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#130073 - 01/31/06 08:51 AM Time Domain Reflectometers
maintenanceguy Offline

Registered: 12/02/01
Posts: 303
Loc: Southern NJ, USA
Can a TDR be used to find faults in electrical installations. I know they'll work on long cable runs but if you tried to use one to find an open wire in a building, would you get a bounce off of every wire nut, lug, and terminal screw between you and the open?

#130074 - 01/31/06 02:34 PM Re: Time Domain Reflectometers
NJwirenut Offline

Registered: 09/15/01
Posts: 816
Loc: Bergen County, NJ
Yes, you would see every splice and tap, but the reflections from those would be a lot smaller than the reflection from the open conductor.

#130075 - 02/01/06 09:28 PM Re: Time Domain Reflectometers
JoeTestingEngr Offline

Registered: 11/04/05
Posts: 786
Loc: Chicago, Il.
I don't think that it would be the technology of choice to hunt down an open in a building though. I would think that some sort of signal injection and sniffing scheme would serve better than a TDR in that application.


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