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Would you recommend a C3 for no visibility of the earth spike/plate?

JME

Good afternoon. Done an EICR and it was a TT system. Could not find the earth spike anywhere. My earth fault loop impedance was good enough 77.6 ohms. The consumer unit has RCD protection. Would you recommend a C3 for no visibility of earth spike/plate. Thanks 

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    Just add a new ConduDisc with new cable.  Label up the cable at CU (Consumer Unit) as Earthing and VERY importantly state location of ConduDisc (other brands are available).  Discs are more favourable to spikes depending on location, eg Central london driving a spike 2 meters into the ground you COULD hit a buried service.  This will then allow you to STATE Earth Rod/Spike/Plate present and its location and impedance as a matter of Fact rather than just a measurement of impedance with unknown Fault Paths.  The Caveat.... Consider the next person, make sure that the Labels are good/clear/concise and that there is clear access to the CU/DB and Earthing system for future work or inspections.  Eg Under floor boards with no access hatch is a No...No.  This will negate for assumptions on the Earthing, if it is present or what format/arrangement it has.

    With the above being said some people will argue that an EICR/Periodic Inspect is just that.  An inspect followed by Test.  This will be used as the basis for a report and/or certificate.  Any remedial/s is a separate task or set of tasks for a future date.  

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  • 0

    Just add a new ConduDisc with new cable.  Label up the cable at CU (Consumer Unit) as Earthing and VERY importantly state location of ConduDisc (other brands are available).  Discs are more favourable to spikes depending on location, eg Central london driving a spike 2 meters into the ground you COULD hit a buried service.  This will then allow you to STATE Earth Rod/Spike/Plate present and its location and impedance as a matter of Fact rather than just a measurement of impedance with unknown Fault Paths.  The Caveat.... Consider the next person, make sure that the Labels are good/clear/concise and that there is clear access to the CU/DB and Earthing system for future work or inspections.  Eg Under floor boards with no access hatch is a No...No.  This will negate for assumptions on the Earthing, if it is present or what format/arrangement it has.

    With the above being said some people will argue that an EICR/Periodic Inspect is just that.  An inspect followed by Test.  This will be used as the basis for a report and/or certificate.  Any remedial/s is a separate task or set of tasks for a future date.  

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