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required chain grade for overhead suspension
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<blockquote data-quote="Tim Duffin" data-source="post: 32246" data-attributes="member: 400"><p>Re: required chain grade for overhead suspension</p><p></p><p>I think its interesting to mention that you should "never" use round sling as the primary attachment point. That is all that is allowed in the sac convention center, unless you are using the rated points in the ceiling. Every AV company I have seen has wrapped spansets around the beams to hold their projectors/speakers/screens/cable etc. I think this is a grey area and not a hard and fast rule. Additionally, the AV companies were instructed to pad the spansets with cardboard so as to avoid knocking off the fireproofing. Cardboard is also flammable, strangely enough.</p><p></p><p>Thanks everyone for your input. I'm just going to buy some 1t chain motors for future shows.</p></blockquote><p></p>
[QUOTE="Tim Duffin, post: 32246, member: 400"] Re: required chain grade for overhead suspension I think its interesting to mention that you should "never" use round sling as the primary attachment point. That is all that is allowed in the sac convention center, unless you are using the rated points in the ceiling. Every AV company I have seen has wrapped spansets around the beams to hold their projectors/speakers/screens/cable etc. I think this is a grey area and not a hard and fast rule. Additionally, the AV companies were instructed to pad the spansets with cardboard so as to avoid knocking off the fireproofing. Cardboard is also flammable, strangely enough. Thanks everyone for your input. I'm just going to buy some 1t chain motors for future shows. [/QUOTE]
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