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Discuss Time delay RCDs and cables in walls in the Periodic Inspection Reporting & Certification area at ElectrciansForums.co.uk.

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  1. oxford 12

    oxford 12 Regular EF Member

    Your carrying out an eicr on a domestic property with a time delay 100mA RCD protecting lighting cables within 50 mm of the surface.
    What code would you give it c3 or c2?
  2. Pete999

    Pete999 Trusted Advisor

    What do you think and why
  3. spinlondon

    spinlondon Trusted Advisor

    Harlow Essex
    If the cables do not have another acceptable method of protection, and they are run in prescribed routes, code C3.
  4. Vortigern

    Vortigern Electrician's Arms

    What system? Anyway C1
  5. Ian1981

    Ian1981 Active EF Member

    North east
    Cables buried less than 50mm from surface require protection by mechanical protection such as earthed metallic conduit ,swa etc or be installed with additional protection by an rcd.
    Only a 30ma rcd offers additional protection in this manner.
    The OP needs to decide if indeed it's a C2 which is potentially dangerous or C3 requires improvement to make it safer.
  6. westward10

    westward10 Electrician's Arms

    Top Poster Of Month

    You been at the undiluted Ribena again.
    Andy-1960 and EMMEC like this.
  7. Vortigern

    Vortigern Electrician's Arms

    HEhe yeah, well he didn't say buried in walls so I imagine they are floating around in the air.
    EMMEC likes this.
  8. EMMEC

    EMMEC Regular EF Member


    I like Your comments :))
    westward10 and Rpa07 like this.
  9. Wilko

    Wilko Gorillas are Great Electrician's Arms

    RCD protection for cables in walls came in with 17th IIRC (?) so if it was built prior and it's in good condition etc then isn't it a C3 at most?
    Rpa07 likes this.
  10. Rpa07

    Rpa07 1000 posts only 44653 behind Telectrix! Electrician's Arms

    He's the only one!
    westward10 likes this.
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