There is not quite the same thing as "reverse polarity" as you can have:
- L-L swap leading to wrong rotation. This is not obvious without specific test (closer to SP reversal) but will likely trouble machines using 3P motors as fan direction reversed, etc, or
- N-L swap and then almost certainly see SP loads on the two other L-(L instead of N) voltages burning out!
The first could go undetected if you only have SP loads, but the 2nd is likely to be found out pretty quickly so not likely to be discovered on EICR, etc!