Under what condition can welding be performed on loads suspended by the crane?

Welding on loads suspended by a crane is a specialized task that requires strict adherence to safety protocols. The correct condition under which welding can be performed is when the load has insulated slings. Insulated slings act as a barrier, preventing the electrical current from the welder from passing through the slings and into the crane or operator. This helps to mitigate the risk of electrical shock and ensures a safer working environment.

Using insulated slings is crucial when performing welding because regular slings do not provide this electrical insulation, which could lead to dangerous situations, including equipment damage or injury. Safety regulations typically mandate that safety precautions, such as using insulated equipment, should be taken before welding operations are conducted on suspended loads to protect personnel and maintain safe working conditions.