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The Value of R.C.D.s

Zoomup

There have been many discussions recently about R.C.D.s, whether they really are necessary, and is an installation necessarily unsafe if it is old and has no, or insufficient, R.C.D. protection.

 

Well consider this please. If you are driving and need to brake hard to save somebody from injury or death does that incident ever get reported. If you knocked somebody over due to having bad vehicle brakes then it might.

 

If an R.C.D. operates correctly and saves somebody from injury or death, does that every get reported? There may have been 10s, 100s or even thousands of cases where an R.C.D. has saved somebody from injury or death, but we will never know the numbers because of a lack of reporting of the cases.

 

Personally I like the idea of R.C.D. protection

 

Z.

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    davezawadi (David Stone): 
     

    You beat me zoom, I hope that was only one at a time! Old TVs were live chassis, but two of them at once were a serious risk depending on which way around the two-pin plug was inserted.

    It didn't even have to be 2-pin plug - most TVs had the chassis connected to supply N - but a few models were designed to have the chassis connected to L instead (the give away was an isolating transformer on the aerial socket) - so one of each of those side-by-side could be very interesting if both on the same supply (isolated or not). A separate isolation transformer for each TV of course would be better (perhaps where the idea of a separated supply for one item of equipment comes from?)

       - Andy.

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  • 0

    davezawadi (David Stone): 
     

    You beat me zoom, I hope that was only one at a time! Old TVs were live chassis, but two of them at once were a serious risk depending on which way around the two-pin plug was inserted.

    It didn't even have to be 2-pin plug - most TVs had the chassis connected to supply N - but a few models were designed to have the chassis connected to L instead (the give away was an isolating transformer on the aerial socket) - so one of each of those side-by-side could be very interesting if both on the same supply (isolated or not). A separate isolation transformer for each TV of course would be better (perhaps where the idea of a separated supply for one item of equipment comes from?)

       - Andy.

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