Electro-Voice EVF-1181S, EVF-2121S, EVH-1152S Symmetry for Horizontal Clusters using HRK Kits

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6.0 Rigging-Strength Ratings and Safety Factors (cont’)

6.53 Symmetry for Horizontal Clusters using HRK Kits

The cluster’s center of gravity is centered under the two suspension points in a two-over-two cluster (see Figure 33a) or between the suspension points in a three-over-three cluster (see Figure 33b).

Both the cluster’s weight and center of gravity must be symmetrical about the cluster’s center line. For individual enclosure weights and centers of gravity, refer to section 1.

Figure 33a:

Figure 33b:

Suspension of a symmetrical two-over-two

Suspension of a symmetrical three-over-three

horizontal cluster using HRK horizontal

horizontal cluster using HRK horizontal

rigging kits

rigging kits

Electro-Voice EVF/EVH User Manual

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Contents
Page Table of Contents Rigging-Safety Warning Table of Contents cont’Introduction EVF-1122S/96 example Introduction cont’End View Front View Side View 143.0 lb 64.9 kg 145.5 lb 66.1 kg Dimension Key suspension point dimensions as shown in figure aboveEVF Front-Loaded Series Finishes and Colors AvailableEVH Horn-Loaded Series Tool List Accessories for EVF and EVH SystemsDesigning an EVF/EVH Cluster General Aiming and Placement GuidelinesDirectivity Break Frequency Defined Basic Clustering Guidelines Designing an EVF/EVH Cluster cont’Coverage-Uniformity Target Multiple-Source Interference in Clusters See text for more details NormalizedReducing Multiple-Source Interference EVF Full-Range Designing an EVF/EVH Cluster cont’ Recommended Preflight Procedures Preparing EVF and EVH Systems for InstallationPassive/Biamp Crossover Configuration Rotation of High-Frequency Waveguides EVF systems Preparing EVF and EVH Systems for Installation cont’Digital Signal Processing Full-Range Systems in Passive Mode Preparing EVF and EVH Systems for Installation cont’ Introduction Flying EV-Innovation EV-I Loudspeaker System EVF and EVH Rigging SystemVRK-1 or HRK-1 connection VRK-2 or HRK-2 connection VRK-1 or HRK-1 connectionVRK-1 rigging kit with parts identified EVF and EVH Rigging System cont’VRK-2 rigging kit with parts identified VRK-3 rigging kit with parts identifiedHRK-2 rigging kit with parts identified HRK-1 rigging kit with parts identifiedHRK-3 rigging kit with parts identified EV-I Rigging Primer Important Details that Apply to the VRK and HRK Rigging KitsEVF and EVH Rigging System cont’ Eyebolt Installation All-Eyebolt Clusters Hardware not shown, using aTwo-system horizontal cluster using Systems, using an extreme trim angle Systems, using a moderate trim angleVRK Kits and Vertically Rigged Clusters HRK Kits and Horizontally Rigged Clusters EVF Full-Range Six-enclosure horizontal hang of three systems above Assembly Instructions for VRK and HRK kits Short in front Toward grille Working Load Limit and Safety-Factor Definitions Rigging-Strength Ratings and Safety FactorsStructural Rating Overview Rigging-Strength Ratings and Safety Factors cont’All-Eyebolt Structural Ratings Limits for ALL-EYEBOLT Clusters onlyWLL for M10 eyebolts in the EVI-M10K eyebolt kit Working Load Limits for EyeboltsLeft-to-Right All-Eyebolt Cluster Angles Suspension-Line AnglesVRK Rigging Structural Ratings for Vertical Clusters Limits for Vertical Clusters only WLL for M10 eyebolts in the EVI-M10K eyebolt kit Left-to-Right Vertical Cluster Angles Maximum load and maximum height for horizontal clusters HRK Rigging Structural Ratings for Horizontal ClustersTwo cluster using HRK rigging kits Using Tie Plates as Main Load-Bearing SuspensionSuspension-Line Angles for HRK Kits Symmetry for Horizontal Clusters using HRK Kits Left-to-Right Horizontal Cluster Angles Inner Connection PointsRatings for Outdoor Applications with Wind Loading Electro-Voice Structural-Analysis ProceduresRigging Inspections and Precautions Rigging printed ReferencesMechanical Engineering printed Rigging Web sitesPage Page Electro-Voice
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