Sparks, talk to me a out spd's
Discussion
I am looking into ways of spike and surge protecting my hi fi and computers. One problem I have is the surround sound system is active. Each speaker (5 of) is in a socket on it's own. Plus the CCTV and computers in their own sockets.
My thoughts therefore are towards a consumer unit surge / spike protection module which do exist but there is not much in the uk Market to google about. ( one sparks in Spain blogs about fitting them all the time )
Can you point me towards one in the uk? I have 4 spare slots in my consumer unit and would want an "invisible running" device which z
Doesn't need resetting every time a surge hits.
For some reason here we get around a power cut a week and the other night it was off on off on for about 5 mins and has upset one of the speakers
My thoughts therefore are towards a consumer unit surge / spike protection module which do exist but there is not much in the uk Market to google about. ( one sparks in Spain blogs about fitting them all the time )
Can you point me towards one in the uk? I have 4 spare slots in my consumer unit and would want an "invisible running" device which z
Doesn't need resetting every time a surge hits.
For some reason here we get around a power cut a week and the other night it was off on off on for about 5 mins and has upset one of the speakers
Thanks for the replies!
This seems to be what I need but I can't find anything about them. http://download.hager.com/hagergroup.com.sg/files_...
In spain, it is almost standard fit, so i'm told
This seems to be what I need but I can't find anything about them. http://download.hager.com/hagergroup.com.sg/files_...
In spain, it is almost standard fit, so i'm told
JABB said:
No, I'm in Oxfordshire.
The CU is not Hagar but are the devices multi fit?
Hit & miss with fitting diff manufacturers devices into consumer units - the bus-bar arrangement varies.The CU is not Hagar but are the devices multi fit?
The bar can be cut down but still might not fit.
I will look into the Hager items & report back as I'd like to get a solution for domestic installs.
Ok. Firstly, the range of items on the link you gave are not available in the UK.
You have two options for an SPN installation:
1. PME (standard DNO supply arrangement)
Item SPN140D wired via a 32A Type C MCB, with a connection to the main earth terminal.
Would suggest a minimum of 6mm² from the MCB with 10mm² to the earth terminal.
The number of ways used will be 2 (1 for the MCB & 1 for the SPD module - see below).
2. TT (overhead supply with earth rod connection)
Item SPN215D or SPN215R wired via a 32A Type C MCB, with a connection to the neutral bar & main earth terminal.
Would suggest a minimum of 6mm² from the MCB/to the neutral bar with 10mm² to the earth terminal.
The number of ways used will be 3 (1 for the MCB & 2 for the SPD module - see below).
It's probably not possible to establish whether the Hager devices with integrate directly into the consumer unit before you buy them, so as a backup, you should plan for a remote enclosure with a DIN rail. If this is the case, I would up all of the wiring sizes to 10mm² & the live conductors will need to be double insulated.
Can you post a pic of your consumer unit & surrounding stuff (meter etc).
I did something similar with some modular devices mounted on a din-rail in an enclosure at my intake point to provide isolation to the consumer unit (recessed into the wall on the other side of the DNO supply) & to split the mains to provide a supply to the garage via an RCD & MCB. I intend to add the arrangement as item 1 above to mine.
PM me if you want to have a chat about it.
You have two options for an SPN installation:
1. PME (standard DNO supply arrangement)
Item SPN140D wired via a 32A Type C MCB, with a connection to the main earth terminal.
Would suggest a minimum of 6mm² from the MCB with 10mm² to the earth terminal.
The number of ways used will be 2 (1 for the MCB & 1 for the SPD module - see below).
2. TT (overhead supply with earth rod connection)
Item SPN215D or SPN215R wired via a 32A Type C MCB, with a connection to the neutral bar & main earth terminal.
Would suggest a minimum of 6mm² from the MCB/to the neutral bar with 10mm² to the earth terminal.
The number of ways used will be 3 (1 for the MCB & 2 for the SPD module - see below).
It's probably not possible to establish whether the Hager devices with integrate directly into the consumer unit before you buy them, so as a backup, you should plan for a remote enclosure with a DIN rail. If this is the case, I would up all of the wiring sizes to 10mm² & the live conductors will need to be double insulated.
Can you post a pic of your consumer unit & surrounding stuff (meter etc).
