Ballast tray

Topics relating to lighting control gear, including magnetic & high frequency ballast and ancilliary devices such as starters, ignitors and switchgear.
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amtrakuk
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Ballast tray

Post by amtrakuk » Sat May 09, 2015 5:43 pm

Just finishied cleaned up a Thorn PP, removing the ballast I cound it was sat in a metalic tray. Is this normal practice? What's it for?
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Tom
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Re: Ballast tray

Post by Tom » Sat May 09, 2015 6:45 pm

Was it a folded piece of aluminium? These were used as heat sinks/cable protectors in the older PPs.
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amtrakuk
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Re: Ballast tray

Post by amtrakuk » Sat May 09, 2015 9:06 pm

Yes it is aluminium. Judging by the tinged paint on the spine and yellowing diffuser I'm guessing that design of ballast runs very hot.
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LinearSLI-H
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Re: Ballast tray

Post by LinearSLI-H » Sat May 09, 2015 9:31 pm

Were they also to reduce the noise of the laminates?, to stop over loud buzzing?
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amtrakuk
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Re: Ballast tray

Post by amtrakuk » Sun May 10, 2015 12:10 am

It would also make sence as the ballast is lifted slightly off the spine. I'll wire one up on the workbench tomorrow and have a listen. It would be nice if it is quiet as I have a diffuser for it too.

Initially I'd ike to try a couple of fittings, namely the Pop Pack, Fizzy, and if I can get my hands on a 4ft RING (GDR 46025) before I try out some of the suggestions of packing the mount points
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