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#130073 - 01/31/06 12:51 PM Time Domain Reflectometers  
maintenanceguy  Offline
Member
Joined: Dec 2001
Posts: 300
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?


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#130074 - 01/31/06 06:34 PM Re: Time Domain Reflectometers  
NJwirenut  Offline
Member
Joined: Sep 2001
Posts: 806
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 - 02/02/06 01:28 AM Re: Time Domain Reflectometers  
JoeTestingEngr  Offline
Member
Joined: Nov 2005
Posts: 782
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.
Joe



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