ARCing switch


Old 01-02-07, 05:58 PM
Thread Starter
Join Date: Jun 2004
Location: Florida
Posts: 197
ARCing switch

what would cause a switch to give a tiny spark when its switched on?
I can only see it when its dark and it has bothered me since the first time I saw it..
the switch controls a outside light that uses two 150w bulbs and it has a outlet in the same box as the switch.
everything works fine except for the tiny spark.
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Old 01-02-07, 06:02 PM
Join Date: Sep 2003
Location: Central New York State
Posts: 13,973
All connections that are made or broken cause a small spark. You don't notice it most of the time, especially when the light is on. A small spark is nothing to worry about.
Old 01-02-07, 06:04 PM
Sthrnamp's Avatar
Join Date: Jul 2006
Location: Mid TN
Posts: 188
The electrical draw of the 300 watts is the cause of the electric spark being detectable...Anytime you have a disconnect of power while power is being used (I know it seems like an oxymoron)you will cause a "spark" or arcing

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