On 12/25/2015 12:34 PM, trader_4 wrote:

But how common is it for there to be no "main switch," as is the case
with this installation: feed directly from the meter to the bus bars
with no switch or main breaker to enable safer working in the panel?

Not common at all. It's a code violation, unless there are only 6
breakers in that panel, in which case they can serve as the disconnect.
Are you sure there was no disconnect near the meter?

There were 10 or 12 breakers. I saw no sign of any other breaker. And
there was only one combined ground/neutral bar in the panel -- white and
bare wires to the same bar -- so it couldn't count as a sub-panel.

Is it possible that it was OK when the house was wired originally --
long ago -- (or rewired on an earlier occasion) and the only rewiring
that was done in 2011 was from the panel on -- retaining the original panel?

Perce