Degrees of protection provided byenclosures (IP Code) (IEC 60529:1989(EQV))
This standard applies to the classification of degrees of protection provided by enclosures forelectrical equipment with a rated voltage not exceeding 72,5 kV.
EN 60529:1991&A1:2000&A2:2013/AC&AC:2016-12&AC:2019
https://shop.standards.ie/en-ie/standards/i-s-en-60529-1991-a1-2000-a2-2013-ac-ac-2016-12-ac-2019-872460_saig_nsai_nsai_2799814/