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PME vs TT for charger

garywwess
Can someone please explain in common scence English (this has to be explained to a customer) ..  why it is permissible for a street light , which in itself is basically a big metal earth rod buried 5 feet in the ground.. is allowed to be PME`d  (customer used to install street lights) yet his charger has to be TT`d  and isolated from the PME at all costs..  his parking space has a street lamp smack in the middle of it ???  I neither agree or disagree with the instructions to do so… just need something in writing to show the customer to prove im not just generating extra income needlessly..

Gary
 
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  • 0
    On the subject of street lighting, I was told by the head of my local authority's Street lighting dept that they only earthed the head (light fitting) and not the column.

    Things may have changed since 2008 though!
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  • 0
    On the subject of street lighting, I was told by the head of my local authority's Street lighting dept that they only earthed the head (light fitting) and not the column.

    Things may have changed since 2008 though!
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