Belt drives. Grooved pulleys for V-belts (system based on effective width). Geometrical inspection of grooves Ingestion-build-84997 BS EN 3475-504 specifies a

BS EN 3475-504 specifies a method of checking the resistance to damage under torsion of insulated conductors or finished cables

— healthcare buildings – hospitals

commissioning and maintenance of evacuation alert systems for use by the fire and rescue service in buildings containing flats

this part of ISO 1219 gives the equivalent text in German

The range of nominal conductor diameters covered by this standard is as follows:

Belt drives. Grooved pulleys for V-belts (system based on effective width). Geometrical inspection of grooves Ingestion-build-84997 BS EN 3475-504 specifies a1 Scope This International Standard specifies the methods of checking the regularity of the grooves and pulleys for V belts specified in the system based on effective width. The grooved pulleys can be designed for use with classical or narrow V belts. The V belts can be either single or joined units. It is intended to specify the inspection parameters and tolerances of grooved pulleys in future International Standards.