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The Value of R.C.D.s

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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): 
     

    I do think safety is a consideration and thus an RCD. Please refer to the post above and perhaps consider what it says. An installation disconnected as a whole with a double pole RCD is absolutely safe, it may have other problems but they are not electrically dangerous. A smart meter is no different from a single RCD, it disconnects the electrical installation for some reason, perhaps loading, but this is not considered dangerous. You will notice that smart Gas meters do not have this function, because turning off gas can be inherently dangerous.

    If anyone thinks “other problems” are OK … well, your insurer won't pay out for freezers full of food repeatedly … and then there's the point that protective devices are only specified for a finite number of operations.

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    davezawadi (David Stone): 
     

    I do think safety is a consideration and thus an RCD. Please refer to the post above and perhaps consider what it says. An installation disconnected as a whole with a double pole RCD is absolutely safe, it may have other problems but they are not electrically dangerous. A smart meter is no different from a single RCD, it disconnects the electrical installation for some reason, perhaps loading, but this is not considered dangerous. You will notice that smart Gas meters do not have this function, because turning off gas can be inherently dangerous.

    If anyone thinks “other problems” are OK … well, your insurer won't pay out for freezers full of food repeatedly … and then there's the point that protective devices are only specified for a finite number of operations.

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