UL 1626A-2007 outline of investigation for fire testing of residential sprinklers for use with smooth, flat, sloped ceilings having pitches not exceed

1、UL 1626A-2007 outline of investigation for fire testing of residential sprinklers for use with smooth, flat, sloped ceilings having pitches not exceeding 8-12-issue number 1Document Was Downloaded 8By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT

2、 AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMay 22, 20071SUBJECT 1626AOUTLINE OF INVESTIGATIONFORFIRE TESTING OF RESIDENTIAL SPRINKLERS FOR USE WITH SMOOTH,FLAT, SLOPED CEILINGS HAVING PITCHES NOT EXCEEDING 8/12Issue Number: 1May 22, 2007Summary of TopicsThis is the

3、 First Issue of the Subject 1626A Outline of Investigation forFire Testing of Residential Sprinklers for Use With Smooth, Flat, SlopedCeilings Having Pitches not Exceeding 8/12.The UL Foreword is no longer located within the UL Standard. For informationconcerning the use and application of the requi

4、rements contained in thisStandard, the current version of the UL Foreword is located onCOPYRIGHT ? 2007 UNDERWRITERS LABORATORIES INC.Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORD

5、ISTRIBUTION WITHOUT PERMISSION FROM ULMAY 22, 2007SUBJECT 1626A2No Text on This Page? .bzfxw#ff66ff ?Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FR

6、OM ULCONTENTSINTRODUCTION1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7、. . . . . . . . . . . . . . . . . . . . . . . . . .43 Units of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 Undated References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8、. . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 Fire Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55.2 Test Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65.3 Test method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8MAY 22, 2007 SUBJECT 1626A 3Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FR

11、OM ULINTRODUCTION1 Scope1.1 These requirements cover the fire testing of residential sprinklers for use with smooth, flat, slopedceilings having pitches not exceeding 8/12 for installation in accordance with the Standards for Installationof Sprinklers Sprinkler Systems in One-and Two-Family Dwelling

12、s and Manufactured Homes, NFPA 13D;Installation of Sprinkler Systems in Residential Occupancies up to and Including Four Stories in Height,NFPA 13R; and and Installation of Sprinklers, NFPA 13.1.1 effective May 22, 20211.2 Residential sprinklers covered herein are also required to comply with the fi

13、re and other applicablerequirements in the Standard for Residential Sprinklers for Fire-Protection Service, UL 1626.1.2 effective May 22, 20211.3 The requirements contained herein are not intended to restrict the application of representative fireand other tests for special sprinklers, as referenced

14、 in NFPA 13, that are intended to provide protectionfor specific fire hazards.1.3 effective May 22, 20211.4 These fire test methods and requirements contained herein are based upon the following installationconditions:a) A maximum distance from the floor to the ceiling peak of 24 ft (7.3 m).b) A max

15、imum of two sprinklers are installed within 3 ft (0.9 m). vertically of the peak.c) For sidewall sprinklers discharging across the slope, sprinklers are installed on one side ofthe room only.d) Installation is for smooth, flat ceilings only that do not extend into or serve as a ceiling for anupper l

16、evel floor in the structure.1.4 effective May 22, 20212 Components2.1 Except as indicated in 2.2, a component of a product covered by this Outline shall comply with therequirements for that component.2.1 effective May 22, 20212.2 A component is not required to comply with a specific requirement that

17、:a) Involves a feature or characteristics not needed in the application of the component in theproduct covered by this Outline; orb) Is superseded by a requirement in this Outline.2.2 effective May 22, 2021MAY 22, 2007SUBJECT 1626A4? .bzfxw#ff66ff ?Document Was Downloaded By Rice, Shi SHIMISHENGFor

18、Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2.3 A component shall be used in accordance with its rating for the intended conditions of use.2.3 effective May 22, 20212.4 Specific components ar

19、e accepted as being incomplete in construction features or restricted inperformance capabilities. Such components are intended for use only under limited conditions, such astemperatures not exceeding specified limits, and shall be used only under those specific conditions forwhich they have been inv

20、estigated.2.4 effective May 22, 20213 Units of Measurement3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.3.1 effective May 22, 20214 Undated References4.1 Any undated reference to a code or standard appearing in the requirem

21、ents of this Outline shall beinterpreted as referring to the latest edition of that code or standard.4.1 effective May 22, 20215 Fire Test5.1 General5.1.1 When fire tested as described in 5.1.2 5.3.5, a residential sprinkler shall limit temperatures asspecified in 5.1.1 (a) (d) when tested at each r

22、ated spacing referenced in the installation instructions.Additionally, a maximum of two residential sprinklers shall operate within the test room and no sprinklershall operate in the doorways. The sprinklers shall limit temperatures as followsa) The maximum temperature 3 inches (76 mm) below the cei

23、ling at either location asillustrated in Figures 5.1, 5.4, 5.7, or 5.10 shall not exceed 600 F (316 C).b) The maximum temperature 5-1/4 feet (1.6 m) above the floor shall not exceed 200 F (93C).c) The temperature at the location described in (b) shall not exceed 130 F (54 C) for morethan any continu

