Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to
a garden shed/outbuilding. The electrician originally asked to do this
job has disappeared after partially completing it. He has connected a
roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The run
is a good 25 metres and I can't tell exactly what size the cable is.

It looks about 4mm but all I can on it is the following: BASEC
ELECTRICAL 600/1000 BS 5467 2017.

Doesn't tell me much, does anyone here know how its size/rating can be
determined?

"Handy Andy" wrote in message
o.uk...

Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to a
garden shed/outbuilding. The electrician originally asked to do this job
has disappeared after partially completing it. He has connected a roll of
SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The problem
is that the appliances to be installed in there will use about 6kW of power
and I'm not sure that the SWA is rated high enough. The run is a good 25
metres and I can't tell exactly what size the cable is.

It looks about 4mm but all I can on it is the following: BASEC ELECTRICAL
600/1000 BS 5467 2017.

Doesn't tell me much, does anyone here know how its size/rating can be
determined?

Accurately measure the outer diameter and compare with the likely sizes on
the TLC web site

https://www.tlc-direct.co.uk/Main_In...SWA/index.html

If you follow the link for each cable type the o/d is quoted

Andrew

On Monday, 1 January 2018 15:59:06 UTC, Handy Andy wrote:
Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to
a garden shed/outbuilding. The electrician originally asked to do this
job has disappeared after partially completing it. He has connected a
roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The run
is a good 25 metres and I can't tell exactly what size the cable is.

It looks about 4mm but all I can on it is the following: BASEC
ELECTRICAL 600/1000 BS 5467 2017.

Doesn't tell me much, does anyone here know how its size/rating can be
determined?

Snip a little bit off one of the cores and compare the size of the conductors with a known bit of cable in one of the sheds/DIY shops (B&Q etc)

On 01-Jan-18 4:24 PM, harry wrote:
On Monday, 1 January 2018 15:59:06 UTC, Handy Andy wrote:
Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to
a garden shed/outbuilding. The electrician originally asked to do this
job has disappeared after partially completing it. He has connected a
roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The run
is a good 25 metres and I can't tell exactly what size the cable is.

It looks about 4mm but all I can on it is the following: BASEC
ELECTRICAL 600/1000 BS 5467 2017.

Doesn't tell me much, does anyone here know how its size/rating can be
determined?

Snip a little bit off one of the cores and compare the size of the conductors with a known bit of cable in one of the sheds/DIY shops (B&Q etc)


Andrew/Harry

Many thanks for the excellent ideas.

On 01/01/2018 16:23, Andrew Mawson wrote:
"Handy Andy" wrote in message
o.uk...

Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation
to a garden shed/outbuilding. The electrician originally asked to do
this job has disappeared after partially completing it. He has
connected a roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The
run is a good 25 metres and I can't tell exactly what size the cable is.

It looks about 4mm but all I can on it is the following: BASEC
ELECTRICAL 600/1000 BS 5467 2017.

Doesn't tell me much, does anyone here know how its size/rating can be
determined?

Accurately measure the outer diameter and compare with the likely sizes
on the TLC web site

https://www.tlc-direct.co.uk/Main_In...SWA/index.html

If you follow the link for each cable type the o/d is quoted

Alternatively, they are all in one table he

http://wiki.diyfaq.org.uk/index.php/..._Wire_Armoured



--
Cheers,

John.

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

On 01/01/2018 15:59, Handy Andy wrote:

Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to
a garden shed/outbuilding. The electrician originally asked to do this
job has disappeared after partially completing it. He has connected a
roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The run
is a good 25 metres and I can't tell exactly what size the cable is.

Full details of what you need to do are covered he

http://wiki.diyfaq.org.uk/index.php/...ub_main_design

However, if you have 6kW of load, that's about 26A total. At 12mV/A/m
voltage drop (if it is 4mm^2) that puts you at about 6.9V at 25m, which
is just about ok. Current carrying capacity is ample for that load.



--
Cheers,

John.

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

In message , John
Rumm writes
On 01/01/2018 15:59, Handy Andy wrote:

Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to
a garden shed/outbuilding. The electrician originally asked to do this
job has disappeared after partially completing it. He has connected a
roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The run
is a good 25 metres and I can't tell exactly what size the cable is.

Full details of what you need to do are covered he

http://wiki.diyfaq.org.uk/index.php/...ub_main_design

However, if you have 6kW of load, that's about 26A total. At 12mV/A/m
voltage drop (if it is 4mm^2) that puts you at about 6.9V at 25m, which
is just about ok. Current carrying capacity is ample for that load.

ISTR various earlier threads about exporting earths, suitability of
cable armouring for that purpose and local earth rods.

--
Tim Lamb

On 01/01/2018 19:37, Tim Lamb wrote:
In message , John
Rumm writes
On 01/01/2018 15:59, Handy Andy wrote:

Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to
a garden shed/outbuilding. The electrician originally asked to do this
job has disappeared after partially completing it. He has connected a
roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The run
is a good 25 metres and I can't tell exactly what size the cable is.

Full details of what you need to do are covered he

http://wiki.diyfaq.org.uk/index.php/...ub_main_design


However, if you have 6kW of load, that's about 26A total. At 12mV/A/m
voltage drop (if it is 4mm^2) that puts you at about 6.9V at 25m,
which is just about ok. Current carrying capacity is ample for that load.

