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Meter Tails in Ducting

fiftyhertz
Hi All,


Working on a street lighting project, which requires a DNO supply. Now, up to this point it has been fed from a SWA as a temporary supply. We are in the process of changing it to its rightful metered supply, however the original installer did not allow space for the cut out/meter. My thinking is to install an adjacent pillar, to house the fused cut out, meter, and duct between the two. 


My question is can meter tails be ducted, they are double insulated so i cannot see why not. Alternatively,, fit a 80A fused switch after the meter and gland from that and run in from the connecting ducts to terminate into the DB. Has anyone used SWA after the meter?


Many thanks
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    Would their be a discrimination issue having a 80a cut out and 80 switch fuse. Maybe better to have a switch disconnect on consumer side 



    Not really any issue with discrimination - the effect is the same whichever fuse blows first - the same loads are disconnected either way. If anything there's an advantage in having a consumer side fuse which'll generally be easier to replace than a DNO one - even if there's only a 50:50 chance of benefiting from it.


    Besides there's the issue of the DNO normally only allowing their fuse to provide protection to short lengths of visible insulated & sheathed singles of specified c.s.a.


      - Andy.
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  • 0

    Would their be a discrimination issue having a 80a cut out and 80 switch fuse. Maybe better to have a switch disconnect on consumer side 



    Not really any issue with discrimination - the effect is the same whichever fuse blows first - the same loads are disconnected either way. If anything there's an advantage in having a consumer side fuse which'll generally be easier to replace than a DNO one - even if there's only a 50:50 chance of benefiting from it.


    Besides there's the issue of the DNO normally only allowing their fuse to provide protection to short lengths of visible insulated & sheathed singles of specified c.s.a.


      - Andy.
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