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BS 7273-4 PDF

BSI, the business standards company has revised BS Code of Practice for the operation of fire protection measures – Part 4: Actuation of release . BS Code of practice for the operation of fire protection measures – part 4: Actuation of release mechanisms for doors was published on. The British Standard BS is a ‘Code of practice for the operation of fire protection measures’ specifically for the ‘Actuation of release mechanisms for .

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This question is for testing whether you are a human visitor and to prevent automated spam submissions. However, it should be remembered that this type of system might be inappropriate in certain environments such as banks, hospitals and prisons, due to security issues, where doors could be held open to allow access to people who should have restricted movement.

The recommendations also cover how the mechanisms to unlock, release or open doors interface with the fire detection and fire alarm systems. If the listed faults occur in either the door management system, the fire detection system, or the interconnection between the two, the system should perform as it would in the event of a fire and release the doors.

This is intended to make the recommendations clearer and to remove possible confusion where a single diagram has been used to convey several principles applying to detector siting and spacing There have been changes in terminology to assist users of the standard.

Only a very few of the more intelligent systems can identify whether for instance a fault on a single detector will impact the operation of the door release system. Category C applications require additional consideration as they apply when the fire system connects to the release system indirectly, for example via an access control system.

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Revised diagrams for the siting and spacing of the smoke detectors in relation to electrically held-open fire doors Inclusion of which category of actuation is appropriate for a particular application Simplified recommendations and terminology, with some of the commentary text tabulated and moved to new informative annexes.

Accept and continue Learn more about the cookies we use and how to change your settings. You are here Home. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Adhering to BS is increasingly important, as the guidance in Annex A of the Code of Practice is now normative, which means that if control of doors is performed by a fire detection system the requirements of the category must be met.

FIA Publish New technical documents on BS – International Fire Protection

Simon Foulkes, Product Owner at Gent by Honeywell, examines this revised code of practice and explains why more attention should be given to this important subject. This is a full revision of the standard and introduces the following principal changes:. This is a full revision of the standard and introduces the following principal changes: For example, selecting a Category A solution must be considered for premises used by the public such as shops, theatres and public transport, as well as schools, hotels and care homes.

It helps to ensure that a building can be safely evacuated where there are fire doors held open or exit doors that need to be released by the fire alarm system. Category A – the most stringent – is to be applied for the highest risk situations, requiring fail safe operation when the cabling forming the communication path is broken, and when there are faults or disconnections that prevent the operation of the mechanism in a fire.

Previously, a device local to the doors effectively switched the doors to fail safe mode and released electrically secured fire exits and closed fire doors held open on magnetic door retainers.

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BS covers the electrical control arrangements for actuation of mechanisms that unlock, release or open doors in the event of fire.

Take the smart route to manage medical device compliance. Search form Search Means of Escape. Notifier’s new BS CPD has been written by experts within the company, it enables delegates to gain a better understanding of how modern life safety technology can be used to increase a building’s safety by interfacing it with fire doors and secured fire exits. Text has been shortened and simplified to make the standard more straightforward to use. Title As one door opens If the guidelines are not followed it is likely that the fire door provision fails to satisfy a fire risk assessment.

BS 7273-4:2015

This standard relates to the engineering of fire alarm systems and in particular mechanisms to interface with fire doors and secured fire exits. Overview Product Details What is this standard about? Control of doors within a building by the fire detection system has been commonplace for many years. You may find similar items within these categories by selecting from the choices below:. Search all products by. However, this is not always the case and a truly fail safe mode is not achieved.

Code of practice for the operation of fire protection measures.

Worldwide Standards We can source any standard from anywhere in the world. Search results As one door opens Customers who bought this product also bought BS