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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
    Hi Mike


    Sorry I wasn’t describing it right. I have a 160a mccb in my switchboard and intend to have a vigi incorporated into It when my supplier gets it. I would then be content that the overcurrent protection for the cable and generator is provided by the mccb albeit downstream. The vigi will provide fault protection to anything downstream of it although any consumer units downstream already incorporate rcd’s so the vigi will be time delayed. My only concern remaining was fault protection to the cable between the generator and mccb/vigi. This is where I thought that a tough rubber flexible cable, although probably not classed As double insulated, may be better than swa which could potentially have metallic parts in terms of damaged outer sheathing exposing metallic armour or exposed glands. There would then be no fault protection for this eventuality
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  • 0
    Hi Mike


    Sorry I wasn’t describing it right. I have a 160a mccb in my switchboard and intend to have a vigi incorporated into It when my supplier gets it. I would then be content that the overcurrent protection for the cable and generator is provided by the mccb albeit downstream. The vigi will provide fault protection to anything downstream of it although any consumer units downstream already incorporate rcd’s so the vigi will be time delayed. My only concern remaining was fault protection to the cable between the generator and mccb/vigi. This is where I thought that a tough rubber flexible cable, although probably not classed As double insulated, may be better than swa which could potentially have metallic parts in terms of damaged outer sheathing exposing metallic armour or exposed glands. There would then be no fault protection for this eventuality
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