Quote:
The principal doubt I have is: if I mustn't consider Ax,Ay,Az as occasional and also displacements and wind aren't to consider occasional, because they come from or are contemporary with acceleration, is more right to consider W+P1+D1+U1+0.5U2+U3+WINx as SUS condition or in anycase I've to consider it as OCC condition?

I guess your concern should be "fatigue".
Counting just constant occasional or "non-occasional" accelerations it’s a good chance that your FRSU would go faster and faster... and quickly to a disaster.
This difference between pseudo-kinematics and fatigue (the last being in the end-chapters of some books...) would be a good lesson learnt for your Client.

Best regards,