1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 203A Sway Brace Devices for Sprinkler System Piping STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTE
2、D MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Sway Brace Devices for Sprinkler System Piping, UL 203A First Edition, Dated December 18, 2015 Summary of Topics This revision to ANSI/UL 203A is being issued as an editorial upda
3、te, which includes a correction to the table referenced in ASTM A1023/A1023M, and a correction in the column labeled Pipe Size , Table 9.2. The corrected requirements are substantially in accordance with Proposal(s) on this subject dated April 10, 2015 and September 25, 2015. Text that has been chan
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8、asonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. JUNE 27, 2016 UL 203A tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 27,
9、2016 UL 203A tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DECEMBER 18, 2015 (Title Page Reprinted: June 27, 2016) 1 UL 203A Standard for Sway Brace Devices for Sprinkler System Piping Prior to the rst edition, the
10、requirements for the products covered by this standard were included in the Outline of Investigation for Sway Brace Devices for Sprinkler System Piping, UL 203A. First Edition December 18, 2015 This ANSI/UL Standard for Safety consists of the First Edition including revisions through June 27, 2016.
11、The most recent designation of ANSI/UL 203A as an American National Standard (ANSI) occurred on December 18, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or proposals for revisions on any part of the Standard may be submitted to UL at
12、 any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all c
13、opyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 203A-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DECEMBER 18, 2015
14、SWAY BRACE DEVICES FOR SPRINKLER SYSTEM PIPING - UL 203A 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Components 4 3 Units of Measurement .4 4 Undated References 4 5 Glossary .5 CON
15、STRUCTION 6 General 7 7 Materials .8 8 Protective Coatings .9 PERFORMANCE 9 Load Test 9 10 Zinc Coating Thickness Test for Cable 17 11 Metallic Coating Thickness Tests .17 12 Restraint Device Load Test 19 13 Assembly Test of Sway Brace Fitting 19 14 Torque Test of Shear Bolts 20 MARKINGS 15 General
16、20 INSTALLATION INSTRUCTIONS 16 General 21 Appendix A A1 Examples of Sway Brace Devices A1 DECEMBER 18, 2015 SWAY BRACE DEVICES FOR SPRINKLER SYSTEM PIPING - UL 203A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 T
17、hese requirements cover sway brace devices intended to protect re protection system piping in locations subject to earthquakes. These devices are intended for installation in accordance with the Standard for the Installation of Sprinkler Systems, NFPA 13. 1.2 These requirements cover restraint devic
18、es intended to restrict movement of re protection piping. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this Standard shall comply with the requirements for that component. 2.2 A component is not required to comply with a specic requirement that: a) Involves a feat
19、ure or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specic components are
20、 incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 3 Units of Measurement 3.1 Values state
21、d without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 4 Undated References 4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or sta
22、ndard. DECEMBER 18, 2015 SWAY BRACE DEVICES FOR SPRINKLER SYSTEM PIPING - UL 203A 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5 Glossary 5.1 For the purposes of this Standard, the following denitions apply. 5.2 BRACE MEMBER Structural c
23、omponent of a sway brace. 5.3 BRACE MEMBER NON-RIGID Standard Specication for Stranded Carbon Steel Wire Ropes for General Purposes, ASTM A1023/A1023M, Table 7, Galvanized Steel Cable, as referenced by Standard Guidelines for the Structural Applications of Steel Cables for Buildings, ASCE-19. 5.4 FA
24、STENER ADAPTER Device to facilitate the use of additional fasteners for mounting a sway brace (See Figure A.4). 5.5 LOAD RATING, NONRIGID ASSEMBLY The published load rating is less than or equal to the manufacturers specied minimum breaking strength of the cable divided by 1.5. 5.6 LOAD RATING, RIGI
25、D SWAY BRACE FITTINGS The published maximum force to be applied to a component of a rigid sway brace. 5.7 NPS (NOMINAL PIPE SIZE) A dimensionless designator for pipe sizes dened in standards including: a) Standard Specication for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless, A
26、STM A53/A53M; b) Standard Specication for Electric-Resistance-Welded Steel Pipe, ASTM A135/A135M; and c) Standard Specication for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use, ASTM A795/A795M used to replace terms such as “Nominal Diameter” and
27、 “Nominal Size.” 5.8 PERMANENT DEFORMATION The distortion of a system pipe or brace member in excess of the requirements in Table 13.1. 5.9 RESTRAINT DEVICE A mechanism that is a part of a hanger assembly or a separate device and is intended to limit interaction of the pipe with other portions of th
28、e structure and to limit stresses in the pipes to permissible limits. 5.10 RIGID SWAY BRACE An assembly intended to attach the system piping to the building structure to resist earthquake loads in two directions commonly consisting of: a) A sway brace tting; b) A brace member; and c) A structure att
29、achment tting. Examples of sway brace devices are shown in Appendix A. JUNE 27, 2016 SWAY BRACE DEVICES FOR SPRINKLER SYSTEM PIPING - UL 203A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.11 STRUCTURE ADAPTER A device to facilitate the
