Dynacord D 12 [20/40] General assembling instructions

Dynacord D 12 [20/40] General assembling instructions
Safety Factors
Accessories for the attachment of loudspeaker enclosures and PA systems are safety-relevant parts, which can endanger lives
and health of humans during failure. Therefore the following guidelines were written, whose safety factors are to be kept. These
are very highly put on due to wear, continuous stress etc. that also after use for many years still further safe handling can be
ensured. Unfortunately many regulations in the reference to safety factors cannot be assigned always clearly and are often
handled country-speci cally.
Various standards specify the safety factors:
Table according to BGV C1: Safety factor
Chains, ropes, shackles, eye bolts,
belts, hooks
Factor 12
Accessories and their connection
elements in mobile use
Factor 10
Accessories and their connection
elements for xed installation
Factor 5
The maximum working load of manufacturers of commercial lifting and rigging hardware show usually other safety factors than
demanded in thestage and studio areas.
Table according to DIN 292-2:
Lifting accessories Safety factor
Wire ropes Factor 5
Chains from welded links Factor 4
Textile ber belts Factor 7
Metal parts Factor 4
Inspection and Maintenance
For safety-relevant reasons a regular inspection of the accessories is inevitable.
Prior to each use inspect the loudspeaker enclosures for any wear, deformation, notches, cracks and corrosion. Replace any
damaged accessories immediately.
In many states the regular inspection of attachment and accessories is prescribed. It is advisable to accomplish an annual
inspection according to BGV C1 every 4 years by experienced technical personnel and additionally of a certi ed expert. In this
connection
leading of a test book is important, in which all accessories with their data and the recurring inspection are registered and are
thus available at any time for potential controls.
General Safety References
Assembly accessories of Dynacord loudspeaker systems may be used exclusively considering the assembly instruction and in
accordance with the BGV C1 regulations.
In order to keep the safety criteria it will be expressly pointed out that an overload can be caused in the event of non-observance
of the assembly instruction, changes of any kind of the accessories as well as installing the accessories to systems of other
manufacturers.
All components may be connected only in the prescribed way and used in such a way.
General Assembling Instructions
For attachment at trusses, ceilings, walls etc. xing material with suf cient ratings is to be used (DIN 18800)
All such mountings are to be done by an experienced person. For all screw connections the given maximum ratings for the
torques are to be kept (DIN 898).
Safeguards
Loudspeaker systems are to be secured within the range of a stage or studios against tilting or falling down according to GUV
6.15 (BGV C1).
This must happen with help of steel cables “(Safeties)” and/or chains, which are dimensioned for this working-load. A use of
plastic-encased wire ropes is not permissible expressly. The safety devices speci ed in the regulations as well as the maximum
head of 20cm are to be kept.
Flown loudspeakers must be secured always against falling down by an additional, independent suspension point. This happens
e.g. with a suf ciently dimensioned steel cable “(Safety)”.
20
User Supplied
Safety Cable

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