suspending truss from chains
Wed, 27 July 2005, 11:20 amWalter Plinge3 posts in thread
suspending truss from chains
Wed, 27 July 2005, 11:20 amTo eliminate seating blind spots for a wrap-around theatre audience,it is proposed to hang the front of our square lighting truss from four chains at stage front but leave the rear of the truss mounted on lighting trees (for mounting cloth backdrops).
Q1. Do I need to use rated lifting chain (very exy), or will over-the-counter maring-grade galvanised chain of adequate dia. suffice?
While the Shire-owned recreation centre is more than adequately engineered to hang additional load-bearing points, a half-hanging / half-hoisted lighting truss presents the following insurance dilemna...
* Everything hanging from the building is covered by the Shire's insurance policy.
* Everything hanging from the lighting truss when hoisted from four winch-up lighting trees is covered by the PA hire company's insurance policy.
Q2. Is there a precedent which reconciles this dilemna that will make negotiations with both the Shire and the Sound & Lighting hire company and their insurers happy to:
A. share liability
or
B. Determine acceptance of liability by one or the other?
Q1. Do I need to use rated lifting chain (very exy), or will over-the-counter maring-grade galvanised chain of adequate dia. suffice?
While the Shire-owned recreation centre is more than adequately engineered to hang additional load-bearing points, a half-hanging / half-hoisted lighting truss presents the following insurance dilemna...
* Everything hanging from the building is covered by the Shire's insurance policy.
* Everything hanging from the lighting truss when hoisted from four winch-up lighting trees is covered by the PA hire company's insurance policy.
Q2. Is there a precedent which reconciles this dilemna that will make negotiations with both the Shire and the Sound & Lighting hire company and their insurers happy to:
A. share liability
or
B. Determine acceptance of liability by one or the other?
Re: suspending truss from chains
Mon, 15 Aug 2005, 02:53 amWalter Plinge
in answer to your question 1.
Yes all loads should be lifted by rated equipment, if there is a point to hang the chain from that has sufficient capacity, then you should be able to hang a chain block, which you can hire from most rigging or lighting companies. ALL loads hoisted must be rigged by licenced riggers.
in relation to your insurance questions you have been misled.
The public liability is the venues, the suppliers and the performing companies responsibilityand any other parties associated with the rig proposed. If an accident occurs Workcover investigate all persons involved with the installed components. It is then up to the insurance companies to determine who was liable. this may be 1 person/company, or all, depending on the circumstances of the accident.
When installing the truss it is LAW that it is erected by competant and licenced persons, which means engaging a rigger or rigging company.
SAFETY SHOULD NEVER BE COMPROMISED BY BUDGET!!!
Yes all loads should be lifted by rated equipment, if there is a point to hang the chain from that has sufficient capacity, then you should be able to hang a chain block, which you can hire from most rigging or lighting companies. ALL loads hoisted must be rigged by licenced riggers.
in relation to your insurance questions you have been misled.
The public liability is the venues, the suppliers and the performing companies responsibilityand any other parties associated with the rig proposed. If an accident occurs Workcover investigate all persons involved with the installed components. It is then up to the insurance companies to determine who was liable. this may be 1 person/company, or all, depending on the circumstances of the accident.
When installing the truss it is LAW that it is erected by competant and licenced persons, which means engaging a rigger or rigging company.
SAFETY SHOULD NEVER BE COMPROMISED BY BUDGET!!!