UL 203A:2019-08 Sway Brace Devices for Sprinkler System Piping.
1.1 These requirements cover sway brace devices intended to protect fire 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 devices intended to restrict movement of fire protection piping.
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 specific requirement that:
a) Involves a feature 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b) Is superseded by a requirement in this standard.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 Specific components are 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 specified limits, and shall be used only under those specific conditions.
3 Units of Measurement
3.1 Values stated 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 standard.
5.1 For the purposes of this Standard, the following definitions apply.
5.2 BRACE MEMBER — Structural component of a sway brace.
5.3 BRACE MEMBER NON-RIGID — Standard Specification 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-1 9.
5.4 FASTENER ADAPTER — Device to facilitate the use of additional fasteners for mounting a sway brace (See Figure .4).UL 203A pdf download.