At last got a date for EDF to install meters to my barn, which is a
couple of days after they are installing the overhead (so TT) 3 phase
supply. Electrical installation has been tested and certified by a
NICEIC sparks. Meter box has been installed on the outside wall with
tails entering it. Cross bonding is in place, as is an earth from a
huge earth spike. Anything else needed???? I remember coming across an
EDF document (by Googling) detailing common reasons for refusing to
connect but now cannot re-find it!

AWEM

In article ,
"Andrew Mawson" writes:
At last got a date for EDF to install meters to my barn, which is a
couple of days after they are installing the overhead (so TT) 3 phase

Overhead doesn't necessarily imply TT.
Some overhead supply networks are suitable for TN-C-S.
If yours is, I would get them to present you with the
earthing terminal from it (even if you don't decide to
use it immediately).

supply. Electrical installation has been tested and certified by a
NICEIC sparks. Meter box has been installed on the outside wall with
tails entering it. Cross bonding is in place, as is an earth from a
huge earth spike. Anything else needed???? I remember coming across an
EDF document (by Googling) detailing common reasons for refusing to
connect but now cannot re-find it!

Tea, lots of sugar, nice biscuits or home made cakes. Comes in
very useful if you need to blag something off their van which
you were supposed to provide!

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

In article , Andrew Gabriel
writes
In article ,
"Andrew Mawson" writes:
At last got a date for EDF to install meters to my barn, which is a
couple of days after they are installing the overhead (so TT) 3 phase

Overhead doesn't necessarily imply TT.
Some overhead supply networks are suitable for TN-C-S.
If yours is, I would get them to present you with the
earthing terminal from it (even if you don't decide to
use it immediately).

Yeah, they came through the village where I am doing the renovation last
year replacing all the overhead cables. When the new meter was
installed later that year I was told that it was suitable for TN-C-S.

Cheers

Martin
--
Martin Carroll

On Wed, 04 Feb 2009 23:36:45 +0000, Martin Carroll wrote:

In article , Andrew Gabriel
writes

Some overhead supply networks are suitable for TN-C-S.
If yours is, I would get them to present you with the
earthing terminal from it (even if you don't decide to
use it immediately).

Yeah, they came through the village where I am doing the renovation last
year replacing all the overhead cables. When the new meter was
installed later that year I was told that it was suitable for TN-C-S.

The meter or the supply is suitable for TN-C-S? Meters are suitable for
any supply, it's the supply cable that either does or doesn't have an
earth. If it does it's either separate: TN-S, or using the neutral:
TN-C, which is then split out in the supplier's "head" within the
consumer's premises into a separate earth making TN-C-S. In the case of an
overhead supply I suppose they connect the neutral to earth (as in the
brown stuff we stand on) at various intervals along the supply cable run.

--
John Stumbles -- http://yaph.co.uk

I can't stand intolerance

In article , YAPH
writes
On Wed, 04 Feb 2009 23:36:45 +0000, Martin Carroll wrote:

In article , Andrew Gabriel
writes

Some overhead supply networks are suitable for TN-C-S.
If yours is, I would get them to present you with the
earthing terminal from it (even if you don't decide to
use it immediately).

Yeah, they came through the village where I am doing the renovation last
year replacing all the overhead cables. When the new meter was
installed later that year I was told that it was suitable for TN-C-S.

The meter or the supply is suitable for TN-C-S? Meters are suitable for
any supply, it's the supply cable that either does or doesn't have an
earth. If it does it's either separate: TN-S, or using the neutral:
TN-C, which is then split out in the supplier's "head" within the
consumer's premises into a separate earth making TN-C-S. In the case of an
overhead supply I suppose they connect the neutral to earth (as in the
brown stuff we stand on) at various intervals along the supply cable run.

Sorry, lazy typing! I meant the supply - not the metre.

Yes, I believe that they do earth every few poles. In fact when the
meter was first moved to a temporary position earlier in the year the
engineers said that theoretically the supply was suitable for TN-C-S but
that they didn't recommend it at that time. That was prior to the new
cabling in the village.
--
Martin Carroll

"Martin Carroll" wrote in message
...
In article , YAPH

writes
On Wed, 04 Feb 2009 23:36:45 +0000, Martin Carroll wrote:

In article , Andrew
Gabriel
writes

Some overhead supply networks are suitable for TN-C-S.
If yours is, I would get them to present you with the
earthing terminal from it (even if you don't decide to
use it immediately).

Yeah, they came through the village where I am doing the
renovation last
year replacing all the overhead cables. When the new meter was
installed later that year I was told that it was suitable for
TN-C-S.

The meter or the supply is suitable for TN-C-S? Meters are suitable
for
any supply, it's the supply cable that either does or doesn't have
an
earth. If it does it's either separate: TN-S, or using the neutral:
TN-C, which is then split out in the supplier's "head" within the
consumer's premises into a separate earth making TN-C-S. In the
case of an
overhead supply I suppose they connect the neutral to earth (as in
the
brown stuff we stand on) at various intervals along the supply
cable run.

Sorry, lazy typing! I meant the supply - not the metre.

Yes, I believe that they do earth every few poles. In fact when the
meter was first moved to a temporary position earlier in the year
the
engineers said that theoretically the supply was suitable for TN-C-S
but
that they didn't recommend it at that time. That was prior to the
new
cabling in the village.
--
Martin Carroll

Well if the neutral is earthed at any point on this feed, it'll pretty
certainly be at the pole that will supply me, as it's infact an 'H
pole' pair with a darn great 11KV to 415v transformer sat on it. Close
to the base of it is where my wife's greenhouse is, and before we
levelled the ground for it I got EDF to test for cables - during the
levelling we found the stubbs of a previous H pole, and the earth
plate from the old set up! (no definately NOT attached to the current
set up!!!)

AWEM