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4mm2 twin and earth cable

Former Community Member
Former Community Member
regarding 4mm2 cable was it ever available in the old colours with solid conductors rather than the 7 strands version? Ive just done a pre - inspection of a property before doing an EICR and found 2 radial circuits fed from 32A MCBS. The cables appear to be  larger than 2,5mm2 . I'm going back to inspect this property with a view to reducing the MCB's to 20A if if they are 2.5mm2. I'm also taking  a Vernier  gauge to measure the cable diameters and compare to reference tables.

The installation is approximately 30 years old but is in very good condition.
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    Th deliferate mistale is presumably the growth in number length, beyond the true precision of the test, an error typiclal of the pocket calculator user.

    Giving the totally misleading illusion of accuracy. Those who started with tables and slide rules are well aware of that, but it seems to be no longer taught.

    M.
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  • 0
    Th deliferate mistale is presumably the growth in number length, beyond the true precision of the test, an error typiclal of the pocket calculator user.

    Giving the totally misleading illusion of accuracy. Those who started with tables and slide rules are well aware of that, but it seems to be no longer taught.

    M.
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