I did something similar with some modular devices mounted on a din-rail in an enclosure at my intake point to provide isolation to the consumer unit (recessed into the wall on the other side of the DNO supply) & to split the mains to provide a supply to the garage via an RCD & MCB. I intend to add the arrangement as item 1 above to mine.
PM me if you want to have a chat about it.
Smiler. said:
Ok. Firstly, the range of items on the link you gave are not available in the UK.
You have two options for an SPN installation:
1. PME (standard DNO supply arrangement)
Item SPN140D wired via a 32A Type C MCB, with a connection to the main earth terminal.
Would suggest a minimum of 6mm² from the MCB with 10mm² to the earth terminal.
The number of ways used will be 2 (1 for the MCB & 1 for the SPD module - see below).
2. TT (overhead supply with earth rod connection)
Item SPN215D or SPN215R wired via a 32A Type C MCB, with a connection to the neutral bar & main earth terminal.
Would suggest a minimum of 6mm² from the MCB/to the neutral bar with 10mm² to the earth terminal.
The number of ways used will be 3 (1 for the MCB & 2 for the SPD module - see below).
It's probably not possible to establish whether the Hager devices with integrate directly into the consumer unit before you buy them, so as a backup, you should plan for a remote enclosure with a DIN rail. If this is the case, I would up all of the wiring sizes to 10mm² & the live conductors will need to be double insulated.
Can you post a pic of your consumer unit & surrounding stuff (meter etc).
I did something similar with some modular devices mounted on a din-rail in an enclosure at my intake point to provide isolation to the consumer unit (recessed into the wall on the other side of the DNO supply) & to split the mains to provide a supply to the garage via an RCD & MCB. I intend to add the arrangement as item 1 above to mine.
PM me if you want to have a chat about it.
Thanks for taking the mantle as it were. Good to talk, and it will be good to hear how you get on. You have two options for an SPN installation:
1. PME (standard DNO supply arrangement)
Item SPN140D wired via a 32A Type C MCB, with a connection to the main earth terminal.
Would suggest a minimum of 6mm² from the MCB with 10mm² to the earth terminal.
The number of ways used will be 2 (1 for the MCB & 1 for the SPD module - see below).
2. TT (overhead supply with earth rod connection)
Item SPN215D or SPN215R wired via a 32A Type C MCB, with a connection to the neutral bar & main earth terminal.
Would suggest a minimum of 6mm² from the MCB/to the neutral bar with 10mm² to the earth terminal.
The number of ways used will be 3 (1 for the MCB & 2 for the SPD module - see below).
It's probably not possible to establish whether the Hager devices with integrate directly into the consumer unit before you buy them, so as a backup, you should plan for a remote enclosure with a DIN rail. If this is the case, I would up all of the wiring sizes to 10mm² & the live conductors will need to be double insulated.
Can you post a pic of your consumer unit & surrounding stuff (meter etc).
I did something similar with some modular devices mounted on a din-rail in an enclosure at my intake point to provide isolation to the consumer unit (recessed into the wall on the other side of the DNO supply) & to split the mains to provide a supply to the garage via an RCD & MCB. I intend to add the arrangement as item 1 above to mine.
PM me if you want to have a chat about it.
I will send details of what I have near the meter and we will talk again.
![](http://thumbsnap.com/sc/TM86WqRo.jpg[/img]</a> <a href="http://thumbsnap.com/LPn83Kv3" Target="_blank">[img]http://thumbsnap.com/sc/LPn83Kv3.jpg)
No idea with the individual speaker bits, but can the PC just be connected to a protected extension lead ?
http://www.argos.co.uk/static/Product/partNumber/9...
http://www.argos.co.uk/static/Product/partNumber/9...
No room in the external enclosure.
As for the consumer unit, looking at the photo below:
1. The yellow is what the bus-bar should look like (or possibly at the top).
2. As a split board, there should be 2 separate bars (I have shown a notional split point).
3. the red box is where the 32A Type C MCB needs to go.
4. The blue box is the SPD.
5. The green circle shows where the bus-bar will most likely need cutting back.
Can you post a pic with the cover off?
As for the consumer unit, looking at the photo below:
1. The yellow is what the bus-bar should look like (or possibly at the top).
2. As a split board, there should be 2 separate bars (I have shown a notional split point).
3. the red box is where the 32A Type C MCB needs to go.
