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Zone 1.

Zoomup

After an N.I.C.E.I.C E.I.C.R. report I attended to see about some remedial work.

The house is TN-S supplied with a Ze of 0.64 Ohms. The main earthing conductor just pulled out when I tugged on it in the presence of the homeowner. Not good.

Anyway, in the bathroom is a cast iron bath tub. Immediately above it is a chrome finish spot light bar, reported to be suitable for zone 1 use. I do not know if it is a Class 1 or 2 fitting at this stage, but the owner will give me details later on.

A person standing in the bath tub can easily touch the metal luminaire as it is very low, mounted on a wooden beam.

Would you bond it to the bath tub pipework?

 

Z.

 

 

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    Ref. the low metal light bar in zone 1 immediately above the metal bath, which is supplied by metal pipes to the taps……

    What is the user risk regarding simultaneous contact of the bath/taps and metal light bar if the light bar is Class 2 but electrically leaky. That is one reason why I considered supplementary bonding.

    The crux of the matter is: Just how does a metal lighting product comply if it boasts “suitable for Zone 1 installation?"

    Is it just made to keep water and steam out, and/or comply with certain electrical standards of high insulation and quality standards?

    The light bar immediately above the bath inviting adjustment by a bather is like this model

     

     

    Z.

Reply
  • 0

    Ref. the low metal light bar in zone 1 immediately above the metal bath, which is supplied by metal pipes to the taps……

    What is the user risk regarding simultaneous contact of the bath/taps and metal light bar if the light bar is Class 2 but electrically leaky. That is one reason why I considered supplementary bonding.

    The crux of the matter is: Just how does a metal lighting product comply if it boasts “suitable for Zone 1 installation?"

    Is it just made to keep water and steam out, and/or comply with certain electrical standards of high insulation and quality standards?

    The light bar immediately above the bath inviting adjustment by a bather is like this model

     

     

    Z.

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