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BS EN 1155

BS EN 1155:1997 – Electrically Powered Hold-Open Devices

BS EN 1155:1997 – Electrically Powered Hold-Open Devices

 
This European standard specifies requirements for separate hold-open devices and also for hold-open mechanisms incorporated in a door closer. 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.
BS EN 1155:1997 classifies door furniture by using a 6-digit coding system.
 
Digit 1 – Category of use
Only one category of use is identified for electrically powered hold-open devices:
Grade 3: for doors for use by the public, and others, with little incentive to take care, i.e. where there is some chance of misuse of the door
 
Digit 2 – Number of test cycles
Two test durations are identified for devices manufactured to this European standard:
Grade 5: 50,000 test cycles, for all electrically powered hold-open devices
Grade 8: 500,000 test cycles, for all electrically powered hold-open and free-swing door closers and devices that contain operating arms
 
Digit 3 – Test door mass/size
Five door mass grades and related hold-open power sizes are identified according to Table 1 of this European standard.
 
Hold-open Power SizeRecommended Door Leaf Width max. mm kgTest Door Mass (kg)
395060
4110080
51250100
61400120
71600160
 
 
Digit 4 – Fire resistance
Only one grade of fire resistance is identified for electrically powered hold-open devices manufactured to this European standard:
Grade 1: suitable for use on fire/smoke door assemblies subject to satisfactory assessment of the contribution of the electrically powered hold-open device to the fire resistance of specified fire/smoke door assemblies
 
Digit 5 – Safety
Electrically powered hold-open devices are required to satisfy the Essential Requirement of safety in use. Therefore only grade 1 is identified
 
Digit 6 – Corrosion resistance
Five grades of corrosion resistance are identified in accordance with BS EN 1670:2007:
Grade 0: no defined corrosion resistance
Grade 1: mild resistance
Grade 2: moderate resistance
Grade 3: high resistance
Grade 4: very high resistance
 
 
Sources:
Door and Hardware Federation (DHF) Best Practise Guide - Electrically Powered Hold Open Devices for Swing Doors – BS EN 1155