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Generator earthing

Baldyhugh
Hi


I have a tractor driven Backup generator to install on a farm shortly and have a query regarding the earth spike. Does it need to go directly back to the MET or can I connect it directly into the generator earth terminal, the latter being Quite a lot simpler   In my case? 


thanks

Parents
  • 0
    Relying on the DNO earth (TNS or other) may not be wise if the power is off completely, as it may be off because the supply cable is damaged or because the DNO are working on the earth. Supplementary generation like solar panels that cannot run as an "island" does not have this issue.


    In reality you will have plenty of local  electrodes in the form of plumbing, and barn foundations and  and so on in the ground, maybe the odd container on skids but you may well have nothing that is labelled as an official one.

    I assume the wire from genset to buildings will include a CPC ?

    Regardless if the genset sports an electrode and an RCD that should be fine, whatever the DNO supply does.

    Mike.
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  • 0
    Relying on the DNO earth (TNS or other) may not be wise if the power is off completely, as it may be off because the supply cable is damaged or because the DNO are working on the earth. Supplementary generation like solar panels that cannot run as an "island" does not have this issue.


    In reality you will have plenty of local  electrodes in the form of plumbing, and barn foundations and  and so on in the ground, maybe the odd container on skids but you may well have nothing that is labelled as an official one.

    I assume the wire from genset to buildings will include a CPC ?

    Regardless if the genset sports an electrode and an RCD that should be fine, whatever the DNO supply does.

    Mike.
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