24、ous 2-minute period.d) The maximum ceiling material temperature 1/4 inch (6.4 mm) behind the finished ceilingsurface shall not exceed 500 F (260 C).See Figure 5.1 (pendent, upright, flush, recessed pendent, and concealed pendent sprinklers), or Figures5.4, 5.7, or 5.10 (sidewall sprinklers) for temp

25、erature measuring locations.5.1.1 effective May 22, 2021MAY 22, 2007 SUBJECT 1626A 5Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL 5.3.5.5.1.2

26、 effective May 22, 20215.2 Test Arrangement5.2.1 General5.2.1.1 Pendent, upright, flush, recessed pendent, and concealed pendent sprinklers are to be subjectedto both high and low corner fire test arrangements for the applicable rated spacings as illustrated inFigures 5.1 to 5.3. Sidewall sprinklers

27、 discharging across the slope are to be subjected to both high andlow corner fire test arrangements for the applicable rated spacings as described in Figures 5.4 to 5.6.Sidewall sprinklers discharging down the slope are to be subjected to both high and low corner fire testarrangements for the applic

28、able rated spacings as described in either Figures 5.7 to 5.9, or 5.10 to 5.12.5.2.1.1 effective May 22, 20215.2.2 Test room5.2.2.1 The test room dimensions for pendent, upright, flush, recessed pendent, and concealed pendentsprinklers are to be as specified in Figures 5.1 to 5.3. The test room dime

29、nsions for sidewall sprinklersdischarging across the slope are to be as specified in Figures 5.4 to 5.6. The test room dimensions forsidewall sprinklers discharging down the slope are to be as specified in Figures 5.10 to 5.12 for a reducedscale test. For sidewall sprinklers discharging down the slo

30、pe, the manufacturer shall be permitted to havethe option to conduct the test in a standard scale test room as specified in Figures 5.7 to 5.9.5.2.2.1 effective May 22, 20215.2.2.2 The test room ceiling is to be covered with acoustical panels or gypsum board attached to furringstrips. Acoustical pan

31、els used in the 4 by 4 foot (1.2 by 1.2 m) area directly over the fire source are tomeasure 2 by 4 foot (0.6 by 1.2 m), be 1/2 inch (12.7 mm) thick, have a density of 13.5 1.5 lb/ft3 (21624 kg/m3), and have a maximum flame spread index of 25 when tested in accordance with the Standardfor Test for Su

32、rface Burning Characteristics of Building Materials, UL 723. For each test, new acousticalpanels in the 4 by 4 foot (1.2 by 1.2 m) area directly over the fire source are to be installed.5.2.2.2 effective May 22, 20215.2.2.3 The test room is to have provisions for ventilation through two door opening

33、s on opposite testroom walls. Each opening is to be 7 feet 4 inches (2.2 m) high. The door widths are to be as specified inFigures 5.1 to 5.12.5.2.2.3 effective May 22, 20215.2.2.4 Douglas fir, 3-ply panels measuring 4 by 8 feet (1.2 by 2.4 m) are to be placed on two of the testroom walls extending

34、out from a common corner. For the fire tests conducted in the low corner of theroom, one panel is to be placed on each wall with an additional piece of plywood installed on the slopedwall so that it extends to the ceiling. For the fire tests conducted in the high corner of the room, one anda half pa

35、nels are to be placed on each wall so that the total height of the plywood is 12 ft (3.65 m) andthe top portion of the second panel is attached directly to the wall. The panels are to be 1/4 inch (6.4 mm)thick with each ply constructed of Douglas fir. The plywood panels are to be conditioned at 70 5

36、F (212.8C) and 50 10 percent. relative humidity for at least 72 hours prior to test. They are to be placed onthe walls by being attached to 1/2-inch (12.7 mm) thick wood furring strips. The Douglas fir plywoodpanels shall have the burning characteristic properties specified in the Standard for Resid

37、ential Sprinklersfor Fire-Protection Service, UL 1626.5.2.2.4 effective May 22, 2021MAY 22, 2007SUBJECT 1626A6? .bzfxw#ff66ff ?Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBU

38、TION WITHOUT PERMISSION FROM UL5.2.3 Fire source5.2.3.1 The fire source is to be in accordance with the Standard for Residential Sprinklers forFire-Protection Service, UL 1626 with the modifications as specified in 5.2.2.4.5.2.3.1 effective May 22, 20215.2.4 Sprinkler installation5.2.4.1 Residential

39、 sprinklers are to be installed in the test room as specified in Figures 5.1 to 5.12 foreach fire test. For all sprinkler styles, the sprinklers installed in the doorways shall be as follows:a) The same heat responsive element and temperature rating as the other sprinklers within theroom; andb) Inst

40、alled such that the center of the heat responsive element is 2 inches (50.8 mm) belowthe top of the doorway.5.2.4.1 effective May 22, 20215.2.4.2 Provisions shall be made to ensure that the sprinklers installed in the doorway are not wetted bythe sprinklers discharging water within the test room.5.2

