UL 228:5ED 2006-01-26
Current
The latest, up-to-date edition.
Door Closers-Holders, With or Without Integral Smoke Detectors
Hardcopy
26-01-2006
Important note : All end users must be registered with an Account prior to user licenses being assigned.
Foreword
Introduction
1 Scope
2 General
Construction
3 General
4 Frame and enclosure
5 Mounting of parts
6 Corrosion protection
7 Insulating material
8 Current-carrying parts
9 Wiring methods
10 Internal wiring
11 Installation wiring methods
12 Spacings
Performance
13 General
14 Normal operation
15 Endurance test
16 Jarring test
17 Input test
18 Temperature test
19 Holding power test
20 Dielectric voltage-withstand test
21 Abnormal operation test
22 Fire tests of swinging door closer-holders with
integral smoke detectors
23 Smoldering smoke test
24 Insulating materials test
Marking
25 General
Appendix
A Standards for components
These revisions to UL 228 are being issued to address universal upkeep of UL Standards for Safety.
| DevelopmentNote |
new child REV 2 2022 is now added
|
| DocumentType |
Standard
|
| Pages |
0
|
| ProductNote |
new child REV 2 2022 is now added
|
| PublisherName |
Underwriters Laboratories
|
| Status |
Current
|
These requirements apply to swinging door closers equipped with integral electromechanical or electromagnetic holders and which may be provided with integral smoke detectors.
| UL 268A:4ED 2008-12-11 | Smoke Detectors for Duct Application |
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