ISTR various earlier threads about exporting earths, suitability of
cable armouring for that purpose and local earth rods.

Yup that's in that article above as well.


--
Cheers,

John.

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

On 01-Jan-18 6:34 PM, John Rumm wrote:
On 01/01/2018 15:59, Handy Andy wrote:

Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to
a garden shed/outbuilding. The electrician originally asked to do this
job has disappeared after partially completing it. He has connected a
roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The run
is a good 25 metres and I can't tell exactly what size the cable is.

Full details of what you need to do are covered he

http://wiki.diyfaq.org.uk/index.php/...ub_main_design


However, if you have 6kW of load, that's about 26A total. At 12mV/A/m
voltage drop (if it is 4mm^2) that puts you at about 6.9V at 25m, which
is just about ok. Current carrying capacity is ample for that load.



Very useful information. Thanks for that.

The SWA route to the outbuilding is across some pretty difficult ground,
so burying the cable in places is liable to be quite a problem, any
views on an alternative?

Handy Andy wrote:
On 01-Jan-18 6:34 PM, John Rumm wrote:
On 01/01/2018 15:59, Handy Andy wrote:

Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to
a garden shed/outbuilding. The electrician originally asked to do this
job has disappeared after partially completing it. He has connected a
roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The run
is a good 25 metres and I can't tell exactly what size the cable is.

Full details of what you need to do are covered he

http://wiki.diyfaq.org.uk/index.php/...ub_main_design


However, if you have 6kW of load, that's about 26A total. At 12mV/A/m
voltage drop (if it is 4mm^2) that puts you at about 6.9V at 25m,
which is just about ok. Current carrying capacity is ample for that load.



Very useful information. Thanks for that.

The SWA route to the outbuilding is across some pretty difficult ground,
so burying the cable in places is liable to be quite a problem, any
views on an alternative?

ANFO ?

On 02/01/2018 07:25, Handy Andy wrote:
On 01-Jan-18 6:34 PM, John Rumm wrote:
On 01/01/2018 15:59, Handy Andy wrote:

Be grateful for some advice from the electricians here.

I've been asked by a relative to complete an electrical installation to
a garden shed/outbuilding. The electrician originally asked to do this
job has disappeared after partially completing it. He has connected a
roll of SWA via an isolator, but that is as far as he got.

It's a relatively simple matter of running the SWA to a CU in the
outbuilding and putting in some lights and a couple of sockets. The
problem is that the appliances to be installed in there will use about
6kW of power and I'm not sure that the SWA is rated high enough. The run
is a good 25 metres and I can't tell exactly what size the cable is.

Full details of what you need to do are covered he

http://wiki.diyfaq.org.uk/index.php/...ub_main_design


However, if you have 6kW of load, that's about 26A total. At 12mV/A/m
voltage drop (if it is 4mm^2) that puts you at about 6.9V at 25m,
which is just about ok. Current carrying capacity is ample for that load.



Very useful information. Thanks for that.

The SWA route to the outbuilding is across some pretty difficult ground,
so burying the cable in places is liable to be quite a problem, any
views on an alternative?

It does not have to be buried. It can fixed to any suitable structure
(i.e. preferable not something "temporary" like fence panels). All you
are really attempting to do it keep it out of harms way.


--
Cheers,

John.

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

In message , John
Rumm writes
On 02/01/2018 07:25, Handy Andy wrote:
On 01-Jan-18 6:34 PM, John Rumm wrote:
However, if you have 6kW of load, that's about 26A total. At 12mV/A/m
voltage drop (if it is 4mm^2) that puts you at about 6.9V at 25m,
which is just about ok. Current carrying capacity is ample for that load.



Very useful information. Thanks for that.

The SWA route to the outbuilding is across some pretty difficult ground,
so burying the cable in places is liable to be quite a problem, any
views on an alternative?

It does not have to be buried. It can fixed to any suitable structure
(i.e. preferable not something "temporary" like fence panels). All you
are really attempting to do it keep it out of harms way.

You could find someone local with compressed air moleing tackle.

Alternatively, if it is only concrete paths or other small obstacles,
you could trench either side and then whack a length of steel water pipe
through with a sledge hammer. Doesn't work too well in Herts. with our
flints!

--
Tim Lamb

In article , Tim Lamb
wrote:
In message , John
Rumm writes
On 02/01/2018 07:25, Handy Andy wrote:
On 01-Jan-18 6:34 PM, John Rumm wrote:
However, if you have 6kW of load, that's about 26A total. At 12mV/A/m
voltage drop (if it is 4mm^2) that puts you at about 6.9V at 25m,
which is just about ok. Current carrying capacity is ample for that
load.



Very useful information. Thanks for that.

The SWA route to the outbuilding is across some pretty difficult
ground, so burying the cable in places is liable to be quite a
problem, any views on an alternative?

It does not have to be buried. It can fixed to any suitable structure
(i.e. preferable not something "temporary" like fence panels). All you
are really attempting to do it keep it out of harms way.

You could find someone local with compressed air moleing tackle.

Alternatively, if it is only concrete paths or other small obstacles,
you could trench either side and then whack a length of steel water pipe
through with a sledge hammer. Doesn't work too well in Herts. with our
flints!

you aren't the only ones to have flints

--
from KT24 in Surrey, England