Subj : Light Switch Replacement
To   : Barry Martin
From : Ed Vance
Date : Sun Dec 15 2024 17:54:10


Barry, Thanks for the reminder about the one hand rule.

I ain't done any Electrical work lately.

Re: the one hand rule - I was in High School when the Teacher in the Radio
Electronics classroom show how to make sure it was safe to work inside the 19"
Rack Cabinet of the Kilowatt AM Transmitter when it was disconnected from the
AC Power Mains.
On the back of the cabinet was mounted a long metal rod that had a wooden
handle. 
Where the rod met the handle a wire was attached that had a clip on the end.

The Teacher showed us to open the jaws of the clip and fasten it to the metal
cabinet just after opening the door on the back.of the cabinet.

Next he touched the Electrolytic Capacitor(S) to make sure they didn't have a
charge stored in them. I remember hearing a CRACK! when the rod touched the
first capacitor.
He touched each one several times and then said it was safe to reach in to work
on it with one hand in your pocket.

Thanks for the reminder.
Ed
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