"Les" wrote in message

1) Current range hood is on the "main" breaker, which is 70 amp

See info below #5


2) Tech support of microwave said it requires at least a 15 amp circuit;
it
is a 950 watt microwave.

Sounds about right. 15 a should easily handle that load. What else in on
the circuit though?


3) Currently have counter microwave which is plugged into socket
controlled
by "main" breaker. It also is 950 watt.

See #5


4) Only one person works in kitchen at a time, and microwave and range
below
would not be used at the same time.

Two of us work in the kitchen and we don't have a problem with that setup.
The OTR saves a lot of space.



5) The " main" breaker controls lots of stuff in house. (but not sure
exactly what!)

Again, my question is if you guys think I am wired OK now?

No. The main breaker, if it is truly the main, should control every breaker
in the box. There must be another breaker of 15 or 20 amps to control the
rest of the circuits. If the 70 amp breaker is truly controlling much of
the house with no sub panels or other fuses or breakers, you are living in a
very dangerous environment. Please, have a competant electrican look at it
and fix it. At least get someone knowledgable to confirm this if you can't
get an electrician right away.