, it is designated FD30S. The smoke control required in the UK currently relates only to cold (ambient temperature) smoke. When tested in accordance with EN 1634-3:2004, the classification or designation will be defined as Sa (ambient smoke control).

The smoke control criterion required in the United Kingdom is 3m3 of air loss per hour per linear metre of joint between door leaves and the doorframe or transom when measured at 25Pa pressure. The test procedure prescribes that during test, the gap between the bottom edge of the door leaf and the floor or threshold is sealed. The reason for this is to acknowledge that a uniform pressure is unlikely to be experienced over the complete face of a door in service and the sealing of the bottom of the door compensates for a reduction in pressure which is likely to be experienced.

In a fire situation, the production of smoke and toxicity is directly related to the ignitability, heat release and potential toxicity of the elements within the given area. All materials, from soft furnishings, fabrics, furniture and carpets will emit varying types and concentrations of smoke production.

To put all this into context, the permitted air/smoke leakage through a typical single leaf FD30S door with perimeter door gaps of 3mm is 15m3/hour whilst without smoke seals, the same door would leak 200m3/hour.

In addition large perimeter door gaps, over 3mm, have the potential to fill an escape corridor within minutes, rendering the escaping occupants effectively blind. In this situation, emergency lighting or the presence of natural lighting would be non-effective.

To comply with the guidance given in the Approved Documents, supplementary sealing systems can significantly improve and reduce the amount of leakage through the doorset assembly. The Building Regulations ADB specify that the doorset assembly should demonstrate compliance with either BS476: Part 31.1 or BS EN 1634: Part 3:2004.

Pyroplex Fire Smoke and Acoustic seals already hold test evidence to BS476: Part 31.1 however we have enhanced our test portfolio for the following fire door strips and test them in accordance BS EN 1634-3: 2004:

Applications: Atrium, Lobbies and Receptions, Opening in Walls, Egress and Corridor Separations, Boundary Protection, Compartmentation, Stairs and Escalators, Lifts and Lift Lobbies, Protected Means of Escape.

The ViiFire fire curtain barrier is a vertical fire curtain barrier that is tested to BS EN 1634-1 and is third party certified to protect from fire for 120 minutes. It has also been tested to BS EN 1634-3 to can offer Smoke Control using smoke seals.

Available in standard sizes up to 3 metres x 3 metres, our ViiFire fire curtain barrier can also be purchased as a supply only product. With fixing options to suit all types of ceiling configurations, the ViiFire can be integrated with both solid and suspended ceilings and will remain hidden within the ceiling until deployed.

There are a number of Optional Extras available for Fire Curtains and Smoke Curtain Barriers. These include Emergency Egress Buttons, Audio and Visual Warning Systems and Smoke and Heat Detectors.

There are different features available for the Coopers Fire range of fire curtains and smoke curtain barriers. Click on the button below to find out more about Optional Extras, Drives and Controls, Site Wiring Diagrams and other product-related downloads.

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In the test setup a flexible wall was simulated by placing two wall parts back to back, which could be secured with clamps on a wooden frame fitted with a rubber seal. The wall parts were made up of two layers of plasterboard with two rows of five wall boxes mounted at both sides of the wall panel.

The tests have been successful, especially for one type of smoke control wall box, with the measured maximum leakage rate of the 20 boxes under 1 m3/u at 10 Pa Sa and S200 and under 6 m3/u at 50 Pa S200. In comparison, a single door may have up to 20 m3/u for S200.

In the Netherlands the Dutch standard NEN 6075 designates the EN 1634-3 for testing other construction components than doors on smoke control. However in the current NEN standard no maximum flow rate is set for electrical outlet wall boxes. On a defined maximum flow rate may be anticipated in the updated version which is expected to come into effect in 2019.

Over the years, with the evolution of the international regulatory panorama and the entry into force of European standards EN 1634-1 for fire doors and EN 1634-3 for smoke-tight doors, CSI has obtained the necessary recognition to operate as a testing laboratory authorised by the Italian Ministry of the Interior and accredited according to international quality management systems.

The laboratory's authorisation allows it to use the test reports issued for the homologation procedures, foreseen by the Ministerial Decree of 21 June 2004, which permit the installation of these products in activities subject to the application of fire prevention standards and criteria.

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