On Sat, 12 May 2018 12:59:25 +0100, ARW
Post by ARWPost by StephenPost by ARWPost by StephenHI, I will shortly be running 25mm blue MDPE pipe AND 10mm2 SWA cable
from one end of the garden to the other end via a 2 feet deep trench.
WHats the minimum separation distance required between the blue MDPE
pipe and the 10mm2 SWA cable?
Regards,
A spades width:-)
Or put the water pipe in at 750mm and the SWA in at 400mm.
And I have loads of underground electrical warning tape if you want
some, just email me.
So the digger's bucket should be wide enough then if I put the blue MDPE
in one of the bottom corner edges and the SWA in the opposite corner
edges then.......
Yes.
Post by StephenOne thing that is annoying about SWA cables is that it only semes to be
available as 3 phase, not in single phase plus earth! So I'm forced to
put sticky coloured tape on the conductors at both ends of the SWA!
It's not that big a deal:-)
It was on a site I went to at Cambridge. The 110V shower was supplied
from SWA with a green sheath on the [grey] CT of the transformer, the
other green sheath at the shower end was placed on a [black] 110V feed
and connected to ground of course.
It was on that site that I heard one of the most profound, logical
observations that I have ever come across.
The site Electrician explained that the transformer had "lost it's
smoke"
He had seen electrical items lose their smoke before, it seems the
only way to get the things working again, is to collect all the smoke
that was lost, and put it back.
He persuaded me that there was little point finding all that missing
smoke, so I snipped the cable ends and saw to it that another
transformer was supplied.
I wonder if we will go back to RYB ?
At least the consensus on what core to use as ground was fairly
universal.
AB