In addition, it should not be led round a bollard or drum of a diameter less than 4 times the circumference of the rope; and if it has to run through a block the diameter of the sheave should be at least 6 times the circumference of the rope.
Ukwangeza, akumelanga ikhokelelwe ngokungqonge intsika ekubotshelelwa kuyo intambo yenqanawa okanye umqulu ekusongelwa kuwo ucingo lwesinqumla-sangqa ezincinci ngokuphindaphindwe ka-4 kwisazinge sentsontelo; kwaye ukuba ifaneleke ukuba inqumle kwibloko yentsontelo isinqumla-sangqa sevili elinegcume lomthi kwisazinge salo kumele noko lisiphindaphindwe ka-6 isazinge zentsontelo.