SUSPENSION SAFETY INSTRUCTIONS
General use:
Speakers can be heavy. Use a hand cart or some other device to move the speakers from one location to
another.
When pole or suspension mounting, always have at least one other person to assist.
Do not stand directly in front of the speakers while in operation as this may result in hearing damage or
hearing loss.
Suspending speakers: Things you need to know
You are liable for damages to property and injuries to individuals if a loudspeaker enclosure fails.
Know the rules for safe rigging. Improper practices can lead to great bodily harm including death.
Educate yourself at a safe rigging seminar. In North America, professionals like Rigging SeminarsTM or ATS
have classes which will educate you to these important practices. A quick internet search for “safe rigging
seminars” will yield several options.
Meet and establish a relationship with a local licensed mechanical or structural engineer. Get in the habit
of asking them questions instead of guessing about their answers. Learn from what they tell you.
Make certain you have the proper insurance coverage.
Research and understand the codes, practices, and requirements in the venues where you intend to
operate your sound system.
General Hardware Information
Any hardware used in an overhead suspension application must be load rated for the intended use.
Local
hardware stores do not usually stock these products.
Generally, this type of hardware is available
from rigging supply houses, industrial supply catalogs and specialized rigging distributors. Hardware that
is intended for overhead suspension will comply with ASME B30.20. The correct hardware will be
identified with a working load limit (WLL) and a manufacturing code that allows it to be traced should
there be a manufacturing lot that does not meet guaranteed specifications. Remember, when consulting
with a licensed and bonded rigger be sure to ask about the hardware and demand that the hardware
meet all minimum load and regulatory requirements.
Attachment to Structures
A licensed and bonded Mechanical or Structural Engineer must approve the location and means of
attachment to the structure before you suspend anything, including speakers. They will know the
building and/or safety codes and will help you ensure a safe suspension of the loudspeaker.
Safety first!
Anything suspended without safety in mind can result in serious injury or death.
