Fluorscent Ballast load polarity

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xformer

Senior Member
Location
Dallas, Tx
Occupation
Master Electrician
Hello,
Can anyone tell me what the polarity of the ballast wires to the lamps either blue, yellow or red with respect to ground?

Thanks.
 

gar

Senior Member
Location
Ann Arbor, Michigan
Occupation
EE
170609-0815 EDT

JFletcher:

Your reference to
http://www.edisontechcenter.org/Fluorescent.html
provides a very good history and discussion.

Seldom does one find such a well prepared presentation on the Internet.

I remember that at Christmas time in 1940 that my dad and I bought a 40 W fluorescent light (two 20 W bulbs) for my mother from Montgomery Ward. This was just 2 years after commercial units were available. The lighting provided was a great improvement over incandescent.

.
 
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