This European Standard specifies requirements for separate hold-open devices and also for hold-open mechanisms incorporated in a door closer intended to be used on fire/smoke compartmentation doors . Electrically powered hold-open devices for swing doors manufactured according to this European Standard can hold a swing door at a fixed position or can allow the door to swing freely. In each case interruption of the electrical supply will cause the controlled door to close positively.
Electrically powered hold-open devices manufactured in accordance with this European Standard are recommended for use wherever there is a requirement for reliable hold-open and release of self-closing fire/smoke door assemblies.
Whilst these devices can incorporate smoke or fire detection elements, the performance of those particular elements is outside the scope of this European Standard.
Door closing devices are covered by EN 1154.
NOTE The series of European Standards EN 54 covers the requirements, test methods and performance criteria of resettable smoke/fire detectors.
BS EN 1155:1997 history
0000 BS EN 1155:1997(2006)
1997BS EN 1155:1997 Building hardware - Electrically powered hold-open devices for swing doors - Requirements and test methods