4. The blue box is the SPD.
5. The green circle shows where the bus-bar will most likely need cutting back.
Can you post a pic with the cover off?
Here you go Smiler.
I have one spare link on the left and 3 on the right. The one marked L is the whole of the lounge, the area I want to protect.
The top multi connectors are Left, N for the left block of MCBs. Middle N for the Right MCBs. The right obviously Earth.
I have plenty of room to mount a second enclosure next to this and have knockouts to allow the cable to come out of the side.
I could take a feed to a second box. SPD this and feed the Lounge from the second box?
OK. This is what I would do:
1. Add a 2-module enclosure for the MCB & SPD (Hager do some but they are a bit naff, so I'd do a little on-line research unless you're not too bothered).
2. Hager recommend a 25A Type C MCB for the UK (RED rectangle).
3. SPN140D (BLUE rectangle).
4. 4mm² from the Main Disconnector output (LIVE) to the MCB input (RED line).
5. 4mm² from the MCB output to the SPN140D input(RED line).
6. 16mm² from the SPN140D output to the consumer unit earth bar (GREEN line). If there isn't a spare terminal of sufficient size, then 1 x 10mm² or 2 x 6mm².
The actual terminal positions on the SPN140D might be different to that shown.
Oh, and I'd clean the consumer unit of debris whilst the power is off
1. Add a 2-module enclosure for the MCB & SPD (Hager do some but they are a bit naff, so I'd do a little on-line research unless you're not too bothered).
2. Hager recommend a 25A Type C MCB for the UK (RED rectangle).
3. SPN140D (BLUE rectangle).
4. 4mm² from the Main Disconnector output (LIVE) to the MCB input (RED line).
5. 4mm² from the MCB output to the SPN140D input(RED line).
6. 16mm² from the SPN140D output to the consumer unit earth bar (GREEN line). If there isn't a spare terminal of sufficient size, then 1 x 10mm² or 2 x 6mm².
The actual terminal positions on the SPN140D might be different to that shown.
Oh, and I'd clean the consumer unit of debris whilst the power is off
Is the unit trimmed above the mem/eaton "hob" mcb to allow it to fit? I'd have it replaced with a GE part and return it, anally, to the guy who installed it.
Would these on each item you're worried about address the issue in a more simple fashion? http://www.choiceful.com/choiceful-id-8458-AntiSur...
Would these on each item you're worried about address the issue in a more simple fashion? http://www.choiceful.com/choiceful-id-8458-AntiSur...
Thanks Smiler. That all makes sense. I will clean it out! I had no idea there was that much plaster in there. The main work was done in 2003, but a qualified electrician, but without planning permission. The 2 oddments were added when we took over with planning and used a different electrician. I know they look odd, but you can't see them everyday.
Have you found anything out about prices for the SPD yet? Do you want me to do some digging, or have you made contact with someone in the know?
Have you found anything out about prices for the SPD yet? Do you want me to do some digging, or have you made contact with someone in the know?
James,
The feed into the MCB need only be 4mm² if located very close to the point of connection to the main phase conductor.
The idea of a larger connection to the earth terminal is low impedance to earth.
In my installation, the phase connection is made from a terminal block which sits between the meter output & the consumer unit (also providing a connection to the garage consumer unit), so I have used 16mm². You will not be able to take an additional cable of this size from a the incoming terminal standard consumer unit 2-pole switch-disconnector due to capacity.
The link I sent you is 16mm², you could use 4mm² but I chucked one in anyway.
Also, you might find that enclosure I sent a bit confined for the wiring.
Give me a call tomorrow if you have any further questions.
The feed into the MCB need only be 4mm² if located very close to the point of connection to the main phase conductor.
The idea of a larger connection to the earth terminal is low impedance to earth.
In my installation, the phase connection is made from a terminal block which sits between the meter output & the consumer unit (also providing a connection to the garage consumer unit), so I have used 16mm². You will not be able to take an additional cable of this size from a the incoming terminal standard consumer unit 2-pole switch-disconnector due to capacity.
The link I sent you is 16mm², you could use 4mm² but I chucked one in anyway.
Also, you might find that enclosure I sent a bit confined for the wiring.
Give me a call tomorrow if you have any further questions.
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