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  1. kagiso

    Spacing Between Manholes

    SUBSTATION EARTHING-132kV I did earthing measurement, fall of potential measurements on 6 substation in my area and I got values less than 1 eg R1=0.89,R2=0.90,R3=0.82 & R4=2.27-one Substation,so my problem is how do I conclude with this,does it mean that earth resistsnce is Ok.I did most of...
  2. kagiso

    Acceptable value for earth resistan

    Acceptable value for earth resistance When measuring the resistance of the large earth electrode (earth mat) what is the acceptable values depending on soil resistivity.I also want to know the relevant SABS code that can be kept as reference for future earthing practise in my company.Please...
  3. kagiso

    Tiger Ring Main Unit

    I work for Tshwane Metropolitan Municipality (Pretoria-SA)and have been asked to investigate the cost effectiveness of the Tiger Extensible Ring Main Units. I don't have enough experience on this but intend to bring up profitable input. The arrangement that we are currently using is the...

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