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5.0 EVF and EVH Rigging System (cont’)
5.12 Important Details that Apply to the VRK and HRK Rigging Kits
Both the VRK and HRK kits include all necessary mounting hardware (as shown in Figures 14 and 15). Additionally, the VRK kits include a set of
The HRK horizontal rigging kits have a tie plate that is welded to the center of the rigging plate. This tie plate is for suspending the top systems in a cluster and for suspending lower systems below (with user- supplied hardware). It has six holes that fit a standard
Both the VRK and the HRK rigging plates use arrow designators and a series of letters by each of the mounting holes to ensure that the desired angle is achieved. Refer to Tables 5, 6, and 7 for a description of the appropriate arrow direction and letter.
All rigging plates except the
All
5.2 EV-I Rigging Primer
The following sections describe the clustering of EVF and EVH systems using one of the following three approaches:
1.
2.Optional VRK vertical rigging kits, in conjunction with the supplied eyebolt kits and user- supplied hardware.
3.Optional HRK horizontal rigging kits, in conjunction with the supplied eyebolt kits and user- supplied hardware.
In all cases, note that the weight of the cluster can be substantial and the building structure must be ca- pable of supporting the weight. (System weights are given in Figure 1.)
The optional VRK and HRK rigging kits are the most convenient way to assemble EVF and EVH clusters, offering a great deal of flexibility in box aiming angles. Using the supplied eyebolt kits with additional user- supplied hardware is more difficult, but does allow the most flexibility, since not only can box aiming angles be determined but also the boxes can be rotated about their aiming axes, which can improve coverage uniformity in certain venue shapes (EASE 4.2 allows this option).
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