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Operational Considerations

A Cable Too Long

January 22, 2013

Q: I am currently reviewing a URD circuit with a cable segment that is 6,200′ per our one-line and GIS. It is our regular #2 db [direct buried] cable. I am considering the installation of pull-boxes to break up the many long segments prior to attempting injection. What is the practical limit to TDR [time-domain reflectometer] testing? What is the practical injection limit? I assume in the best case that there at least a construction splice every 2000 feet, but there may be more that have to be replaced.

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Fabric Tape Conductor Shield

May 4, 2012

Q: I am wondering if you can provide some thoughts or comments on a cloth fabric semi-con we have here on some older #2 Cu cables, 15kV. Does the Cablecure 732/733 fluid harm this fabric? Does the fluid react with any semi-conducting materials like carbon? Does Novinium think the injection process disturbs or harms the fabric?

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