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ANSI Accepts E1.2 as an American National Standard
2000-08-02

The American National Standards Institute has accepted the ESTA Technical Standards Program's standard for aluminum trusses and towers as an American National Standard. ANSI E1.2-2000, Entertainment Technology - Design, Manufacture and Use of Aluminum Trusses and Towers, was accepted by ANSI's Board of Standards Review on August 2, 2000.

E1.2-2000 describes the design, manufacture and use of aluminum trusses, towers and associated aluminum structural components such as head blocks, sleeve blocks, bases, and corner blocks in the entertainment industry. Aluminum trusses and towers are standard structural components for rock and roll and other touring shows, and are used to support the overhead lighting and sound equipment, and also stage roofs when performances are held outdoors.

E1.2-2000 is not a standard for manufacturers only; it's for users too. It lays out how the trusses have to be handled, how often they need to be inspected and by whom, and it spells out the things a user has to consider when assembling a complete truss system. Users are helped by the standard's requirements that tell a truss manufacturer what information must be given so the user has the needed data. Of course, the standard also describes for the manufacturer the things that must be considered in the design and manufacture of aluminum trusses and towers, and associated structural components such as head blocks, bases, and corner blocks.

E1.2 was one of many projects of the Rigging Working Group. The group is also working on standards for manually powered and motorized rigging systems, stage house structural requirements, flying performers, speaker enclosures designed for overhead suspension, arena scoreboard rigging, and portable boom and base assemblies. Membership in the working group is open to all who have a material interest in the work of the group; ESTA membership is not a requirement.

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