Telex ELECTRO-VOICE X-Line TM manual Simplified Rating Guidelines

Page 29

Figure 11:

Simplified Rating Guidelines

Figure 11 includes a graph of the working-load weight-versus-angle limit rating for the X-Line enclosures. This working-load weight limit is applicable to every enclosure in an array, and includes the weight of that enclosure plus the total weight of all enclosures and rigging hardware suspended below it. The absolute enclosure angle is the vertical angle of that enclosure, where 0° represents an upright enclosure facing straight ahead (0° elevation angle). These working-Ioad- versus-angle limits take into account the complex forces generated in the front rigging straps, the rear rigging hinges, the enclosure and the (optional) pull-up line, as a result of the complex weight distribution throughout the array. Also included in the simplified structural-rating guidelines in Figure 11 are side-to-side and front-to-back angle limits for the front rigging straps on the top enclosure. These limits apply to the Xvsg and Xvsl rigging straps, as well as any custom rigging straps using the Xvsf fitting at the front of the top enclosure.

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

28

Image 29
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 Array Considerations Adjusting the Vertical Angles of the EnclosuresLine Rigging and Flying Techniques 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 Mechanical Engineering References ReferencesRigging References ELECTRO-VOICE Telex Communications, Inc /2002 Part Number 38110-158 Rev a