I updated a DB board and installed new lights in an old building that was wired with VIR (Vulcanized Indian Rubber).
Insulation at the ends was crumbly and I landed up having to ferrule and extend with new copper conductors in places.
I meggered the installation afterwards. Interestingly the readings exceeded 1MOhm.
My question: I know the VIR will deteriorate further and I want to suggest to my client that we remove all VIR and replace with modern cable. But if the installation passes COC tests is it necessary?
Thoughts?
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