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Posted by Don Klipstein on January 15, 2007, 6:09 pm
buffalobill wrote:
>some flourescent fixtures like to be grounded, others want new bulbs,
>starters if applicable , or ballasts [which come in different usage
>temperatures]. clean bulb tips, clean socket electrical contacts. new
>bulbs will come on quicker and be brighter than old.
>
>Walter wrote:
>> I have 8' cold start flourescent lights in a barn that I build. When it is
>> damp outside they have a orange glow in the ends but won't come on. When
>> it is dry they work perfect. These lights have been installed for about 2
>> years.
I would like to add that sometimes cleaning the bulbs helps, if the
fixtures are properly grounded and the bulbs still don't come on when it
is humid.
The explanation: The bulbs could have a thin film of hygroscopic dust
or dirt, and this film gets slightly conductive when it is wet. This
can screw up the electric field distribution inside bulbs that are trying
to start.
- Don Klipstein (don@misty.com)
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