30、attachment of a sway brace to a specic building structural member. 5.12 STRUCTURE ATTACHMENT FITTING A device used to attach a sway brace directly to the building structure. 5.13 SWAY BRACE FITTING A device used to attach the brace member of the sway brace to the system piping. 5.14 SWAY BRACE FITTI
31、NG ADAPTER A device to transition the attachment of the sway brace tting to the sway brace member. 5.15 SWAY BRACE, LATERAL A sway brace intended to resist differential movement perpendicular to the axis of the system piping. See Figure 5.1 as an example. This is generated text for gtxt. 5.16 SWAY B
32、RACE, LONGITUDINAL A sway brace intended to resist differential movement parallel to the axis of the system piping. See Figure 5.2 as an example. This is generated text for gtxt. Figure 5.1 Lateral sway brace (End view) DECEMBER 18, 2015 SWAY BRACE DEVICES FOR SPRINKLER SYSTEM PIPING - UL 203A 6UL C
33、OPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.17 SWAY BRACE, NON-RIGID A sway brace intended for resisting loads in tension only. See Figure A.3 as an example 5.18 SWAY BRACE, RIGID A sway brace intended for resisting both tension and compre
34、ssion loads. CONSTRUCTION 6 General 6.1 A sway brace assembly shall be constructed for connection to the system piping and be able to withstand the appropriate test load specied in the Load Test, Section 9, for the corresponding pipe size. 6.2 A sway brace tting shall be designed to directly attach
35、to the system piping. 6.3 A brace member of a rigid sway brace shall be such that the maximum slenderness ratio l/r, where l is the length of the brace and r is the least radius of gyration, does not exceed that specied in the Standard for the Installation of Sprinkler Systems, NFPA 13. 6.4 The manu
36、facturer of rigid type sway brace components and devices, ttings or structure attachment ttings are not required to supply the brace member. If the brace member is not provided, the manufacturers installation instructions shall indicate the appropriate sway brace member conguration, material and siz
37、e. Figure 5.2 Longitudinal sway brace (Side view) DECEMBER 18, 2015 SWAY BRACE DEVICES FOR SPRINKLER SYSTEM PIPING - UL 203A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6.5 A structure attachment tting or fastener adapter shall be const
38、ructed to use fasteners to secure the tting to the building structure. When fasteners are provided with a structure attachment tting, they shall be capable of withstanding the required test loads specied in Load Test, Section 9. 6.6 A structure attachment tting or fastener adapter shall be construct
39、ed with the number of fastener holes and hole diameter sizes to accommodate the loads specied in the Standard for the Installation of Sprinkler Systems, NFPA 13. 6.7 A structure attachment tting or fastener adapter shall be constructed with the hole diameter(s) not exceeding 1/16 in. larger than the
40、 intended fastener diameter. 6.8 A lateral sway brace component shall not be used as a part of longitudinal sway brace assemblies unless investigated for such use. Likewise, a longitudinal sway brace component shall not be used as part of lateral sway brace assemblies unless investigated for such us
41、e. 6.9 A Non-Rigid Sway Brace (Tension Only) using cable as the brace member shall consist of an assembly of cable and necessary hardware to secure the cable to structure attachment tting or system pipe. 6.10 Galvanized carbon steel cable used in Non-Rigid Sway Braces (Tension Only) shall comply wit
42、h the requirements of the Standard Specication for Stranded Carbon Steel Wire Ropes for General Purposes, ASTM A1023/A1023M, Table 7 for 7x7 and 7x19 small diameter specialty cord or equivalent. Stainless steel cable may also be used provided that it meets the requirements of the Standard Specicatio
43、n for Stainless Steel Wire Strand, ASTM A368 or the Standard Specication for Stainless Steel Rope Wire, ASTM A492 (as specied in Standard for the Installation of Sprinkler Systems, NFPA 13 and Standard Guidelines for the Structural Applications of Steel Cables for Buildings, ASCE 19). 6.11 A restrai
44、nt device shall be constructed for sprinkler branch line piping of 2 NPS and smaller. 7 Materials 7.1 Components of sway brace assemblies shall be made of ferrous materials. Exception: Nonferrous materials, such as plastics and zinc alloys, shall be permitted to be used when they have been investiga
45、ted to verify resistance to external re exposure, and loss of strength with aging and environmental exposure. JUNE 27, 2016 SWAY BRACE DEVICES FOR SPRINKLER SYSTEM PIPING - UL 203A 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 8 Protectiv
46、e Coatings 8.1 A sway brace tting or structural attachment tting or part of a tting made of at iron or steel, the thickness of the metal shall be at least #7 gauge (nominal 0.1793 inch), unless protected by coating as described in 8.2. 8.2 When protective coatings are used in accordance with 8.1, th
47、e following coatings meet the intent of this requirement: a) A zinc coating having a minimum thickness of 0.0005 inch (0.0127 mm) on all outside surfaces and 0.0003 inch (0.0076 mm) on all inside surfaces. The thickness of the coating is to be established by the Metallic Coating Thickness Test, Sect
48、ion 11. b) A hot-dipped mill galvanized sheet steel conforming with the coating designation G90 in Table I of the Standard Specication for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process, ASTM A653/A653M, with not less than 40 percent of the zinc
49、 on any side, based on the minimum single spot test requirement in this ASTM Designation. The weight of the zinc coating is to be determined by any equivalent method; however, in case of question, the weight of the coating shall be established in accordance with the test method of the Standard Test Method for Weight (Mass) of Coating or Iron or Steel Articles with Zinc or Zinc-Alloy Coatings, ASTM A90/A90M. The edges of a stamping complying with this requi
