No, completely get it. I am just pointing out a potential overkill scenario, not to mention the fun it is working with that thickness.
Thatās dead right but 10mm cable is small really itās a matter of what you are used to.
Itās an interesting debate though. It does sound over the top but probably cheaper than a good Naim power supply
1 Like
Sure but unless you live in a mansion with a CU located in the west wing (and your hi-fiās east) then Iād imagine length doesnāt come into it either.
Radials make it even worse. The poor electrician (or in this case, you 
).
Iām sure itāll sound great though so best of luck with the installation.
1 Like
Not completely sure yet. Always a worry with these things you do a lot of work and canāt hear the difference. There is no easy route from the dist board to the music room but if I am gonna do it I might as well make it 3x10mm if that makes sense. That also means I avoid the 6 way block.
1 Like
No doubt there.
Just for fun, here is Romex in-wall wiring used for my dedicated room. It is already quite thick and heavyā¦
Iām sure itāll be great, given the number of positive experiences on here. Like you say, itās far cheaper than a Naim PSU (a Hi Cap is about Ā£1.5k nowadays) so not a huge loss if itās not what you expected and will be a nice lockdown project.
My only concern would be ensuring enough length behind each faceplate for reterminating in future as itās so stiff. I see youāre going for a 40mm backbox but might be worth leaving more slack if routing in a stud wall. Apologies if this has already been mentioned up thread.
1 Like
No thatās a good point. The cables will be coming from under the floor so I will leave slack as you rightly suggest.
Think all agree there should be a noticeable difference.
Why did you use Romex rather than standard 10mm ??
NM (non-metallic) Romex is pretty typical with new construction builds in the states. There are other brands, but Romex is a standard. Itās very good, too.
Mike ā you donāt have to have 3 radials. Choose as many as you need. I originally posted a couple of diagrams (One of which is reposted in this thread) based on the recommendations from Naim and others that had done this. Iād drawn up one to give to Electricians who came to quote for my (UK based) installation to make it easier to explain what I wanted. Regulations change and get updated and so your Electrician will install your installation based on the latest regulations, size the circuit protection appropriately and then will sign off the installation.
As my installation was done to 17th edition regs, I updated the original diagram to reflect initial changes in the 18th and just showed additional radials connected. For my own installation, I just went for a single radial to double socket as thatās all I need. If I did need more in the future then Iād just use something like a Grahams Hydra. Others prefer multiple radials.
10mm2 T&E into a 13A socketā¦As others mention, itās tight and you canāt just attach the wires and push everything back in and hope for the best. The wires need ādressingā into the back box to align them with the terminals before securing the terminal screws so that minimal stress is placed on the socket. My Electrician had no issues and didnāt see this as problematic.
Hope that helps ā there are lots of threads on here on dedicated mains so itās worth doing a search.
Yes thatās v helpful. I may go for 4 radials but only wire up 3.
The diagram complys with the IEE 18th edition. Although would not want non qualified fiddling this Henley Blocks.
Since the Music room has to have the floor taken up itās worth at least running the cables.
Thanks for all your help.
Sounds like a plan. Iāll be interested in how you get on.
A question please whilst we are on this topic.
Whatās the shortest length that people recommend for a DIY mains-cable? Like most people space is tight behind most racks and DIY cables are pretty easy / cheap to build.
Would 400mm (16") suffice or is that too short?
I canāt see why youād not make it as short as you need?
Clearly its difficult to fit a plug one end and an IEC the other if the cable were say 100mm.
I make all my own, using quality screened mains cable. And of course only earthing the screening at the plug end.
1 Like
Nothing is ātooā short. There are some who say the PowerLineās are made to a length to sound best, but Iāve not read anything on the Naim www that says that. Whatever Iām an electrical engineer so will probably take some convincing anyway.
I have made all mine to the required length, exception is x2 Powerline Liteās & I have folded them to tidy up the surplus (to protect the resale value - if & when).
1 Like
Thanks both, I did think that would be the case but wondered if there was some NAIM-science that meant they were supposed to be a minimum length.
Iāve built a few of my own using MK Toughplugs and screened cable which are earthed at the plug-end only. Iāve got a few IEC connectors left over so will look to build some shorter lengths as Iāve just moved my rack and donāt have as much space to hide excess cables.
ā¦ and thats the correct way. The screen should not be an integral part of the earth circuit, it should be used like a grounded/earthed conduit.
I had MK Toughplugs at one time, but have since changed to BG Permaplug because the screened cable size & with a screwed cable clamp it fits into them better.
Wall plug is Furutech with the L-shape body
1 Like
Agreed - the MKās are a night-mare to wire up as the entry is so narrow when using 12mm cable.
Assume you mean āIECā as already mentioned swapping to BG Permaplugs ?
I did mean the 13A plug, the Furutech FI-1363 L-shaped body is in the wall power socket, its wired with Lapp Olflex CY 100 & connects to an 8 way power board with MK double sockets
The BG Permaplugs go into the power board & feed the amp etc.
1 Like
Wow, āa real live force fieldā I wonder if the āKlingonsā have the technology to counter this ?
1 Like