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IET SPD course

MikeB69
Has anyone done the IET SPD course ? I have completed it now but confused by one answer

When doing the final assessment test I am baffled by question 10 relating to Critical Risk Level, I don't understand how the answer is worked out from the figures they have given and why the answer is (B).

Has anyone done it or can they explain please?


Many thanks
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    lyledunn:

    Are you sure this doesn’t relate to the value of Lp being unlikely to exceed 0.6 in outer London? Perhaps something in the course notes? So in the Borders and Cornwall Lp could be greater than 1 in Manchester Lp is likely to be greater than o.425 and in London Lp will be less than 0.6


    Interesting theory - that would mean for instance, that no LV customer in Outer London is more than 500m from their substation and all cables (HV and LV)  underground? I don't know the SE well enough to guess whether that's plausible.

       - Andy.


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  • 0
    lyledunn:

    Are you sure this doesn’t relate to the value of Lp being unlikely to exceed 0.6 in outer London? Perhaps something in the course notes? So in the Borders and Cornwall Lp could be greater than 1 in Manchester Lp is likely to be greater than o.425 and in London Lp will be less than 0.6


    Interesting theory - that would mean for instance, that no LV customer in Outer London is more than 500m from their substation and all cables (HV and LV)  underground? I don't know the SE well enough to guess whether that's plausible.

       - Andy.


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