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Ok, we're installing a 9ft circular truss from Global truss in the center of the dance floor. I'm putting 8 Elation Powerspot 250's and 4 megaflash strobes. Will I need to install any type of dimmers or can I plug everything into wall sockets? I will have 4, 4-way sockets each on a seperate 30amp breaker. Thanks guys!!!!!!!!
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I ask because I've been into a lot of places where their rigging is a little on the scary side.

I am by no means a rigging expert, but I do know that if something is suspended by aircraft cable/chain and is hanging from metal there needs to be some sort of buffer in between the contact of the two metals (the metal in the cable and the metal of the ceiling) - preferably burlap. This prevents corrosion/decay and keeps kinks out of the suspension. I also know professional rigging materials are not available at home depot (the chains/cableing they sell are not up to snuff rating/stress/construction wise).

As important as this is, I rarely see the burlap in practice at clubs. Your best and safest route would be to consult with a professional rigger when putting up your trussing. Your talking some serious weight on it (plus the weight of the truss itself). It'll be piece of mind, plus an inspection may be required by law in order for it to be covered under the insurance the club has.

I rarely see the little flags professionals mark inspected rigging with, but when I see them, I feel a lot better working around it.
If your talkint bout a permamnent install you definately need to check with a construction/building engineering type company. I woudl even contact your local sound/lighting company to see if they do installs. Chain hoists are always an option but for somehting permanent ur prob gonna wanna rig directly do your building. You dont wanna take this lightly...work with the pros because if nto done right not only is ur equpment at rsik but ur guests too..huge lawsuit waiting to happen. Sounds like an awesome install!!
My question would be how high is the truss to be suspended off of the floor? If you have a high ceiling a motorized system to raise and lower the trussing would be a option to consider. It will become apparent the first time you change the configuration or relamp the fixtures - No rickety ladder climbing.

Also, for configuration and expandability, you may want to consider installing the trussing onto the floor with four posts. It stops the electric connection between the truss and the metal rafters (the need for the burlap). Most roof loads are figured for the weight of the roof to support (dead load) and temporary conditions like rain, snow, etc (live load). By installing trussing to the floor, you can hang/reset the lighting configuration as the needs change and to keep it fresh for the audience. See
"22X22 CIRCLE WITH OUTER LEGS @ Global Truss for an example. The legs can be anchored to the floor for seismic loading if required.

As to the electrical loading, the 30A circuits seem fine, just make sure the main panel can support the additional loading. The biggest problem I find at clubs, is the electrical service becomes under sized rapidly.
Hey no problem! Also I dont kno how your venue is laid out but you should also utilize walls and unique attributes of the room. You can hang lights from I beam or truss around the room and also neon tubes to line the walls are a cool effect...use your venue to ur own creative ability...skies the limit!

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