I very much doubt that any CAD package will simulate compliance with IP codes. You could conduct tolerance analysis to check for clearances. In my experience a prototype is the best way to check compliance. What IP do you need to achieve?
Hi Craig, thanks for your thoughts.
The problem in question is a hi-tech and complex cabinet that is going to be stationed in a submarine. The requirement is IP45. So far I have not managed to even find a referance to ingress protection in neither knowledgebase or help so I share your doubt