41、.4.2 effective May 22, 20215.2.4.3 The residential sprinklers located at the ceiling are to be installed in reducing pipe fittings havinga 1 inch (25 mm) inlet and an outlet the same size as the sprinkler inlet and be supplied with water through1 inch (25 mm) piping. The minimum nipple length leadin

42、g to the sprinkler fitting shall not be less than 10inches (254 mm).5.2.4.3 effective May 22, 20215.2.4.4 Pendent and upright sprinklers are to be installed with their deflectors located 3 inches (76 mm)below the ceiling or as specified in the installation instructions if other than 3 inches (76 mm)

43、 is specified.A pendent sprinkler also intended to be installed as a recessed pendent sprinkler shall be tested in themost recessed position in lieu of 3 inches (76 mm) below the ceiling. Flush and concealed pendentsprinklers are to be installed in their intended location as specified in the install

44、ation instructions. Pendent,upright, flush, recessed pendent and concealed pendent sprinklers are to be tested in two orientations foreach fire location. One test is to be orientated such that the sprinkler frame arms or deflector pins areparallel to the short room wall and a second test is to be co

45、nducted with the sprinkler frame arms ordeflector pins rotated 90 degrees.5.2.4.4 effective May 22, 20215.2.4.5 Recessed and concealed sprinklers having vented escutcheons are to be installed and tested ina manner that inhibits airflow through the escutcheons (blocked) by placing a 36 by 15-1/2 by 8

46、 inch (910by 390 by 200 mm) R-25 fiberglass insulating batt over the sprinkler5.2.4.5 effective May 22, 20215.2.4.6 A sidewall sprinkler shall be tested as follows:a) With its deflector located 4 inches (100 mm) below the ceiling; andb) With its deflector located at the maximum distance below the ce

47、iling as specified in theinstallation instructions if the maximum distance exceeds 6 inches (150 mm) below the ceiling.5.2.4.6 effective May 22, 2021MAY 22, 2007 SUBJECT 1626A 7Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL

48、NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5.3 Test method5.3.1 The test room is to have an ambient air temperature of 80 5F (27 3C) measured at thethermocouple located 3 inches (76 mm) below the ceiling in the center of the room. All water from previoustesting

49、shall be removed such that there is no visible water on the floor, ceiling, or walls.5.3.1 effective May 22, 20215.3.2 The temperatures at each thermocouple location are to be continuously recorded during the testusing 20 AWG (0.81 mm) chromel-alumel thermocouples or thermocouples providing equivale

50、nttemperature measuring results. When water impingement impacts the thermocouple measurement, thethermocouples are to be shielded from water impingement using metallic tape attached to the wire. Thetape is to be formed into an umbrella shape, large enough to protect the thermocouple ends.5.3.2 effec

51、tive May 22, 20215.3.3 Sixteen ounces (0.5 L) of water and eight ounces (0.24 L) of heptane are to be placed in a pandirectly below the wood crib located 2 inches (50 mm) from the wall panels.5.3.3 effective May 22, 20215.3.4 The heptane in the pan located beneath the crib is to be ignited and the h

52、eptane soaked cottonwicks are to be ignited immediately following the heptane pan ignition.5.3.4 effective May 22, 20215.3.5 The fire test is to be conducted for 30 minutes after the ignition of the wood crib, unless after 10minutes, all the combustibles are extinguished or only the wood crib is sus

53、taining combustion at whichpoint the test is to be terminated. The water flow to the sprinklers is to be the minimum flow rate specifiedin the installation instructions for the sprinkler coverage area tested.5.3.5 effective May 22, 2021MAY 22, 2007SUBJECT 1626A8? .bzfxw#ff66ff ?Document Was Download

54、ed By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSloped ceiling residential fire tests for pendent sprinklers thermocouple placementFigure 5.1 effective May 22, 2021M

55、AY 22, 2007 SUBJECT 1626A 9Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSloped ceiling residential fire test for 8/12 pitch pendent sprinkler

56、s low corner arrangementFigure 5.2 effective May 22, 2021MAY 22, 2007SUBJECT 1626A10? .bzfxw#ff66ff ?Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FR

57、OM ULSloped ceiling residential fire test for 8/12 pitch pendent sprinklers high corner arrangementFigure 5.3 effective May 22, 202136;(0,9m)WLMAY 22, 2007 SUBJECT 1626A 11Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT A

58、UTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSloped ceiling residential fire test for 8/12 pitch sidewall sprinklers discharging across the slope thermocouple placementFigure 5.4 effective May 22, 2021MAY 22, 2007SUBJECT 1626A12? .bzfxw#ff66ff ?Document Was Downloaded

59、By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSloped ceiling residential fire test for 8/12 pitch sidewall sprinklers discharging across the slope low corner arrangem

60、entFigure 5.5 effective May 22, 2021MAY 22, 2007 SUBJECT 1626A 13Document Was Downloaded By Rice, Shi SHIMISHENGFor Use By KUANTECH CO LTD12039 : 8/6/2007 - 7:18 PMUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSloped ceiling residential fire