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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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    StuartBa:

    Zoom

    many thanks for your information it is much appreciated and helpful.

    I asked the question because the cores appear larger in diameter than the 2.5mm2  cable in the next mcb. I normally carry cable information with me and examples of imperial and metric cables. 

    I was asked to have a quick look at the consumer unit by a friend and that is why I asked what I thought was a reasonable query. 


    Perhaps you have two example of 2.5mm2 cables. A real correctly sized B.A.S.E.C. one and an inferior fake sub-standard one next to it. Try to read the cable's sheath markings if possible. There were fake imported undersized cables available back in those days.


    Z.


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  • 0
    StuartBa:

    Zoom

    many thanks for your information it is much appreciated and helpful.

    I asked the question because the cores appear larger in diameter than the 2.5mm2  cable in the next mcb. I normally carry cable information with me and examples of imperial and metric cables. 

    I was asked to have a quick look at the consumer unit by a friend and that is why I asked what I thought was a reasonable query. 


    Perhaps you have two example of 2.5mm2 cables. A real correctly sized B.A.S.E.C. one and an inferior fake sub-standard one next to it. Try to read the cable's sheath markings if possible. There were fake imported undersized cables available back in those days.


    Z.


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