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Tough Meter Tails.

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I reused some old meter tails today, cira 1980s. Wow, did they bend easily. It was a delight to use them. Why oh why are modern meter tails so difficult to bend into shape. Is the copper harder? I even heard a meter installer complaining about how he hated trying to bend modern meter tails.


P.s. Is that why modern meter tails come loose so easily in main switch terminals if we just look at them? There is no "give". They are just so rigid.


Z.
  • 0
    I don't see the problem. Even if you apply the 0.97 or even 0.95 adjustment for flexible cables A4 2.4, the tails are within spec.
  • 0
    Yes the standards are the same for 7 strand and 19 strand on the Doncaster website, Both overall BS 6004:2012 Table 3, Conductor :     Plain Annealed Copper Class 1 or 2 to BS EN 60228 

    Insulation:    PVC Type TI1 to BS EN 50363-3 

    Sheathing:    PVC Type 6 to BS7655-4.2 


    No difference between the two versions.


    All I can find in the Wylex consumer unit instructions is not to use Tri-Rated (which this isn't).

    I don't have copies of the standards so I cant wee whether they specify the number of strands but on the basis that both comply with the specs then I cant see a valid reason for a MO refusing to connect.  Of course manufacturer testing may not have caught up.  I will ask Wylex and see what they say.

  • 0
    Wylex use multi strand internal tails such as these.


    But they would not be suitable for use as meter tails and the ends are preformed before termination.


    Andy Betteridge
  • 0
    Is it that some people resist change and are intent on doing what they have always done on the basis that it is a tried and trusted method?


    Andy Betteridge.
  • 0
    The Wylex internal wiring has many more than 19 strands, it looks a bit like tri-rated but does have the ends 'finished' (latest I have seen doesn't have crimps but seems to be welded somehow).  I have lodged a query with Wylex on the 19 stranded tails so will let you know what they say.
  • 0
    Some of the internal tails made by some manufacturers are actually plaited fine stand cables covered in loose sleeving.


    Andy B.

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