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PME vs TN-C-S

AncientMariner
Are PME and TN-C-S supplies exactly the same?  Or does PME also have requirements regarding the number and relative location of suppliers earthing rods?

I am thinking here where the DNO replaces a length of failed 4-core (3-phase + Neutral) PILC cable with Wavecon or similar cable which has a combined Neutral and Earth conductor.  The average consumer would not know that their electricity supply's method of earthing had been changed.

Clive.
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    There is absolutely nothing to prevent such labels ... although I would question whether they need to be safety signs?


    Just an information/instruction notice is good enough I think.
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    There is absolutely nothing to prevent such labels ... although I would question whether they need to be safety signs?


    Just an information/instruction notice is good enough I think.
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