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Lighting Fixtures, Switch Panels and Meters Antique lighting fixtures, bulbs, switches, meters and controls.

Lighting Fixtures, Switch Panels and Meters

Old Disconnect


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  #1  
Old 01-20-2019, 10:21:04 PM
Frank DeWitt Frank DeWitt is offline
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Default Old Disconnect

Just picked this up. I don't know the history. I assume they were used as a whole house disconnect. It has provision for a lead / wire seal.


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  #2  
Old 01-21-2019, 12:33:08 AM
NDmeterman NDmeterman is offline
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Default Re: Old Disconnect

Probably back when flat-rate DC service was a thing.

As long as you didn't blow the fuse you pay the same amount every month. The cutout looks to be arranged so there's no heavy arc if opened under load due to the two break points.
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Old 01-21-2019, 10:16:39 AM
Frank DeWitt Frank DeWitt is offline
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Default Re: Old Disconnect

Thanks for the info. The two break points also make changing fuses easy.

I plan to put it to use as the main disconnect on my generator display.
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Old 01-31-2019, 12:30:13 PM
Tracy T Tracy T is offline
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Default Re: Old Disconnect

Quote:
Originally Posted by NDmeterman View Post
The cutout looks to be arranged so there's no heavy arc if opened under load due to the two break points.
look at the first picture, no ark cast right into the cover.
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Old 02-01-2019, 12:11:12 AM
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ulgydog56 ulgydog56 is offline
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Default Re: Old Disconnect

just don't put a penny in the in place of a 30 amp fuse...lol..
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Old 02-06-2019, 06:52:03 AM
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GeneratorGus GeneratorGus is offline
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Default Re: Old Disconnect

Frank,
It's more than likely a disconnect for an arc lighting system. Not unusual that arc lights had 500 or so volts DC operating current that would definitely throw a good arc.
Here are a coupe pics of a couple I have.

GUS
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Old 02-06-2019, 07:25:10 AM
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GeneratorGus GeneratorGus is offline
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Default Re: Old Disconnect

As long as I'm on the subject.
I believe this rather crude, home made looking deal was at the least used for some sort of higher voltage DC. I wish all of it was there, what I suspect was the contact has nothing but a pile of solder where it should have been.

I have a few arc fixtures, a couple of them were used hard and put up wet.
Another, Western Electric (550 VDC), was missing the globe and it's holder. A goldfish bowl and coffee can now replace the missing parts. I've never tried to light it.
The nicest one hangs in my den, German made, it uses a clockwork mechanism to feed the electrode.
Most of the arc light literature I can find shows that they used the current draw from the arc to magnetically regulate the arc gap.
And, not to be out done, someone came up with the idea to burn your skin to a perfect tan with this device. In the last picture that is the safety goggles hanging there, they came with one of them.

GUS
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  #8  
Old 02-06-2019, 12:22:25 PM
Frank DeWitt Frank DeWitt is offline
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Default Re: Old Disconnect

Quote:
Originally Posted by GeneratorGus View Post
Frank,
Here are a coupe pics of a couple I have.

GUS
Very nice, but a question. It looks like when the round one is turned off it shorts the input, (and the output) I must have that wrong.

Frank

---------- Post added at 11:22:25 AM ---------- Previous post was at 11:19:15 AM ----------

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As long as I'm on the subject.

GUS
Wow. Big grin. Thanks for sharing those.

Frank
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Old 02-06-2019, 01:02:49 PM
Vanman Vanman is offline
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Default Re: Old Disconnect

That shorting of the input is to keep the externally supplied constant current (series) supply continuous. That is a VERY neat switch to have!
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Old 02-08-2019, 08:27:18 AM
NDmeterman NDmeterman is offline
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Default Re: Old Disconnect

Definitely neat to see those disconnects. Never really thought anyone would dare run a series lighting loop INTO a building, given the high open-circuit voltage (there is a reason they were strung on the same type of insulators as the primary distribution circuits they often shared a crossarm with).

I once had a couple series cutouts that were mounted in the base of a few streetlamp posts, but I have since sold them on to new owners further east. The body and knob were both pressed from dry-process porcelain and at least the knob was glazed. One turned the knob 90 degrees to bypass the incoming circuit.

Gus, the electric meter you have in the background of a couple pictures is a General Electric Type I-10. Seems you're missing the terminal cover for it, which unfortunately also carried the nameplate.
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