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EICR Certificate - Should Bathroom light not having RCD protection be C2 or C3?

AdamG

Hello,

Is anyone able to please clarify?  An electrician has just undertaken an inspection to allow an EICR to be issued.  They have stated there is a requirement to have RCD protection for the bathroom light (given it a code C2) and so they are quoting £600 to fit a new consumer unit.  I appreciate that if the house was being built today that it would need to comply with the 18th edition regs which came into force in Jan 2019 and hence would indeed need an RCD on the bathroom light but my house was built in 1956 although has a 16th edition CU with RCDs on socket circuits only but I thought this should be coded as a C3.  Any advice greatly appreciated.

Thanks

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    Apologies, the link i posted earlier is not the latest guide, this is bpg4-1.pdf (electricalsafetyfirst.org.uk) 

    The codings for absence of supplementary bonding and RCDs are the same, but there is an additional C3 for absence of RCD protection to lighting circuits which should have been recorded.

    I agree with David the cheapest solution would be to add an RCD in a box to the lighting circuit near the consumer unit, provided the cable in between doesn't need RCD protection for other reasons, eg buried in wall <50mm etc

    However, technically, regs 411.3.4 and 701.411.3.3 refer to circuits, and a circuit is defined as “an assembly of electrical equipment supplied from the same origin and protected against overcurrent by the same protective device(s)”, so all of the circuit past the MCB in this case. An RCBO, if available for the CU, would do the job nicely, but i doubt if anyone would code an RCD in a box in this situation.

     

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  • 0

    Apologies, the link i posted earlier is not the latest guide, this is bpg4-1.pdf (electricalsafetyfirst.org.uk) 

    The codings for absence of supplementary bonding and RCDs are the same, but there is an additional C3 for absence of RCD protection to lighting circuits which should have been recorded.

    I agree with David the cheapest solution would be to add an RCD in a box to the lighting circuit near the consumer unit, provided the cable in between doesn't need RCD protection for other reasons, eg buried in wall <50mm etc

    However, technically, regs 411.3.4 and 701.411.3.3 refer to circuits, and a circuit is defined as “an assembly of electrical equipment supplied from the same origin and protected against overcurrent by the same protective device(s)”, so all of the circuit past the MCB in this case. An RCBO, if available for the CU, would do the job nicely, but i doubt if anyone would code an RCD in a box in this situation.

     

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