what is surge testing
hi
u can place a mov across the line- neutral, and neutral -earth ( do not connect between line to earth) and if proper clearance is given between the routing on the pcb the surge test will pass. and even i can suggest like the differential chokes at input will help(some may disagree) as of my practical experience.....
for eft try have a good earth connection for u the unit and u can also try by inc the value common mode choke . it may help u
bye
som