Re: Euro colour shenanigans.

Clive Mitchell wrote:

> Look in many street lighting control cabinets and you'll see a bunch of
> standard three phase wire armours feeding single phase loads.  That
> particular industry is a heavy user of the three core cable, yet it has
> absolutely no application for a delta supply.

True.


>Even the four core (three
> phase and neutral) cable doesn't address the issue of an auxiliary earth
> wire.

Yes. That I've never understood at all. I can see a cable manufacturer
saying that there needs to be a certain level of demand to make it
commercially viable to produce a cable. But cables are produced without
earth wires I know not.

And, I must admit, I hadn't thought of street lighting as a user of
single phase armoured though you must be right.



> Presumably the cable manufacturers have absolute confidence in the steel
> armour as a primary earth conductor.
>

You know,somehow, just somehow, in this day and age I don't think
they'd be prepared to say you can use their armour as a primary earth
conductor......


Andy

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