Telex ELECTRO-VOICE X-Line TM manual Rigging-Safety Warning

Page 3

Rigging-Safety Warning

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

This document details general rigging practices appropriate to the entertainment industry, as they would apply to the rigging of Electro-Voice X-Line loudspeaker systems. It is intended to familiarize the reader with standard rigging hardware and techniques for suspending X-Line loudspeaker systems overhead. Only persons with the knowledge of proper hardware and safe rigging techniques should attempt to suspend any sound systems overhead. Prior to suspending any Electro-Voice X-Line loudspeaker systems overhead, it is essential that the user be familiar with the strength ratings, rigging techniques and special safety considerations outlined in this manual. The rigging techniques and practices recommended in this manual are, of necessity, in general terms to accommodate the many variations in loudspeaker arrays and rigging configurations. As such, the user is expressly responsible for the safety of all specific X-Line loudspeaker array designs and rigging configurations as implemented in practice.

All the general rigging material contained in this manual is based on the best available engineering information concerning materials and practices, as commonly recognized in the United States, and is believed to be accurate at the time of the original printing. As such, the information may not be directly applicable in other countries. Furthermore, the regulations and requirements governing rigging hardware and practices may be superseded by local regulations. It is the responsibility of the user to ensure that any Electro-Voice loudspeaker system is suspended overhead in accordance with all current federal, state and local regulations.

All specific material concerning the strength ratings, rigging techniques and safety considerations for the X-Line loudspeaker systems is based on the best available engineering information concerning the use and limitations of the products. Electro-Voice continually engages in testing, research and development of its loudspeaker products. As a result, the specifications are subject to change without notice. It is the responsibility of the user to ensure that any Electro-Voice loudspeaker system is suspended overhead in accordance with the strength ratings, rigging techniques and safety considerations given in this document and any manual update notices. All non-Electro-Voice associated hardware items necessary to rig a complete X-Line loudspeaker array (grids, chain hoists, building or tower supports and miscellaneous mechanical components) are the responsibility of others.

Electro-Voice

July, 2002

ELECTRO-VOICE®￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿

2

Image 3
Contents Line Rigging Manual Table of Contents Rigging-Safety Warning Introduction Overview of the X-Line Flying System Line Rigging SystemTypical X-Line Flying System Enclosure Rigging Hardware Details Xvls Loudspeaker System Xfil1 and Xfil2 Loudspeaker Systems Xfil1 & Xfil2 Front Rigging with Xvsd or Xvhp Straps Rear Rigging Hinge Details External Rigging Hardware Details Rear Rigging Hardware Installation DetailsELECTRO-VOICE Front Rigging Strap Details Front Rigging Hardware Installation Details ELECTRO-VOICE Xvbp Pull-Up Bar Details ATM X-Line Grid Details ATM Flyware X-Line GridRS-1B Double-Stud Rigging Fitting Adjusting the Vertical Angles of the Enclosures Line Rigging and Flying TechniquesArray Considerations Rectangular Box Xvls or Xsub to Trapezoidal Box Xvlt Enclosure Vertical Angle AdjustmentsDeciding Whether to Use an Xvhg or Xvhl at the Grid Rigging an Array with Boxes Using X-Line Dollies Flying with Stacking Dollies Flying with Front Dollies Pull-Up Techniques Structural Rating Overview Working-Load Limit and Safety Factor DefinitionsSimplified Structural-Rating Guidelines Simplified Rating Guidelines ELECTRO-VOICE Complex Structural-Rating Analysis MAX +∅ -∅ Working-Load Limit 750 lb 340 kg At Any Angle ELECTRO-VOICE Xfil1 & Xfil2 Overall Enclosure Structural Ratings Xvls, Xvlt & Xsub Overall Enclosure Structural RatingsXvbp Pull-Up Bar Structural-Strength Ratings Xvbp Structural RatingsRS-1B Structural-Strength Ratings Xfil1 & Xfil2 Front Rigging Point Structural Ratings Xvls, Xvlt & Xsub Front Rigging Point Structural RatingsWind Loading Electro-Voice Structural-Analysis ProceduresElectro-Voice X-Line Loudspeaker Systems Rigging Inspection and PrecautionsELECTRO-VOICE References Rigging ReferencesMechanical Engineering References ELECTRO-VOICE Telex Communications, Inc /2002 Part Number 38110-158 Rev a