d&b Vi - Manual (Page 5)

1.3.1. Wind loads
WARNING!
Potential risk of personal injury and material
damage!
When setting up fixed outdoor installations, unpredictable wind
loads must be taken into account.
The dedicated fixing points for the array assemblies described in
this manual are detailed in Þ Chapter 5. "Hoisting and aiming the
array" on page 33.
1.4. d&b ArrayCalc calculator software / TI 385
For both acoustic and safety reasons d&b line arrays must be
designed using the d&b ArrayCalc simulation tool. It is available as
a native stand-alone application for both Microsoft Windows (XP
or higher) and Mac OS X (10.4.10 or higher) operating systems
and can be downloaded at www.dbaudio.com .
The use of ArrayCalc is described in "TI 385 d&b Line array
design, ArrayCalc". This TI includes typical array configurations
within the permitted load limits. Carefully read this TI to become
familiar with the operation and behavior of ArrayCalc and in
particular with the mechanical load conditions and limitations.
The TI can be downloaded from the d&b website at
www.dbaudio.com .
1.5. Secondary safety
WARNING!
Potential risk of personal injury and/or
damage to material!
The secondary safety suspension must be independent of the
primary suspension points and capable of carrying the total system
weight.
The additional safety device must be mounted in a way that the
array is caught by the safety device without any drop and swing in
the event that the primary suspension fails.
d&b ArrayCalc
d&b Vi Rigging manual (1.2 EN) 5