I would like to know what would be the possible safety issues in using a common CAT IV flex-CT (Rogowski) around a 34.5kV insulated cable (not exposed). Theoretically I understand that the amount of current through a 34.5kV is not so high, but during a fault this may change. Is it more of an accuracy issue with the reads, BIL , or is it really a hazard? I understand the cable might be punctured too. I would like to thank you in advance for any help.
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