2. tech-talk
  3. 1236832030

Dedicated Lines - Sub panel or no?

Hi folks,

In a few months time I will be moving to a new home, where a spare bedroom and an understanding wife will enable me to enjoy the luxury of a dedicated listening room.

The first thing that comes to mind is installing 4 dedicated 20A lines. The breaker panel is on the ground floor, the room is on the 3rd.

I'm wondering which is better:

-to run all four lines from the breaker box all the way to the wall outlets,

-or install a sub-panel (is that the right term?) in the room, and use a single, very heavy guage line from the breaker box to the subpanel, then run 4 short lengths of 10 or 12 gauge from the subpanel to the outlets.

Thanks in advance for your advice

Kind Regards
Mick
128x128mickey_sg
zargon's avatar
zargon
453 posts
 
Mick,

Thanks, I spent a year and a half getting my system to this point and have a long list of things I still want to accomplish.

Please do get your installation specifics reviewed by a local licensed electrician, as codes do vary.

Also, AGON member "jea48" is an expert in this area, and was very helpful in advising me on my iso configuration. I hope he doesn't mind me mentioning that to you.
crna39's avatar
crna39
145 posts
 
We installed an Equi=tech wall panel next to our rooms. We then run 10 dedicated lines of JPS In-wall cable to each room and used Oyaide R-1 receptacles. From the Equi=tech, there are copper lines running to (2) 3/4" copper rods in the ground. We spent about $30k on our electrical system and it shows.
zargon's avatar
zargon
453 posts
 
No electrical system is worth $30K.

I put in a 4KVA iso, a 125va iso, a subpanel, and 6 dedicated lines, and 6 Porter Ports for under $1K.

Here is one link of very very many to supply houses with steep discounts on iso tranformers. It is best to find one local to avoid shipping these heavy beasts.

Surplus ISO Transformers

.
ngjockey
1,042 posts
 
No clue about electrical requirements in Singapore but check this out. Surge protection, regulation, isolation and breakers included.

http://cgi.ebay.com/Topaz-7-5-kVA-Power-Conditioner-Isolation-Transformer_W0QQitemZ330314111193QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item330314111193&_trksid=p3286.c0.m14&_trkparms=66%3A2%7C65%3A10%7C39%3A1%7C240%3A1318
hevac1
812 posts
 
Zargon
I tried what you are doing and the cost of electricity was so high it was cost prohibitive. My bill went from 350 to over 600. The transformer ran at 5 amps static with no load,
I tried relays for on off but the breaker tripped on startup at times so I did not go that way. My Av P300 alone draws 300 watts. Just wondering.
More to discover