1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNovember 17, 20061SUBJECT 199DOUTLINE OF INVESTIGATIONFORGUARDS FOR SPRINKLERSIssue Number: 4NOVEMBER 17, 2006Summary of TopicsThis new issue of SU 199D is being issued through ULs electronicpubl
2、ishing system to ensure format uniformity between the PDF andHTML versions of the document. No substantive changes have beenincorporated in the document.The UL Foreword is no longer located within the UL Standard. For informationconcerning the use and application of the requirements contained in thi
3、sStandard, the current version of the UL Foreword is located onULStandardsInfoNet at: http:/ 2006 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNOVEMBER 17, 2006SUBJECT 199D2No Text on This PageUL COPYRIGHTED MA
4、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 Components 43 Units of Measurement .5PERFORMANCE4 General 55 10 Pan Distribution Test .56 16 Pan Distribution Test .57 Impact Test 58 Fire Test .79 Operation-Lodgement Test .8MARKI
5、NG10 General .8NOVEMBER 17, 2006 SUBJECT 199D 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover sprinkler guards intended for installation in accordance with the StandardNFPA 13. The guards are to
6、 be installed on specific models of pendent, upright or intermediate levelsprinklers as indicated in the installation instructions for the guards. The guards are intended to protectsprinklers from mechanical damage.1.2 A product that contains features, characteristics, components, materials, or syst
7、ems new or differentfrom those covered by the requirements in this Outline of Investigation, and that involve a risk of fire,electric shock, or injury to persons shall be evaluated using the appropriate additional component andend-product requirements as required to maintain the level of safety as o
8、riginally anticipated by the intentof this Outline of Investigation. A product whose features, characteristics, components, materials, orsystems conflict with specific requirements or provisions of this Outline of Investigation is not judged tocomply with this Outline of Investigation. Where appropr
9、iate, revision of requirements are proposed andadopted in conformance with the methods employed for development, revision, and implementation of thisOutline of Investigation.2 Components2.1 Except as indicated in 2.2, a component of a product covered by this Outline of Investigation shallcomply with
10、 the requirements for that component.2.2 A component is not required to comply with a specific requirement that:a) Involves a feature or characteristic not required in the application of the component in theproduct covered by this Outline of Investigation; orb) Is superseded by a requirement in this
11、 Outline of Investigation.2.3 A component shall be used in accordance with its recognized rating established for the intendedconditions of use.2.4 Specific components are recognized as being incomplete in construction features or restricted inperformance capabilities. Such components are intended fo
12、r use only under limited conditions, such ascertain temperatures not exceeding specified limits, and shall be used only under those specific conditionsfor which they have been recognized.Specific components are incomplete in construction features orrestricted in performance capabilities. Such compon
13、ents are intended for use only under limitedconditions, such as certain temperatures not exceeding specified limits, and shall be used only underthose specific conditions.NOVEMBER 17, 2006SUBJECT 199D4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION F
14、ROM UL3 Units of Measurement3.1 If a value for measurement is followed by a value in other units in parentheses, the first stated valueis the requirement.PERFORMANCE4 General4.1 Representative sample guards for sprinklers are to be examined for compliance with the constructionrequirements specified
15、on the manufacturers drawings.5 10 Pan Distribution Test5.1 The distribution of water from a sprinkler with its intended guard shall comply with the requirementsof the 10 Pan Distribution Test described in the Standard for Automatic Sprinklers for Fire ProtectionService, UL 199.5.2 In addition, the
16、water collection data from the water distribution tests with guards installed on thesprinklers shall be compared with the water collection data from the tests on the same sprinklers withoutthe guards installed. When significant variations in data between the two tests exist, the Fire Testdescribed i
17、n Section 8 is to be conducted.6 16 Pan Distribution Test6.1 Four sprinklers with their intended guard shall comply with the requirements of the 16 Pan DistributionTest described in the Standard for Automatic Sprinklers for Fire Protection Service, UL 199.6.2 In addition, the water collection data f
18、rom the water distribution tests with guards installed on thesprinklers shall be compared with the water collection data from the tests on the same sprinklers withoutthe guards installed. When significant variations in data between the two tests exist, the Fire Testdescribed in Section 8 is to be co
19、nducted.7 Impact Test7.1 Sprinkler and guard assemblies subjected to the Impact Test described in 7.2 7.6, shall:a) Show no evidence of visual damage to the sprinkler; andb) Comply with Operation-Lodgement Test described in the Standard for Automatic Sprinklersfor Fire Protection Service, UL 199.7.2
20、 Twelve sample sprinklers are to be assembled with their intended guard in accordance with themanufacturers installation instructions and divided into two groups of six assemblies each.7.3 Samples from the first group are to be tested individually by dropping a 1.18 lb (0.54 kg), 440stainless steel
21、ball, 2 inch (50.8 mm) in diameter, from a height of 2.5 feet (0.76 m) onto the end of theassembly as shown in Figure 7.1.This is generated text for figtxt.NOVEMBER 17, 2006 SUBJECT 199D 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.4 Sam
22、ples from the second group are to be tested individually by dropping a 1.18 lb (0.54 kg), 440stainless steel ball, 2 inch (50.8 mm) in diameter, from a height of 2.5 feet (0.76 m) onto the side, nearthe top of the guard as shown in Figure 7.2.This is generated text for figtxt.Figure 7.1Impact test o
23、n first group of samplesNOVEMBER 17, 2006SUBJECT 199D6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.5 Impact due to falling steel ball in both cases shall be located between support members of the guard.7.6 After impact, the sprinkler samp
24、les shall be visually examined to determine whether damage hasoccurred to the sprinklers and then subjected to the Operation-Lodgement Test described in the Standardfor Automatic Sprinklers for Fire Protection Service, UL 199.8 Fire Test8.1 In accordance with 5.2 and 6.2, sprinklers with their inten
25、ded guard shall comply with therequirements of the Fire Test described in the Standard for Automatic Sprinklers for Fire ProtectionService, UL 199.Figure 7.2Impact test on second group of samplesNOVEMBER 17, 2006 SUBJECT 199D 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIB
26、UTION WITHOUT PERMISSION FROM UL9 Operation-Lodgement Test9.1 Sprinklers with their intended guard shall comply with the requirements of the Operation-LodgementTest described in the Standard for Automatic Sprinklers for Fire Protection Service, UL 199.9.2 Twelve sample sprinklers in each style are t
27、o be assembled with their intended guard in accordancewith the manufacturers installation instructions and subjected to the Operation-Lodgement Test exceptthat two samples are to be tested at each pressure.MARKING10 General10.1 Sprinkler guards shall be marked with the following:a) Name or identifying symbol of the manufacturer or private labeler; andb) Model designation.NOVEMBER 17, 2006SUBJECT 199D8
