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Merry Masters

Merry Masters Q: It was a pleasure corresponding with you this year, toward a better understanding of cable rejuvenation. I also appreciate all the material you provided regarding cable testing. I wanted to take this opportunity to personally wish you and your adoptive family a Merry Christmas and a healthy and happy New Year.  …

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Galvanic Corrosion of Neutrals

Galvanic Corrosion of Neutrals Q: My copper neutrals look green. Could our practice of bonding neutrals to the rebar in our vault structures lead to neutral corrosion?   A: Yes, copper carbonate does have a bluish-green hue, but copper carbonate is your friend. The copper carbonate patina protects the native copper underneath from corrosion. It’s…

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Using TDR to Identify Neutral Corrosion and Splices

Q: The blog post titled Neutral Corrosion — How Much Is Too Much? includes a waveform from a TDR (time domain reflectometer, often called a radar) that is used to pinpoint bad sections of cable neutral. The TDR is also used to pinpoint splice locations on the cable. How does the TDR determine the neutral corrosion and splices on the cable? And how is the waveform read to tell them apart and to pinpoint their locations?

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Evolution of a Revolution

Q: I have a need to rehabilitate some aging URD circuits. How long have Novinium fluids and injection technologies been in use? I prefer to use proven technology.

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On-line Diagnostic Testing

On-line Diagnostic Testing In response to a comment of May 13, 2011 to Middle East Query – Diagnostic Testing Timing, let’s dive deeper into the data. Below I have reproduced slide number 281 from the CDFI (Cable Diagnostic Focused Initiative) Regional meeting presented by NEETRAC (The National Electric Energy Testing Research & Application Center at Georgia…

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