On Friday, February 7, 2014 4:08:10 PM UTC-5, wrote:






If they are adding outlets, etc, which



is certainly typical of many kitchen renovation, particularly in



that age houe, I agree there are a whole lot of issues beyond



the question asked.







No outlets are being added. You couldn't add them if you wanted to--all of the electrical is buried in concrete (the house is solid reinforced concrete) . The new kitchen is merely taking the place of the old kitchen. Same footprint.

It's still unclear what exactly that means, but if the wiring in
question isn't being modified, added onto, etc, then the answer to your question is probably to verify that the conduit is grounded back at the panel,
in which case it can serve as the grounding conductor.

As others have pointed out or assumed, etc, it's a bit unusual for
a kitchen renovation of a house from the 40's to not include electrical
work, eg more outlets, GFCI, lights, more circuits, 20 amp vs 15,
wiring for appliances, etc., even if it's just the same footprint,
which it typically is. And if you get into that, then you clearly
have to bring the kitchen electrical up to code. And even if you're
ripping out some of the wiring and re-doing it, ie still trying to
have the same outlets on the same circuits when you;re done, you
can't do that either. It has to be brought up to code.

Even if that conduit is buried in the concrete, if it was installed
correctly there should be endpoints, access points, etc
where it's possible to pull new conductors. Something to keep
in mind perhaps.