Ted,
The routing of the 240 volt wiring is a discussion between you and the
electrician - but there is always "a way" - even if that means drilling
through concrete (not nice, but possible).
Unless the wiring route is short, take Jim Beown's (K9YC) advice about
conductor sizes. Large conductors are not required for the current
draw, but oversize wire will help reduce the voltage drop when current
is drawn.
Putting all shack receptacles on a dedicated circuit for both 240 volts
and 120 volts AC will help a lot with received noise in your receiver,
and will isolate your shack powering from other circuits in the house.
K9YC gives good advice on this subject, even though your electrician may
consider it overkill for Jim's recommended wire size.
73,
Don W3FPR
On 4/28/2018 2:08 PM, Dauer, Edward wrote:
Placing both PS and amp where the 220 VAC outlet is accessible is possible; but
then I wouldn't be able to see the amp while operating, which I would like to
do. Wouldn't feel comfortable with a 1500 watt amp running way out of sight.
It would also then be in the kitchen on a floor above. Not aesthetically the
best that way, either.
As I described in reply to one other suggestion:
The "shack" is a spare bedroom in the lowest (of three) level of the house,
which because it is built into a hillside and therefore half of it is below grade, has 12
inch concrete walls and a six inch (as I remember it) concrete floor covered only with a
carpet and carpet pad. The ceiling of that room is finished as is the entire interior.
The problem with snaking a line through the walls from the distribution box which is on a
deck above ground level is that the entire space between the inside side of the concrete
and the drywall is filled with cellular foam insulation. It was, when we had it built,
the recommended way to go for the mountain climate. I did think to have a conduit put
through the wall to allow antenna feedline coax to go through; but the electrician who
was there said there is now no way to get a 220 line through the walls without major
destruction. I might bring it overhead (between the finished ceiling of the lower level
and the floor of the next lev
el up) but then to get it down to a usable level in the "shack" would require a
conduit running down the inside wall surface. That may be what I will have to do . . .
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