TDR recommendations - Electrician Talk - Professional Electrical Contractors Forum
CLICK HERE AND JOIN OUR COMMUNITY TODAY, IT'S FREE!
Go Back   Electrician Talk - Professional Electrical Contractors Forum > Electrical Forum > General Electrical Discussion


Reply
 
Thread Tools Display Modes
Old 08-09-2012, 10:37 PM   #1
Sideways Sparky
 
farlsincharge's Avatar
 
Join Date: Dec 2010
Location: SK Canada
Posts: 1,511
Rewards Points: 1,168
Default TDR recommendations

Looking to buy a tdr. I would like it to display as a graph and not as a distance reading.

What are you using and what do you like?
farlsincharge is offline   Reply With Quote
Join Contractor Talk

Join the #1 Electrician Forum Today - It's Totally Free!

ElectricianTalk.com - Are you a Professional Electrical Contractor? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's the leading place for electricians to meet online. No homeowners asking DIY questions. Just fellow tradesmen who enjoy talking about their business, their trade, and anything else that comes up. No matter what your specialty is you'll find that ElectricianTalk.com is a great community to join. Best of all it's totally free!

Join ElectricianTalk.com - Click Here JOIN FOR FREE


Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ElectricianTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Sponsored Links
Advertisement
 
Old 08-09-2012, 11:07 PM   #2
RIP 1959-2015
 
HARRY304E's Avatar
 
Join Date: Sep 2010
Location: Reporting from the east coast of Moonbatchusetts..
Posts: 39,624
Rewards Points: 1,344
Default

Quote:
Originally Posted by farlsincharge View Post
Looking to buy a tdr. I would like it to display as a graph and not as a distance reading.

What are you using and what do you like?
What is a TDR?
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
HARRY304E is offline   Reply With Quote
Old 08-09-2012, 11:10 PM   #3
Senior Member
 
Join Date: Jul 2010
Location: South Carolina
Posts: 2,052
Rewards Points: 1,038
Default

Time Domain Reflectometer.
jefft110 is offline   Reply With Quote
The Following 2 Users Say Thank You to jefft110 For This Useful Post:
HARRY304E (08-09-2012), janagyjr (08-10-2012)
Sponsored Links
Advertisement
 
Old 08-10-2012, 07:59 AM   #4
Can't Remember
 
Join Date: Jan 2009
Location: New Hampshire
Posts: 9,209
Rewards Points: 178
Default

What are you going to use it on? Twisted pair, coax, power? Riser Bond, Bicotest, and Megger come to mind. Sometimes that feature is integrated within some of the phone/data testers I have seen. I have a T631 from Bicotest and a Riser Bond 1550 not something I use every day, more as an experiment in finding faults in UF.
nrp3 is online now   Reply With Quote
Old 08-10-2012, 09:14 PM   #5
Sideways Sparky
 
farlsincharge's Avatar
 
Join Date: Dec 2010
Location: SK Canada
Posts: 1,511
Rewards Points: 1,168
Default

I want it for #14 to 500mcm cable.
I tried a telcom tester today (Dynatel 965) on a run of 1/0 copper. I set it at 19 gauge air core cable and got no real conclusive results.
I went after with a frame on my locater and dug 7 splices up.
The one I was really looking for was burnt off and reading 4k to ground.
I wasn't really impressed with the tdr results.
I have used this machine for its intended purpose and it works great.
farlsincharge is offline   Reply With Quote
Old 08-10-2012, 09:37 PM   #6
Can't Remember
 
Join Date: Jan 2009
Location: New Hampshire
Posts: 9,209
Rewards Points: 178
Default

I wanted to use these for that purpose too, but without knowing the VOP to properly set it, you can't get the proper accuracy. I don't know how well they might work with seperate direct buried cables where the spacing between them changes the impedance along the route, unlike twisted pair or coax. I am sure you would see major changes in impedance like direct shorts or opens. I have good luck with the sheath fault type locators so this has taken something of a back seat and need of more experimentation. Interesting stuff though.
nrp3 is online now   Reply With Quote
Old 08-10-2012, 11:22 PM   #7
God-fearing Volt-head
 
janagyjr's Avatar
 
Join Date: Feb 2011
Location: McMinnville, TN, USA
Posts: 1,221
Rewards Points: 536
Default

Quote:
Originally Posted by jefft110 View Post
Time Domain Reflectometer.
I thought he was talking about a Time Delay Relay. My bad.
__________________
Owner, Trinity Electrical and Handyman Services
All original content licensed via the OWL (
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
) from date of post.
janagyjr is offline   Reply With Quote
Old 08-12-2012, 02:34 PM   #8
Yeah your gonna get wet !
 
Sprink's Avatar
 
Join Date: Apr 2012
Location: Midwest
Posts: 90
Rewards Points: 148
Default

Quote:
Originally Posted by farlsincharge View Post
Looking to buy a tdr. I would like it to display as a graph and not as a distance reading.

What are you using and what do you like?


I am using the triplett 3271 TDR and it works very well. The triplett 3271 is a distance reading TDR and cost about $180.00. It takes a little bit of time and experimenting to learn how to use it.
If you own a TDR I would suggest buying a measure wheel. You use the measuring wheel to set and confirm the VOP. The VOP listed for a type of wire will be close but not always accurate or you will not find it listed and have to figure it out using the measuring wheel.
Here is a good link that explains how to do it.
http://www.tscm.com/riprcop.html

This is what I would like to buy if I needed a TDR with a waveform display. http://livewireinnovation.com/products-and-services/sparkchaser/
This is a SSTDR and is the only TDR that I know of that can test on live and de-energized wires. It is also the only one that has a coupler so there is no disconnecting of wires. Not sure if coupler comes with it or extra.


They also make a nice distance reading SSTDR called the Faultchaser. http://livewireinnovation.com/products-and-services/faultchaser/
The TDR is a great tool and will save you time locating faults in your wire. I use it for Irrigation, Outdoor Lighting and for Aeration motors on septic systems.


What is the make of your A Frame?
Sprink is offline   Reply With Quote
Old 08-12-2012, 02:44 PM   #9
Sideways Sparky
 
farlsincharge's Avatar
 
Join Date: Dec 2010
Location: SK Canada
Posts: 1,511
Rewards Points: 1,168
Default

It is a dynatel. The locater is a 2273 I think. It found a 60k ohm to ground fault no problem.

Thank you for the info and links.
farlsincharge is offline   Reply With Quote
Old 08-12-2012, 02:47 PM   #10
Can't Remember
 
Join Date: Jan 2009
Location: New Hampshire
Posts: 9,209
Rewards Points: 178
Default

Some of the higher end units out there have mains blocking filters available as an accessory.
nrp3 is online now   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
any recommendations? caseyelectric General Electrical Discussion 0 05-17-2012 10:07 PM
SEO Company Recommendations?? ratrod56 Business, Marketing, and Sales 17 04-30-2012 09:29 PM
Light Meter Recommendations? electrictim510 Lighting Design 6 03-10-2012 11:32 PM
Any service van radio recommendations? Sky Seattle General Electrical Discussion 40 01-17-2012 12:18 AM
Entry Buzzer Recommendations knowshorts Structured Wiring 7 12-07-2011 09:09 AM


All times are GMT -4. The time now is 10:01 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Our Pro Sites Network
ContractorTalk.com | DrywallTalk.com | HVACSite.com | PaintTalk.com | PlumbingZone.com | RoofingTalk.com