RE: Shop no no's

["gary baker" <lsr350@hotmail.com>]

>Sparky;
>
>So far I've been very pleased with my new workshop. The only thing I'd do
>over is to make sure my flourescent light fixtures made less humming noise.
>I should have checked this out more thoroughly. I'm getting used to it,
>though.
the hum is caused by the 50hertz  or 60 hertz  or what ever you guys run 
over there this makes the ballast vibrate  which makes the whole fitting 
vibrate  make sure the fitting is mounted solid and that the ballast is not 
loose even slightly this will cure most if not all humming caused by 
vibration
Gary

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