6.0
WHEN APPLYING THE STRUCTURAL RATING GUIDELINES TO ANY EVA LOUDSPEAKER SYSTEM SUSPENDED OVERHEAD, THE USER MUST OBEY THE FOLLOWING RULES:
1.Never exceed 720 lb (327 kg) total column weight of suspended loudspeakers, accesso- ries and cabling. (Typically 8 EVA 2082S modules)
2.If a second grid is used at the bottom of the array, the angle between the suspension lines must never be allowed to exceed 60° as shown in Figure 18. Do not use
3.The suspended column must be perpendicular (plumb) to within +/- 5 degrees as shown in Figure 20.
4.If a spreader bar is suspended from two points, the angle between those two suspension lines must not exceed 60 degrees (Maximum 30 degrees from plumb each) as shown in Figures 21 and 22.
5.Never attempt to suspend EVA systems overhead by any other method than the use of
Figure 20:
EVA arrays (angle shown exaggerated for illustration purposes)
28 |
