ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
by gfretwell. 03/24/18 02:10 AM
Recall Notice Kidde Smoke Alarms
by dougwells. 03/22/18 01:40 PM
Recall notice: Southwire wi-fi wall switches
by sparkyinak. 03/15/18 06:03 PM
Goodman Manufacturing Recalls Modular Blowers
by Admin. 03/13/18 10:40 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 6 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Finding break in buried cable? #61194
01/18/06 08:38 PM
01/18/06 08:38 PM
highground  Offline OP
Joined: Nov 2004
Posts: 53
Chama, NM
What are the best methods and equipment for finding a break in an underground cable. I have one that is over 3000' long that is used for controlling a pumping station.
Thanks in advance.

Work Gear for Electricians and the Trades
Re: Finding break in buried cable? #61195
01/18/06 08:48 PM
01/18/06 08:48 PM
JoeTestingEngr  Offline
Joined: Nov 2005
Posts: 791
Chicago, Il.
I just bumped Rodalco's thread,"Cable Fault Location", up for you. Both faults and opens cause energy to be reflected back from the points of impedance change.

[This message has been edited by JoeTestingEngr (edited 01-18-2006).]

[This message has been edited by JoeTestingEngr (edited 01-18-2006).]

Re: Finding break in buried cable? #61196
01/18/06 11:23 PM
01/18/06 11:23 PM
RODALCO  Offline
Joined: Dec 2005
Posts: 856
Titirangi, Akld, New Zealand
Need to know what type of cable it is,
screened or single core, 3 core armoured ?and what type of fault?

safety. [Linked Image] is the cable isolated from the supply?
Are the phases continuous?
Insulation Phase to Ground?
Insulation Phase to Phase?
Insulation screen to earth?
what voltage level is the cable used at
e.g. 400 volts, 11 kV.

The product of rotation, excitation and flux produces electricty.


2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman


Member Spotlight
Attic Rat
Attic Rat
Bergen Co.,N.J. USA
Posts: 524
Joined: December 2003
Show All Member Profiles 
Top Posters(30 Days)
Admin 5
Trumpy 5
Popular Topics(Views)
244,891 Are you busy
182,003 Re: Forum
172,033 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.017s Queries: 14 (0.003s) Memory: 0.9506 MB (Peak: 1.0754 MB) Zlib enabled. Server Time: 2018-03-24 17:53:59 UTC