Staging Technical Materials

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What If A Load Brake Hoist Is Installed Upside-Down?

Staging What If

November 2013

Back in early 2010, we published an article entitled “What If I need to use a single wire load-brake winch to fly a batten?” and we hadn’t, however, considered the possibility that someone would install a load brake hoist upside-down.

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What If My Hoist Has A Higher Safety Factor Than My Shackle?

Staging What If

October 2013

The issue of Safety Factors of hoists and the rigging that hangs those hoists seemed to be a topic of some confusion and misconceptions when a straw poll was taken, so this seems to be a good place to start.

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What If Something Fails?

Staging What If

August 2013

Contrary to what the title of this article may suggest, we’re not going to discuss how you deal with a teenage child failing the HSC or a driver’s test. We’re going to look at how a well designed system handles failures – a design technique known as “Fail-Safe” (also referred to as Fail-to-Safe, Failsafe, Fail-Secure, etc).

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What If We Add A Second Brake To Make The Hoist "Safer"?

Staging What If

July 2013

I was speaking recently to a colleague who is now based in Europe and does a lot of work in the Middle East, and he described to me an “incident” that occurred recently with a motorised chain hoist of well known origin and manufacture, that suffered a catastrophic failure during acceptance testing.

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What If Something Goes Wrong And You Have To Justify Your Actions?

Staging What If

June 2013

In these articles, we try to discuss topics that give people cause to think and consider what they do in their own venues or businesses and how they could do things a little better and safer. We also try to inform you of your obligations and responsibilities and to generally foster a discussion about improving safety.

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What If My Stage Machinery Keeps Tripping RCDs?

Staging What If

March 2013

This issue comes up quite regularly when installing Stage Machinery, particularly when the machine is relatively small and operates from a single phase power supply.

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What If I Need To Choose A Chain Hoist Control System? - Part 4

Staging What If

February 2013

In the last article, we made the brave statement that we would attempt to de-mystify some of the jargon surrounding compliance to various safety standards – just what is the difference between a Category 3 circuit, an inverter claiming Performance Level d or a control system with a Safety Integrity Level 3?

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What If I Need To Choose A Chain Hoist Control System? - Part 2

Staging What If

December 2012

Following on from part one, in this article we explore further into the concept of a "group stop".

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What If There Were One Set Of Rules For Motorised Chain Hoists?

Staging What If

July 2012

There have been a number of comments about the first part of this article, along the lines of “lots of information, but do you have a simple summary?” So on that note, we might defer a discussion of controllers and safety features, and instead present a summary of the various German, British and Australian classifications and codes.

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What If Your Drapes Have No Fire Tags Attached?

Staging What If

June 2012

You walk into an Auditorium, Theatre, Theatrette, School, Club or Public Hall to advise on sound, lighting or stage equipment and notice that curtains have no fire tags attached to the rear.

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What If There Were One Set Of Rules?

Staging What If

April 2012

Much noise has been made in the press in the last 18 months or so about the “Harmonisation of WHS Legislation” (Work, Health and Safety for the uninitiated) across every State in this fair land of ours.

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What If I'm Lifting A Truss With 4 Chain Hoists?

Staging What If

December 2011

The recent spate of rigging accidents in the news has spawed numerous discussions with clients regarding the risks involved in moving and hanging loads overhead.

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What If I Add Another Chain Hoist To The Truss?

June 2011

This issue comes up regularly and is one to file under the category of "trap for young players".

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What If I Have A Multicore Lighting Cable With A Shared Earth?

Multicore-Cable

February 2011

The number of earth conductors required in a lighting multicore cable is a question that will get you 5 answers for every 4 people you ask, so let's see if we can't bust a few myths.

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What If I Need To Fly A Performer From A Point Hoist Or Hauling Line?

September 2010

Over at Jands Staging this question arises more often than you would think. From a one-off in a theatre production to a flying angel in a wine tower at a fancy five star bar. How is it done, what is legal, what is safe?

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Selection of Multicore Cables for Stage Lighting Wired Bars

Jands JLX-PRO

October 2009

Are you faced with selecting the type of multicore cable to use in a stage lighting system? Are you faced with questions such as: Can I use a shared earth? What size conductors should the cable have? How much power can I draw per circuit? How long can the cable be? What colours do the conductors come in? This article explores some of the regulatory requirements for multicore cables and examines some of the maths involved in making your choice of cable safe and legal.

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Alert! Do your hoists comply with codes for holding/movement of loads above people?

October 2008

The ubiquitous loud and clunky chain hoists used by the production industry for decades are making way for a new genre of equipment that prescribes to the modern industry requirements of safe. The need to move loads during a show into an exact pre-prescribed position for effect purposes; over an audience or invisibly to enhance production values has driven the need for these products. The dramatic increase in safety dictated by these requirements has driven the need for a totally new approach to equipment safety specification.

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