UL-SUBJECT-199D-1996.pdf
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1、STDmUL SUBJECT L77D-ENGL L79b 7275775 Ub87b47 237 March 22, 1996 1 SUBJECT 199D OUTLINE OF INVESTIGATION FOR GUARDS FOR SPRINKLERS Issue Number 3 MARCH 22, 1996 COPYRIGHT 1989,1996 UNDERWRITERS LABORATORIES INC. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=N
2、orth Carolina State University/5618801100 Not for Resale, 10/21/2006 22:27:08 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 GUARDS FOR SPRINKLERS - SUBJECT 199D MARCH 22, 1996 No Text on This Page Copyright Underwriters Laboratories Inc. Provided by IHS under license wi
3、th ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/21/2006 22:27:08 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-UL SUBJECT L77D-ENGL 177b 7275775 Ob89b5L 975 MARCH 22. 1996 GUARDS FOR SPRINKLERS . SUBJECT 199D CONTENTS FOREWORD INTRODUCTION
4、1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Units of Measurement . . . . . . . . . . . .
5、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 PERFORMANCE 4 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 10 Pan Distribution Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6、 . . . . . . . . . . . . . . . . 6 6 16 Pan Distribution Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 7 Impact Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 8 Fire Test . . .
7、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 9 Operation-Lodgement Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 MARKING 3 10 General . . . . . . . . . . . . . . . . . . . . . . . . .
8、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/21/2006 22:27:08 MDTNo reproduction or networking permitted without license from IHS
9、-,-,- STD UL SUBJECT L99D-ENGL L99b 9275795 ObAb52 821 4 GUARDS FOR SPRINKLERS - SUBJECT 199D MARCH 22,1996 FOREWORD A. This Outline of Investigation contains basic requirements for products covered by Underwriters Laboratories Inc. (UL) under its Follow-Up Service for this category within the limit
10、ations given below and in the Scope section of this Outline of Investigation. They are subject to revision as further experience and investigation may show is necessary or desirable. B. The observance of these requirements by a manufacturer is one of the conditions of the continued coverage of the m
11、anufacturers product. C. A product which complies with the text of this Outline of Investigation will not necessarily be judged to comply with the Outline of Investigation if, when examined and tested, it is found to have other features which impair the level of safety contemplated by these requirem
12、ents. D. A product employing materials or having forms of construction differing from those detailed in the requirements of this Outline of Investigation may be examined and tested according to the intent of the requirements and, if found to be substantially equivalent, may be judged to comply with
13、the Outline of Investigation. E. UL, in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of the manufacturer or any other party. The opinions and findings of UL represent its professional judgment given with due consideration to
14、 the necessary limitations of practical operation and state of the art at the time the Outline of Investigation is processed. UL shall not be responsible to anyone for the use of or reliance upon this Outline of Investigation by anyone. UL shall not incur any obligation or liability for damages, inc
15、luding consequential damages, arising out of or in connection with the use, interpretation of, or reliance upon this Outline of Investigation. F. Many tests required .by the Outline of Investigations of UL are inherently hazardous and adequate safeguards for personnel and property shall be employed
16、in conducting such tests. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/21/2006 22:27:08 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-UL SUBJECT L99D-ENGL L77b W 72
17、75775 Ob89b53 7b8 MARCH 22, 1996 GUARDS FOR SPRINKLERS - SUBJECT 199D 5 INTRODUCTION I Scope 1 .I These requirements cover sprinkler guards intended for installation in accordance with the Standard NFPA 13. The guards are to be installed on specific models of pendent, upright or intermediate level s
18、prinklers as indicated in the installation instructions for the guards. The guards are intended to protect sprinklers from mechanical damage. 1.2 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this Outli
19、ne of Investigation, and that involve a risk of fire, electric shock, or injury to persons shall be evaluated using the appropriate additional component and end-product requirements as required to maintain the level of safety as originally anticipated by the intent of this Outline of Investigation.
20、A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this Outline of Investigation is not judged to comply with this Outline of Investigation. Where appropriate, revision of requirements are proposed and adopted in conforma
21、nce with the methods employed for development, revision, and implementation of this Outline of Investigation. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this Outline of Investigation shall comply with the requirements for that component. 2.2 A component is not r
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