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  • Users: Elie2
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  1. Elie2

    Article 250.4: useless in TN-S?

    Hi, I have a 100kVA load 300m far from the substation and i had to run 3 cores for the 3 phases and 1/2 core for the neutral and 1/2 core for earth. I did install an earth pit near the load but i put the 1/2core cable as well so that the earth will not be the only return path for the fault...
  2. Elie2

    One point earth and fuse size with length

    Hi, I have 2 separate questions: 1. A project specifcations say that: a. The transformer neutral shall be earthed to a bar, one tip of which linked to an earth pit and the other tip linked to the earthing ring around the premisses. b. The neutral in the MDB shall be earthed (they say to help...

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