[SML] Question about codes

Bill Conner billconnerastc at gmail.com
Wed Feb 10 22:37:01 UTC 2021


Probably work better with hog wire - like a 4 x 4 grid - but not a concept
Ive ever have been fond of or used.

Better solution is enough instruments to fill the openings. :)

On Wed, Feb 10, 2021, 4:26 PM Jon Ares via Stagecraft <
stagecraft at theatrical.net> wrote:

> I've got a Landry & Bogan space - LOVE the carpeted catwalks, and the
> cages don't bother me, UNTIL we started using luminaires with point source
> emitters.... the smaller the point of light, the better the cage becomes a
> gobo.  Our older arc lamp wiggle lights cannot be used there - they project
> the cage with terrific clarity... and now we just finished a renovation
> with LED Par wall washers (architectural wall washing) and they too project
> the cage, though not as badly. The multiple emitters help to diffuse the
> cage, but not completely.  <sigh>
>
>  - Jon
>
> On Wed, Feb 10, 2021 at 12:14 PM Bill Conner via Stagecraft <
> stagecraft at theatrical.net> wrote:
>
>> The IBC and LSC which are most widely used in the US permit non-standard
>> rail spacing on lighting catwalks (and a few other places for entertainment
>> technology).  My standard is for 22" clear between top of toe board and
>> bottom of lower rail, and 22" between top of lower rail and bottom of upper
>> rail.  (I used to do 30" when 8" ERSs were more common.)  This may not be
>> enough to satisfy OSHA requirements for fall protection.
>>
>> I believe it's very important to not require people to lean out to focus
>> and service the gear.  It's much safer if both feet are flat and your body
>> balanced over the catwalk deck.
>>
>> I attach a page from a presentation I did at TEAC 2010 that shows a
>> design that does provide fall protection, and sounds like what someone had
>> in mind but didn't really know what they were doing would not work well.
>>
>> On Wed, Feb 10, 2021 at 1:58 PM Ross via Stagecraft <
>> stagecraft at theatrical.net> wrote:
>>
>>> Here is a question for those of you who have renovated or built new
>>> theatre spaces.  The local school district has just built a new high school
>>> with a state of the art theatre space.  In touring the space I see that
>>> somewhere along the lines someone put chain link fence along the catwalk
>>> railing.  Is that a safety feature that being included in new construction
>>> or just some random bright idea?  I would try to look up the building codes
>>> but I am not sure where to look, (that and trying to read them make my eyes
>>> glaze over).
>>>
>>> The reason I am asking because when adjusting light on Cat #2 you have
>>> to lay on the floor & stick one are under the fence to adjust said light,
>>> OR one person grabs the belt of a second person as they lean over the
>>> railing, (& pray they say in their pants).
>>>
>>> I should point out that at this time I do not have a formal contract
>>> with the school for anything. I just help out on productions as asked.
>>> That is the reason I do not ask any of the construction guys finishing up
>>> the project.
>>>
>>>
>>> Clay Ross
>>> Pro Dreamer
>>>
>>>
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>>
>>
>> --
>> Bill Conner Fellow of the ASTC
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>
>
> --
> Jon Ares
> www.arescreative.com
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