" SRCDS are only intended to supplementary protection downstream of the SRCD. SRCDs are intended for use in circuits where the fault protection and additional protection are already assured upstream upstream of the SRCD".
So these devices can no longer be used for additional protection. I assume this is why the do not appear in Appendix 1 of BS 7671 or in the body of the standard.
I do not know if SRCDs made to the previous standard, BS 7288: 2009, are suitable for additional protection as they were of a different construction or it was discovered that all types are unsuitable?
So if you discovered an SRCD installed on an installation for additional protection or fault protection on a Periodic Inspection they would be a C2?
I think this is the issue Graham Kenyon was referring to on the earlier thread.
" SRCDS are only intended to supplementary protection downstream of the SRCD. SRCDs are intended for use in circuits where the fault protection and additional protection are already assured upstream upstream of the SRCD".
So these devices can no longer be used for additional protection. I assume this is why the do not appear in Appendix 1 of BS 7671 or in the body of the standard.
I do not know if SRCDs made to the previous standard, BS 7288: 2009, are suitable for additional protection as they were of a different construction or it was discovered that all types are unsuitable?
So if you discovered an SRCD installed on an installation for additional protection or fault protection on a Periodic Inspection they would be a C2?
I think this is the issue Graham Kenyon was referring to on the earlier thread.
