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HO7RN-F Cable as a Sub-Main

Kevin Broadley

I am looking to install a distribution board on a new submains cable in an underground car park that has existing cable tray installed. This will be fed by the customer's main panel board located at the origin of the installation

Can I install HO7RN-F cable as the submains or does it need to be SWA?

Thanks in advance

Kevin

Parents
  • +1

    I agree. H07RN-F is likely to be rather expensive compared to similar sized SWA, terminations may need some special consideration (not all terminals are intended to accept fine stranded without extra preparation - e.g. ferrules) and if you're close to the limit you might have to go up a c.s.a. size (appendix 4, 2.4), but there's no fundamental objection to using flex.

           - Andy.

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  • +1

    I agree. H07RN-F is likely to be rather expensive compared to similar sized SWA, terminations may need some special consideration (not all terminals are intended to accept fine stranded without extra preparation - e.g. ferrules) and if you're close to the limit you might have to go up a c.s.a. size (appendix 4, 2.4), but there's no fundamental objection to using flex.

           - Andy.

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