HI, 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,

Stephen.

On 11/05/2018 21:09, Stephen wrote:
HI, 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
pipeÂ* 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.


--
Adam

On 12/05/2018 08:15, ARW wrote:
On 11/05/2018 21:09, Stephen wrote:
HI, 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
pipeÂ* 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.......

One 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!

Stephen wrote:

One 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!

Use 2-core (brown/blue) with the armour as the earth?

OR if you want a green/yellow earth core, toolstation have a photo that
shows this

https://www.toolstation.com/shop/p57367

I think I'd ask to check the actual colours before buying though,
because I'd normally expect brown/black/grey ...

On 12/05/2018 09:03, Stephen wrote:
On 12/05/2018 08:15, ARW wrote:
On 11/05/2018 21:09, Stephen wrote:
HI, 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
pipeÂ* 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.

One 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:-)

--
Adam

I dont like digging so I like to install buried armoured cable in a duct of generously sized black plastic tube along with a draw cord. Belt and braces in case the cable needs replacing or you want to install another circuit.

On Friday, 11 May 2018 21:09:27 UTC+1, Stephen wrote:

HI, 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,

Stephen.

If you used barrier pipe for the water the cable could go inside the pipe for extra good cooling, then you could run your 3 phase lathe off a couple of bis of bell wire & save tuppence

No, don't really do it. Someone probably has tried it somewhere.


NT

In message ,
Cynic writes
I dont like digging so I like to install buried armoured cable in a
duct of generously sized black plastic tube along with a draw cord.
Belt and braces in case the cable needs replacing or you want to
install another circuit.

Mice love to chew up fibre draw cords:-(

--
Tim Lamb

On 12/05/2018 21:41, Cynic wrote:
I dont like digging so I like to install buried armoured cable in a
duct of generously sized black plastic tube along with a draw cord.
Belt and braces in case the cable needs replacing or you want to
install another circuit.

Another option is to install the duct, but with the SWA *outside* of it.
That way you still have the future expansion capability and don't end up
using some of it before you start.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On 12/05/2018 09:03, Stephen wrote:
On 12/05/2018 08:15, ARW wrote:
On 11/05/2018 21:09, Stephen wrote:
HI, 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.



One 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!

https://www.tlc-direct.co.uk/Products/SW4slash2.html


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On 12/05/2018 21:41, Cynic wrote:
I dont like digging so I like to install buried armoured cable in a duct of generously sized black plastic tube along with a draw cord. Belt and braces in case the cable needs replacing or you want to install another circuit.


I don't like digging. If I need a trench digging I get the village idiot
to dig it for me. It's my version of care in the community.


--
Adam

On Sat, 12 May 2018 12:59:25 +0100, ARW
wrote:

On 12/05/2018 09:03, Stephen wrote:
On 12/05/2018 08:15, ARW wrote:
On 11/05/2018 21:09, Stephen wrote:
HI, 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.

One 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

In article , Archibald Tarquin
Blenkinsopp wrote:
On Sat, 12 May 2018 12:59:25 +0100, ARW
wrote:

On 12/05/2018 09:03, Stephen wrote:
On 12/05/2018 08:15, ARW wrote:
On 11/05/2018 21:09, Stephen wrote:
HI, 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.

One 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.

The "lost smoke" concept is related to the "Dark Sucker" theory of light
bulbs.

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle

In message , Archibald
Tarquin Blenkinsopp writes
On Sat, 12 May 2018 12:59:25 +0100, ARW
wrote:
Yes.

One 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.

Is there an established phase rotation with grey/brown/black as there
was with RYB?

I've been re-using salvaged 4mm singles now connected to a pre-change
supply. Curiously only 1 out of 4 machines rotated correctly.

For obvious reasons, I don't bother with the National Lottery:-)

--
Tim Lamb

On Tue, 19 Jun 2018 08:59:19 +0100, Tim Lamb
wrote:

In message , Archibald
Tarquin Blenkinsopp writes
On Sat, 12 May 2018 12:59:25 +0100, ARW
wrote:
Yes.

One 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.

Is there an established phase rotation with grey/brown/black as there
was with RYB?

I've been re-using salvaged 4mm singles now connected to a pre-change
supply. Curiously only 1 out of 4 machines rotated correctly.

For obvious reasons, I don't bother with the National Lottery:-)

There is indeed, there seems no strict convention as to whether the
black or grey becomes ground in single phase applications though.

On the plus side, I have never seen the brown with a green tracer on
it. :-)

AB

On Mon, 18 Jun 2018 22:46:29 +0100, charles
wrote:

In article , Archibald Tarquin
Blenkinsopp wrote:
On Sat, 12 May 2018 12:59:25 +0100, ARW
wrote:

On 12/05/2018 09:03, Stephen wrote:
On 12/05/2018 08:15, ARW wrote:
On 11/05/2018 21:09, Stephen wrote:
HI, 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.

One 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.

The "lost smoke" concept is related to the "Dark Sucker" theory of light
bulbs.

You cannot have a dark sucker theory of light bulbs, the two things
are mutually exclusive.

You can have a dark sucker theory of dark suckers, most of the work
on the theory was indeed written up with the aid of darksuckers, but
having located your dark sucker, it is no longer a theory :-)

AB