Got an electric cooker?

Posted by: J.N. on 20 September 2006

Try turning it off.

Even with a separate spur for the system, my new electric cooker appears to have a deleterious effect on sound quality.

The system sounds better if I switch off the cooker (at its wall switch). This was witnessed by others BTW.

Absolute bloody madness, but there ya go.

John.
Posted on: 20 September 2006 by rackkit
J.N. will now be having sandwiches for tea until further notice..
Posted on: 20 September 2006 by mtuttleb
J.N.

Like someone mentioned a few weeks ago. Mains has a big effect and there is simply nothing to be done about it. Or is there ?

Not mentioning any names, I've tried a few conditioners and in the end, when the system sings it sings. When it doesn't I go and do something else. This was without the conditioners of course.

If you are in a position to install a dedicated earth for the HiFi then I hear (at least from Dick Egypts posts) that this brings back a consistent performance from Naim kit, more so that a separate spur, with no ups and downs. I can't really do this where I am.

Look's like take aways from now on

Regards,
Mark
Posted on: 20 September 2006 by Analogue
quote:
Originally posted by J.N.:
Try turning it off.

Even with a separate spur for the system, my new electric cooker appears to have a deleterious effect on sound quality.

The system sounds better if I switch off the cooker (at its wall switch). This was witnessed by others BTW.

Absolute bloody madness, but there ya go.

John.


John,
Is your spur coming from the house hold CU? if so the cooker is putting a lot of crap back into the mains. 1 way round this is for your hi-fi to have its own dedicated CU, this should alleviate the problem.
Hope this helps
Chris N
Posted on: 20 September 2006 by J.N.
Chris;

Thanks for that. Yes, the Hi-Fi spur does come off the one and only CU (with old fashioned wire fuses!)

If my PC is plugged in (to the ring-main upstairs); that really screws up the sound of the system, so perhaps a system dedicated CU might help with this problem too?

Anyone based around Norwich with the wherewithal to assist me?

If so, my e-mail address is in my forum profile.

John.
Posted on: 20 September 2006 by joesilva
John,

Sounds to me like you may be living in a house where the original electrical requirements were put in many years ago. As such, it may not have the the amperage of newer homes. Maybe what you need is a qualified electrician to give you some advice and quotation for upgrading the capacity overall. It may not just be a matter of noise from your cooker, but also a drain on your current beyond what it was originally intended to supply.

Joe
Posted on: 21 September 2006 by BigH47
I'll ask again has any one know of anyone running their homes indepedantly of the NGrid? Wind /water power,small nuclear power station(more likely hydrogem powercell) etc or even a generator I guess.
Posted on: 25 September 2006 by Martin Payne
quote:
Originally posted by joesilva:
Sounds to me like you may be living in a house where the original electrical requirements were put in many years ago. As such, it may not have the the amperage of newer homes. ... It may not just be a matter of noise from your cooker, but also a drain on your current beyond what it was originally intended to supply.



Joe,

just to clarify, this is with the cooker turned on at the wall, but not actually heating anything at the time.

The only thing drawing current is the little timer clock!

The system was noticeably better with the cooker turned off at the wall.

I would hazard a guess that John's house circuit isn't overloaded by hundreds of gizmos or appliances.


One thing that did occur to me - when the heating elements switch on or off, there are very considerable currents flowing. Is there a bloody big capacitor in there to avoid putting switching transients into the mains? Perhaps this is what's affecting the system? (Sort of a Lingo affect, but with a 50x bigger capacitor involved??)

cheers, Martin
Posted on: 25 September 2006 by JWM
JN - was the cooker on or off when we listened on Saturday?
Regards,
James
Posted on: 26 September 2006 by J.N.
James;

Off.

John.