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Joined: Sep 2002
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Originally Posted by Texas_Ranger
I wonder what the intended use for that 3-prong plug was! It can't really have been earthing if there was an Edison adaptor. Maybe it was designed for two hots, e.g. from a 3-way Edison socket.

Edison to socket adaptors were banned in Germany rather early, actually in 1959 (along with plug-in multi adaptors for Schuko plugs as they were considered dangerous for the mechanical integrity of the socket). Don't know when they were banned in Austria, but probably not much later. Last time I've seen one in use was back in the 90s and they were rare by then.


There is a screw terminal on the side to attach a grounding conductor.

Joined: Feb 2002
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Gee, are those plugs tamper resistant? smile

Joined: Sep 2002
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Originally Posted by harold endean
Gee, are those plugs tamper resistant? smile



That was before the days of Stalinist Political Correctness. laugh

Joined: Dec 2001
Posts: 2,498
T
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Originally Posted by NORCAL
Originally Posted by Texas_Ranger
I wonder what the intended use for that 3-prong plug was! It can't really have been earthing if there was an Edison adaptor. Maybe it was designed for two hots, e.g. from a 3-way Edison socket.

Edison to socket adaptors were banned in Germany rather early, actually in 1959 (along with plug-in multi adaptors for Schuko plugs as they were considered dangerous for the mechanical integrity of the socket). Don't know when they were banned in Austria, but probably not much later. Last time I've seen one in use was back in the 90s and they were rare by then.


There is a screw terminal on the side to attach a grounding conductor.

On the light socket?
How would that connect to the bulb/adaptor? I'd assume that's only for the metal shell of the socket itself.

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G
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See #24 in the diagram.
That would connect a ground pigtail coming from the socket base (or a cold water pipe) to the plug cap ground.


Greg Fretwell
Joined: Dec 2001
Posts: 2,498
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Originally Posted by gfretwell
See #24 in the diagram.
That would connect a ground pigtail coming from the socket base (or a cold water pipe) to the plug cap ground.

Aah, yes now I see!

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