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Old 25-04-15, 16:15
Chris Suslowicz Chris Suslowicz is offline
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Join Date: May 2007
Location: England
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Quote:
Originally Posted by RichCam View Post
Guys,

Jim pulled the terminals apart since we needed to know just how and what they looked like from both the inside and outside.
As per the pictures, Brass stud, brass wing nuts, washer, bakelite round spacer and bakelite spacer.
So, they were insulated from each other, you could pass + current through one and - current through the other. There is a 3rd terminal, on the inside, that ties directly into a steel stud. That would be a logical ground. I agree with Robert, this would be excellent for a field telephone connection as well as an external power port.
It's much too heavy for a telephone connection point! I'm fairly sure it is intended to supply 12V power to the penthouse when that's in use. The wingnut terminals are typically those used for slotted-lug connections on the various "Batten, Terminal" strips. Are they marked with + & -?

Chris.
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