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LARA manual / LARA - SUB
SAFETY PRECAUTIONS
Thismanualoffersallthenecessaryinformationforying
DAS Audio systems. This document contains safety precautions
and a description of the elements to be used.
TocarryoutanyoperationsrelatedtoyingaDASAudio
system,itisrecommendedtoreadthepresentdocumentrst
and comply with the warnings and advice given. The goal is
to allow the user to become familiar with the mechanical
elements required to y the acoustic system, as well as the
safetymeasurestobetakenduringandafterassembly.
Onlyexperiencedinstallerswithadequateknowledgeof
theequipmentandlocalsafetyregulationsshouldyspeaker
boxes. It is the user´s responsibility to ensure that the systems
tobeown(includingyingaccessories)complywithstateand
localregulations.
The working load limits in this manual are the results
of tests carried out by independent laboratories. It is the
user´s responsibility to follow and comply with safety factors,
resistance values, periodical supervisions and warnings given
in this manual. Product improvement through research and
development is on going at DAS Audio, specications are
subjecttochangewithoutnotice.
It is common practice to apply 5:1 safety factors for
enclosures and static elements. For slings and elements
exposed to material fatigue due to friction and load variation
thefollowingratiosmustbemet;5:1forsteelcableslings;4:1for
steelchainslingsand7:1forpolyesterslings.Thus,anelement
withabreakingloadlimitof1000kgmaybestaticallyloaded
with200kg(5:1safetyfactor)anddynamicallyloadedwith142
kg(7:1safetyfactor).
When a system is own, the working load must be
lowerthantheresistanceofeachindividualyingpointinthe
enclosure, as well as each box.
Rigging hardware should be regularly inspected and
defectiveunitsreplaceddiscarded.Itishighlyrecommended
that you implement an equipment inspection and maintenance
program, including reports to be lled out by the inspectors.
Localregulationsmayexistthat,incaseofaccident,mayrequire
you to submit evidence of inspection reports and corrective
actions carried out after defects were found.
Absolutelynorisksshouldbetakenwithregardstopublic
safety.
When ying enclosures from the ceiling or other
structures, extreme care should be taken to assure the load
bearingcapabilitiesofthestructuressothattheinstallationis
absolutely safe. Do not y enclosures from unsafe structures.
Consult a certied professional if needed. Use gloves and all
necessaryprotectiveequipmenttoavoidpersonalinjuries.
AllyingaccessoriesthatarenotsuppliedbyDASAudio
are the user´s responsibility. Use at your own risk.