According to Calvin Henry-Cotnam :
Chris Lewis ) said...

Odd.

I thought the CEC and Knight are pretty explicit about _requiring_ that
every box must be completely deenergizable by one disconnect (other than the
main of course ;-) There were some ways you could get around this, eg:

- metal barriers between the sections
- locking the boxes or area so they're not accessible by
"unauthorized persons".

Well, the code changes to the CEC 1994 explicitly allow two circiuts
on opposite poles that share a neutral to be powered by separate single
pole breakers. In other words, it would be possible to deenergize only
part of some boxes down the line.

"share a neutral". What if they don't?

Or if they're on the same outlet (multiwire branch).
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.