Does anyone have any recommedations for Surge Protection Devices which
are suitable for use where they can't be fitted in a modern consumer unit?

How useful are SPDs where all the local wiring is under ground, but some
of the 11KV upstream of the local transformer is overhead?

I was surprised to discover that they are fitted in parallel with a
consumer rather before and in series.


--
Michael Chare

Michael Chare wrote:

Does anyone have any recommedations for Surge Protection Devices which
are suitable for use where they can't be fitted in a modern consumer unit?

you can get an SPDs combined with a mains isolator, e.g

https://www.tlc-direct.co.uk/Products/WYREC2SPD.html

or

https://www.tlc-direct.co.uk/Products/CGSRG1VCU.html

How useful are SPDs where all the local wiring is under ground, but some
of the 11KV upstream of the local transformer is overhead?

pass, probably depends if urban or rural, your supplier might give you
some numbers to plug into the formula

https://www.dses.co.uk/index.php/free-advice/198-the-sy2-d-surge-protector-spd

I was surprised to discover that they are fitted in parallel with a
consumer rather before and in series.

On 28/02/2021 17:27, Michael Chare wrote:
Does anyone have any recommedations for Surge Protection Devices which
are suitable for use where they can't be fitted in a modern consumer unit?

How useful are SPDs where all the local wiring is under ground, but some
of the 11KV upstream of the local transformer is overhead?

I was surprised to discover that they are fitted in parallel with a
consumer rather before and in series.



It does seem strange, safety wise, that what looks like a big red
isolation switch may not actually isolate the consumer unit.

https://www.tlc-direct.co.uk/Technic..._Datasheet.pdf



--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

On 28/02/2021 18:40, alan_m wrote:
On 28/02/2021 17:27, Michael Chare wrote:
Does anyone have any recommedations for Surge Protection Devices which
are suitable for use where they can't be fitted in a modern consumer
unit?

How useful are SPDs where all the local wiring is under ground, but
some of the 11KV upstream of the local transformer is overhead?

I was surprised to discover that they are fitted in parallel with a
consumer rather before and in series.



It does seem strange, safety wise, that what looks like a big red
isolation switch may not actually isolate the consumer unit.

https://www.tlc-direct.co.uk/Technic..._Datasheet.pdf


Yes I think the main switch just isolates the surge protector, it does
not stop power going to the Surge Protector.

If the Surge Protector stays closed the company fuse will blow. :-(



--
Michael Chare

Well somewhere in my system are some little gadgets RS used to sell as surge
protectors.They are supposed to put a shor on the line if the mains rises to
a certain peak. As yet one has never blown any circuit breakers. Now that
could be because its totally useless, I have no way to know!

Brian

--

This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Michael Chare" wrote in message
...
Does anyone have any recommedations for Surge Protection Devices which are
suitable for use where they can't be fitted in a modern consumer unit?

How useful are SPDs where all the local wiring is under ground, but some
of the 11KV upstream of the local transformer is overhead?

I was surprised to discover that they are fitted in parallel with a
consumer rather before and in series.


--
Michael Chare

On 28/02/2021 18:40, alan_m wrote:
On 28/02/2021 17:27, Michael Chare wrote:
Does anyone have any recommedations for Surge Protection Devices which
are suitable for use where they can't be fitted in a modern consumer
unit?

How useful are SPDs where all the local wiring is under ground, but
some of the 11KV upstream of the local transformer is overhead?

I was surprised to discover that they are fitted in parallel with a
consumer rather before and in series.



It does seem strange, safety wise, that what looks like a big red
isolation switch may not actually isolate the consumer unit.

https://www.tlc-direct.co.uk/Technic..._Datasheet.pdf




Then don't label it up as the CU isolator.

--
Adam

On 01/03/2021 19:51, ARW wrote:
On 28/02/2021 18:40, alan_m wrote:
On 28/02/2021 17:27, Michael Chare wrote:
Does anyone have any recommedations for Surge Protection Devices
which are suitable for use where they can't be fitted in a modern
consumer unit?

How useful are SPDs where all the local wiring is under ground, but
some of the 11KV upstream of the local transformer is overhead?

I was surprised to discover that they are fitted in parallel with a
consumer rather before and in series.



It does seem strange, safety wise, that what looks like a big red
isolation switch may not actually isolate the consumer unit.

https://www.tlc-direct.co.uk/Technic..._Datasheet.pdf




Then don't label it up as the CU isolator.


Do you fit them?

--
Michael Chare

On 01/03/2021 21:28, Michael Chare wrote:
On 01/03/2021 19:51, ARW wrote:
On 28/02/2021 18:40, alan_m wrote:
On 28/02/2021 17:27, Michael Chare wrote:
Does anyone have any recommedations for Surge Protection Devices
which are suitable for use where they can't be fitted in a modern
consumer unit?

How useful are SPDs where all the local wiring is under ground, but
some of the 11KV upstream of the local transformer is overhead?

I was surprised to discover that they are fitted in parallel with a
consumer rather before and in series.



It does seem strange, safety wise, that what looks like a big red
isolation switch may not actually isolate the consumer unit.

https://www.tlc-direct.co.uk/Technic..._Datasheet.pdf




Then don't label it up as the CU isolator.


Do you fit them?


https://www.tlc-direct.co.uk/Technic..._Datasheet.pdf

Is one way

--
Adam