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Time Domain Reflectometers #130073
01/31/06 11:51 AM
01/31/06 11:51 AM
M
maintenanceguy  Offline OP
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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Re: Time Domain Reflectometers #130074
01/31/06 05:34 PM
01/31/06 05:34 PM
N
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.

Re: Time Domain Reflectometers #130075
02/02/06 12:28 AM
02/02/06 12:28 AM
J
JoeTestingEngr  Offline
Member
Joined: Nov 2005
Posts: 799
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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