An Introduction to BS 7273-4

It is common for a fire detection and fire alarm system to be linked to various forms of door hardware. Devices are actuated by the arrangements described in BS 7273-4 to open, release, or unlock doors that form part of the means of escape in the event of a fire, or that prevent the spread of smoke and fire into escape routes. Their use might also be required to make buildings, and circulation routes within buildings, accessible for groups of people, such as those with certain forms of disability.

  • Learn about commonly interfaced release mechanisms
  • Learn about ‘Critical’, ‘Standard’ and ‘Indirect’ categories of actuation
  • Which category of actuation is appropriate for an application
  • Design implications for L4 & L5 systems