mains spur or separate power supply?

hello there

i'm doing some work on the house before moving in, including fitting a ground source heat pump.
this has a compressor that runs 24/7 and requires isolation.
i should also like to electrically isolate my hifi, preferably into two power supplies, one for power amps and one for everything else.
so i think i need 4 spurs/power supplies;
1 heat pump and kitchen
2 house including tv computer
3 hifi
4 power amps

what i want to acheive is separation from each other and .conditioned/consistent mains quality.
i live in a sparsley populated area, but there is a lot of logging and some sawmills locally.

obviously the "dirty" heat pump/kitchen spur doesn't need to be conditioned

so should i be looking at mains spurs or power supplies?
i understand there is a big cost difference, with running separate spurs the cheaper

and what the bloody hell am i talking about?

help
i apologise to the educated for my shocking misuse of terms....

many thanks love gav

 

Don't forget a spur for the lights.

 

contact

[email protected]

he posts on pf mainly ...but I'm certain he can help ...he has writen a number of excellent documents on the subject of mains.

 

I think you will definetly need some filtering if you want to isolate the supplies. A seperate spur, as far as I can see, will stop an overload on one blowing the fuse of the other, but it won't stop noise going from one to the other (unless the fues blows!). I'm not sure how an isolation transformer would affect that, but some strong LC filtering would help.