BS EN 1155
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.