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UL 555:7ED 2006-07-12
Current
The latest, up-to-date edition.
![header thumbnail](/images/publishers\ul_cover.gif)
Fire Dampers
Hardcopy
12-07-2006
Foreword
Introduction
1 Scope
2 General
3 Glossary
Construction
4 General
5 Heat responsive devices
6 Sleeves
7 Protection against corrosion
8 Actuators
Performance
9 General
10 Fire endurance and hose stream test
11 Cycling test
12 Dust loading exposure test
13 Salt-spray exposure test
14 Spring closing force test
15 Operation test
16 Temperature degradation/cycling test
17 Duct impact test
18 Hydrostatic strength test for pneumatic actuators
Marking
19 General
Installation and operating instructions
20 General
Appendix A - Standard for components
Appendix B - Standard time-temperature curve for control
of fire tests
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