This European Standard is to be used together with EN 13001 1 and EN 13001 2 and as such they specify general conditions, requirements and methods to prevent mechanical hazards of wheel/rail contacts of cranes by design and theoretical verification. This European Standard covers requirements for steel and cast iron wheels and is applicable for metallic wheel/rail contacts only.Roller bearings are not in the scope of this European Standard.Exceeding the limits of strength is a significant hazardous situation and hazardous event that could result in risks to persons during normal use and foreseeable misuse. Clause 5 to Clause 6 of this European Standard are necessary to reduce or eliminate the risks associated with this hazard.This European Standard is applicable to cranes, which are manufactured after the date of approval of this European Standard by CEN, and serves as a reference base for product standards of particular crane types.This European Standard is for design purposes only and should not be seen as a guarantee of actual performance.EN 13001-3-3 deals only with limit state method in accordance with EN 13001-1.