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Shock Likelihood at Switch.

Mornin' All,


I have just inspected and tested a renovated  old flat's wiring. The original lighting wiring in places has no circuit protective conductor. The owner has installed metal plate light switches to two positions with wooden back boxes. At these two positions there is no circuit protective conductor. The flat has a new R.C.B.O. consumer unit and all other wiring is good.


I have recommended that the switches have a C.P.C. installed (difficult and disruptive) or be changed to all insulated types.


Just what is the shock risk at these two switch positions? What is the likelihood of the metal plates becoming live due to a fault? Has anyone every seen a metal plate switch break down so that the plates becomes live?


Thanks,


Z.

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  • Former Community Member
    0 Former Community Member
    And as to any recipients of a Satisfactory EICR endorsed with C3 "improvement recommended" or the earlier version of Satisfactory PIR  endorsed with 2 "requires improvement", in the last 30 or more years of reviewing these and their subsequent report after the recommended interval, I've yet to see one out of the many hundreds, that the second report doesn't pick up the same, un-improved items.


    There is absolutely no incentive for the recipient to do anything about remedial work because as far as they are concerned, the compiler has issued a document with the front page declaration of it being satisfactory............. They simply pass it on to the enforcing body (insurer, Local Authority etc) who required the piece of paper, who in turn files it under "satisfactory".It is not their job to question the competence or accuracy of the document, they at best rely on the compiler being "approved" by a scheme.


    It only ever gets read again when produced as "exhibit A"..........


    Should the enforcing body representative be asked when "gripping the bar" why they accepted it, their response is simply that "what more could we have been reasonably expected to do, having already restricted the reports to a scheme member?". Now if the scheme has approved someone that clearly isn't up to scratch, perhaps the scheme should be asked to join me in gripping the bar?


    In turn, the scheme representative will refer to their "guidance notes" and then invite the compiler to take his place in the bar gripping experience.


    Regards


    BOD
Reply
  • Former Community Member
    0 Former Community Member
    And as to any recipients of a Satisfactory EICR endorsed with C3 "improvement recommended" or the earlier version of Satisfactory PIR  endorsed with 2 "requires improvement", in the last 30 or more years of reviewing these and their subsequent report after the recommended interval, I've yet to see one out of the many hundreds, that the second report doesn't pick up the same, un-improved items.


    There is absolutely no incentive for the recipient to do anything about remedial work because as far as they are concerned, the compiler has issued a document with the front page declaration of it being satisfactory............. They simply pass it on to the enforcing body (insurer, Local Authority etc) who required the piece of paper, who in turn files it under "satisfactory".It is not their job to question the competence or accuracy of the document, they at best rely on the compiler being "approved" by a scheme.


    It only ever gets read again when produced as "exhibit A"..........


    Should the enforcing body representative be asked when "gripping the bar" why they accepted it, their response is simply that "what more could we have been reasonably expected to do, having already restricted the reports to a scheme member?". Now if the scheme has approved someone that clearly isn't up to scratch, perhaps the scheme should be asked to join me in gripping the bar?


    In turn, the scheme representative will refer to their "guidance notes" and then invite the compiler to take his place in the bar gripping experience.


    Regards


    BOD
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