There is only one sure way to know:VLF IT! The best way toexpose defects in a cable is to AC hipot it using VLF technology.After any cable is installed or repaired, it should be VLF hipotted to insure the integrity of the insulation, splices, joints, etc.The cable’salready down:VLF it before reenergizing.If the cable can’t hold 2 –3 times normal voltage for the IEEE prescribed 15 minutes,findout now while you’re there to make the repairs.
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