BS EN 1155 : 1997
Electrically powered hold open devices for swing doors
UNION products applicable: UNION Door closers N8899
GUIDE TO CLASSIFICATION
BS EN 1155 classifies electrically powered door closers under a six digit coding system.
Each digit refers to a particular feature of the product measured against the standard's performance requirements.
Digit 1 - Category of use
- grade 3: for doors for use by the public, and others, with little incentive to take care.
Digit 2 - Number of test cycles
- grade 5: 50 000 cycles. For all electrically powered hold open devices
- grade 8: 500 000 cycles. For all electrically powered hold open devices and free swing door closers and devices that contain operating arms.
Digit 3 - Hold open power size
Five hold open power sizes are identified:
|
Hold open power size
|
Recommended door leaf width
Max (mm)
|
Test door mass
(kg)
|
Overload test drop weight
(kg)
|
Test door friction
Max (N m)
|
|
3
|
950
|
60
|
15
|
0,3
|
|
4
|
1100
|
80
|
18
|
0,4
|
|
5
|
1250
|
100
|
21
|
0,5
|
|
6
|
1400
|
120
|
27
|
0,6
|
|
7
|
1600
|
160
|
36
|
0,8
|
Digit 4 - Suitability for use on fire/smoke compartmentation doors
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 resistance of specified fire/smoke door assemblies.
Digit 5 - Safety
All 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
Grade 0: No defined corrosion resistance
Grade 1: Mild resistance
Grade 2: Moderate resistance
Grade 3: High resistance
Grade 4: Very high resistance
EXAMPLE
The following denotes an electrically powered hold-open device complying with grade 3 category of use, with durability grade 5 without operating arms, suitable for use on fire/smoke door assemblies, with safety grade 1 and with a mild resistance to corrosion.