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BOS ISO 4301-3:2021 (IDT)
P376.20
Cranes — Classification — Part 3: Tower cranes
Description
This document provides the classification of tower cranes for construction work as defined in ISO 4306-3, and gives specific requirements for steel supporting structure, mechanisms, ropes and further components basing on standard service conditions, mainly expressed by the following: — the number of working cycles;
— the load spectrum factor;
— the average displacements; and
— additional values for factors to be used at the structural or mechanical calculation.