Surge Protection Devices
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 |
Surge Protection Devices
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. |
Surge Protection Devices
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 |
Surge Protection Devices
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 |
Surge Protection Devices
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 |
Surge Protection Devices
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 |
Surge Protection Devices
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 |
Surge Protection Devices
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 |
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