Qualifications And Activities - PSSO CLA-228 MKII TOP Bedienungsanleitung

Many people deceive themselves by thinking that noise is something they can get accustomed to. It is
possible that a positive opinion of a certain noise can reduce the physiological reaction, but the slow impacts
on the inner hearing must not be neglected: over stimulation and continuous elimination of the Cortic organ's
hair cells.
The reason why some people have got accustomed to a certain noise level and are no longer disturbed is
that they have already suffered a hearing damage. This damage make the insensitive to those frequencies
forming the loudest part of the noise. Getting accustomed to noise does not mean anything other than trying
to get along with the hearing loss in everyday life. The hearing loss itself cannot be healed, it can only be
compensated by hearing aids.
Subjectively, the hearing loss feels like dampened ears. This effect weakens with the time, but a loss in
hearing sensitivity often remains.
In order to relax the hearing sufficiently, the noise level should not exceed 70 dB(A) for 10 hours. Higher
noise levels during this relaxing period can prevent the relaxation and promote a permanent hearing damage
(Tinnitus) or hearing loss. Therefore: Whoever wants to maintain his hearing should use hearing protectors!

Qualifications and activities

When using or installing truss systems, the following qualifications are required:
"Diplom" engineer
"Meister" / "Assistent" for
event technology / head
rigger / light crew chief
"Sachkundiger für Veran-
staltungs-Rigging"
"Fachkraft für
Veranstaltungstechnik"
"Veranstaltungsoperator"
Person with appropriate
briefing
Source: VPLT Codes of Practice SR 1.0 – Provision and Use of Truss Systems, 10.02.2005
Planning Structural
and analysis
system
selection
yes yes
yes no
no no
no no
no no
no no
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Manage- On-site
ment and inspection
super-
vision
yes yes
yes yes
no yes
no no
no no
no no
Attachment Assembly
of truss of trusses
yes yes
yes yes
yes yes
yes yes
yes yes
no yes