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Speedy Jim

wrote:

3 prong outlets where the owner tied the neutral to the ground pin. a
friend i spewnt the day with reported a family member just sold a home
like that

I donmt believe the common testers would catch such a miss wiring.

worse its plain unsafe....

incidently the home inspector who did this home didnt catch it

It's very difficult to catch.

I built a special tester which applies a *heavy* load
and measures the voltage drop to Ground and Neutral.

Even so, that kind of testing consumes a great deal of time
and the inspector has to weigh where to put emphasis.
Jim