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rubber insulated cloth covered tinned copper submain cable in galv. conduit.

Legh Richardson
Had a look at an installation which has a submain running approximately 25m to supply a kitchen.

We thought umm this looks interesting, cut a slice off at the output of the switched fuse and re-terminated. The cloth, and rubber appears to be in reasonable condition for what appears to be nearly 70 years old. An insulation test at 500V gave a reasonable result (>500M) and a leakage test gave the same, 0.41mA.

The cable is out of date but appears to be still serviceable. It is not heavily used and the ambient temperature is generally quite low. I think I might advise that the cable is replaced by a newer edition or at least regularly checked every year. Has anybody got any other ideas?


Legh
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    I was asked to investigate kitchen sockets that had had been causing the fuses to blow. Unscrewed a socket, pulled it out as you do. The VRI insulation crumbled leaving bare wires - gingerly screwed the socket back in and .................Ran away!. (Some mistakenly state VIR). 


    Jaymack
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  • 0
    I was asked to investigate kitchen sockets that had had been causing the fuses to blow. Unscrewed a socket, pulled it out as you do. The VRI insulation crumbled leaving bare wires - gingerly screwed the socket back in and .................Ran away!. (Some mistakenly state VIR). 


    Jaymack
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