§328 吊上げ作業

In the definition of the term ‘lifting operation’, the expression ‘unit loads’ refers to groups of one or more persons or objects or quantities of bulk material which are moved as single items.

The expression ‘necessitating, at a given moment, a change of level’ implies that the term ‘lifting operations’ covers any movement or sequence of movements of unit loads that includes lifting or lowering or both. Lifting and lowering includes changes of level in an upright vertical direction as well as at an inclined angle. It is important to apply a sensible approach when applying this section to movement along very low angle slopes where if the load came free it would not move, such as on a slight slope on a field. A value of such a slope angles cannot be given as the same slope on a rail system could cause the load to “run away”.

The expression ‘at a given moment’ indicates that machinery intended to move objects, fluids, materials or persons in a continuous manner, for example, on conveyors, on escalators or through pipes are not considered as carrying out ‘lifting operations’ in this sense and are not subject to the requirements set out in Part 4.

The expression ‘unit loads’ does not cover parts of the machinery itself. Thus an operation where part of a machine is lifted but no external load is lifted is not considered as a lifting operation in this sense.

Normal digging and movement of materials by earth moving machinery such as, for example, excavators and loaders, are not considered as lifting operations, thus earth moving machinery used only for this purpose is not subject to Part 4 of Annex I. However, earth moving machinery that is also designed and equipped for lifting unit loads is subject to the requirements of Part 4 of Annex I, such machinery designed for use in general construction work can be expected to be used for lifting unit loads (e.g. pipes and other equipment), and this should be taken into account.