Going to have a dedicated line installed- What should i know to ask for?


Im going to have my electrician install a dedicated line or two.
He is a very experienced professional electrician, but not necessarily very familiar with the Audiophile world.

What should i know to ask in advance so i can save money later?

As a note- My main draw is a pair of Joule-Electra VZN-100 OTL's that draw about 800w together.
Rest of m system is pretty Avarage:
Merlin BAM(Fixed eq box for Merlin speakers)
Tube pre
DAC
CD Player
Miscellaneous low power devices.

Thanks!
128x128dumbeat
Here in US, each state may have a slightly different code requirements for the electrical work and a certified electrician will and should not deviate from the code, no matter what you ask him to do, of course aside from tightening obvious loose connections. In my state, the only options I had were the choice of the 15 or 20 amp - I picked 20, and the gauge of the (Romex) wire; 10 or 12, and I picked the thicker gauge even though the electrician was adamant that it will make no difference in the sound quality. I also suggest buying some good quality outlets with good tight connections for the power cord. 
A 15 amp circuit is 1800 watts and a 20 amp circuit is 2400 watts. A 15 amp circuit is sufficient!
The electrician hopefully is a fairly smart guy or gal so I would begin by showing them what you want to connect to the receptacles they should be able to tell you what you need. Most likely a 15 amp circuit will be enough but if you want a 20amp ask for the price difference. The next thing I would ask for hosptial grade receptacles as they will grip a lot better than residential grade. They might be restricted by code and panel box manufacturer as to the type of breaker but get the best available.
All is useless to do inside the house if the connections to the house barge board and to the street power pole is old and hasn’t been cleaned and tightened in decades.
https://checkthishouse.com/wp-content/uploads/electrical-service-connection-at-the-house-wall-is-too...
These connections can be under ground if a newer (20yold) development area.
 https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSku4mCRiijbZCgGQkLvqpet38UA9-8t-zZEFuaGMTTApbU... 

Cheers George