Dedicated Mains installed

Posted by: RikkieB on 13 September 2016

Hi Guys,

Just wanted to share my experience with installing a dedicated mains for my HiFi set :-) It consists out of Furutech wall socket (FP-SWS-G),  Pink Faun Power Cable 3x 5,3 mm2 and Siemens Sitor Fuse with 10x38 gold fuse from HiFi-tuning. It took not that much trouble to install it, as my Fuse box is just on the other side of the wall of my living. The only big challenge was to drill a hole in my 40 cm thick wall, but all went well. The Pink Faun cable is a tough cable to handle, but I tamed it ;-)

I have one wall socket which is connected to the standard Naim mains block, mains cables of my 272 and 250DR are the standard ones for the time being. Maybe upgrade sometime to powerlines and better mains block. Mains block also hold the my AV receiver, blu-ray player and Turn table (Project). Finally a real dedicated mains. The 'old' one had also some lights connected, plus my electrical roller blinds.

I am happy with the result, nice musical upgrade I must confess. It sounds just more lively and more surround sound. I wonder if it will improve during the coming weeks! Enclosed are some pictures. Enjoy!

 

Posted on: 13 September 2016 by hungryhalibut

You may like to think about a second cable, then the 272 and 250 can connect directly to the wall. You'd be well advised to remove all non Naim stuff from the block. Finally, get a separate consumer unit just for the hifi, which will lift the performance further. 

Those wires look really thin; we use 10mm2 steel wall armour cable, which really is a challenge. 

Posted on: 13 September 2016 by Moussa

Congrats, I am also looking into installing adedicated line as well. 

Posted on: 13 September 2016 by Adam Zielinski

I echo HH - get a second socked right away and at least plug the rest of the non-Naim components into that one.

Also do remember that Naim gear does not like any distribution blocks with filters, surge protection stuff etc etc.

Posted on: 13 September 2016 by fatcat

Nice installation, looks very professional.

Posted on: 13 September 2016 by Simon-in-Suffolk

Glad you are enjoying it

S

Posted on: 13 September 2016 by AussieSteve

Great Effort, enjoy!

Posted on: 13 September 2016 by joerand

Rikkieb,

Nice pics and congrats. Was there a particular reason you chose round, stranded cable versus a flat, solid wire configuration?

Posted on: 13 September 2016 by MadScientist

Great, but you've got nothing on this guy

Dedicated mains

Posted on: 14 September 2016 by RikkieB
Hungryhalibut posted:

You may like to think about a second cable, then the 272 and 250 can connect directly to the wall. You'd be well advised to remove all non Naim stuff from the block. Finally, get a separate consumer unit just for the hifi, which will lift the performance further. 

Those wires look really thin; we use 10mm2 steel wall armour cable, which really is a challenge. 

Thx for the tips HH. Going for a second socket today for the rest of the gear, so Naim gear has it's own network. The current socket for Naim is the same quality als the standard powerlines.

To me 10mm2 is huge. Is that the cable entering the house?

Posted on: 14 September 2016 by RikkieB
joerand posted:

Rikkieb,

Nice pics and congrats. Was there a particular reason you chose round, stranded cable versus a flat, solid wire configuration?

No, not really. This cable was adviced by a friend, he does not own Naim, but 2 big mono-blocks of Passlabs. 

Posted on: 14 September 2016 by RikkieB
Adam Zielinski posted:

I echo HH - get a second socked right away and at least plug the rest of the non-Naim components into that one.

Also do remember that Naim gear does not like any distribution blocks with filters, surge protection stuff etc etc.

Will take your advice in account. Thx!

Posted on: 14 September 2016 by hungryhalibut

Rikkie, you asked about the 10mm cable. This the the optimum size for dedicated mains, and was recommended to me by Naim. We use Steel Wall Armoured because it runs around the outside of the house, buried under the flowerbeds. I've put a picture below to help you. It shows the separate small consumer unit just for the stereo, which is the best way to go if you are able. Doing this is a job for a professional electrician, because you need to split the cable from the meter to the existing consumer unit, and cutting live mains is not a job for an amateur!

Posted on: 14 September 2016 by kota

What's the diameter of each of the 3 individual conductors inside this 10mm cable?

Thanks

 

 

Posted on: 14 September 2016 by hungryhalibut

Each conductor is 10mm2 in cross sectional area, so the diameter would be about 3.6mm. 

Posted on: 14 September 2016 by RikkieB
Hungryhalibut posted:

Rikkie, you asked about the 10mm cable. This the the optimum size for dedicated mains, and was recommended to me by Naim. We use Steel Wall Armoured because it runs around the outside of the house, buried under the flowerbeds. I've put a picture below to help you. It shows the separate small consumer unit just for the stereo, which is the best way to go if you are able. Doing this is a job for a professional electrician, because you need to split the cable from the meter to the existing consumer unit, and cutting live mains is not a job for an amateur!

Hi HH,

Ah! Now I understand, but what diameter is coming out of this dedicated automatic Fuse box? I found a nice table stating the Amps allowed through a certain diameter of cable:

  • 1,5mm² --> 16A 
  • 2,5mm² --> 20A 
  • 4mm²    --> 25A 
  • 6mm²    --> 32A 
  • 10mm²  --> 40A (Your incoming cable)

This holds for automatic fuses. In my case I have an old fashioned Fuse for HiFi, so 2,5 mm2 is sufficient as the fuse is 16A. You need to lower the Amps with 1 section when using the normal fuses. 

Nice installation by the way!

Regards,

Rik

Posted on: 14 September 2016 by hungryhalibut

The cable to the stereo is the fat one coming out of the top. This is the 10mm2 cable. We have a 50 amp circuit breaker. 

Posted on: 14 September 2016 by RikkieB
Hungryhalibut posted:

Each conductor is 10mm2 in cross sectional area, so the diameter would be about 3.6mm. 

My cable from fusebox to wall socket is 5,3 mm2 per wire and total diameter is 9,5 mm. It is shielded and Teflon isolated.

Posted on: 14 September 2016 by Huge
Hungryhalibut posted:

... and cutting live mains is not a job for an amateur!

 

Oh I don't know, I know someone who's done it three times in a very amateurish manner - once with a lawnmower, and twice with a hedge trimmer.    

Posted on: 14 September 2016 by hungryhalibut

Yikes!

Posted on: 14 September 2016 by Huge

They're not the only things...

His partner came home one day to see the tumble drier exiting the back door trailing smoke, rapidly followed by Pete.

In 10 years he's written off 7 tumble driers and 4 vacuum cleaners and in just 2 1/2 years of driving he's already written off 2 cars.

Posted on: 14 September 2016 by hungryhalibut

I thought you were talking about yourself!

Posted on: 14 September 2016 by Huge

THANKS a bunch!    

Posted on: 14 September 2016 by RikkieB

Where is this leading to? 

Posted on: 14 September 2016 by Adam Zielinski
Hungryhalibut posted:

I thought you were talking about yourself!

So did I

Posted on: 14 September 2016 by Adam Zielinski
Huge posted:

They're not the only things...

His partner came home one day to see the tumble drier exiting the back door trailing smoke, rapidly followed by Pete.

In 10 years he's written off 7 tumble driers and 4 vacuum cleaners and in just 2 1/2 years of driving he's already written off 2 cars.

I hope he doesn't have a Naim