BS EN 619:2002 pdf download

BS EN 619:2002 pdf download.Continuous handling equipment and systems- Safety and EMC requirements for equipment for mechanical handling of unit loads.
3.8
single strand drag chain conveyor
conveyor with a single strand chain or wire rope in a duct beneath or above the ground as a traction element dwectly connected with transport cars (Figise A.4)
3.9
overhead conveyer
conveyor in which carrying elements are hanging on overhead tracks and are attached e.g. directly to either the traction chains or ropes or to separate trolleys powered by chain driven pusher dogs (Figure k5)
3.10
swing tray, fixed tray and similar conveyors
conveyor in which the carrying element is attached with one or more chain strands that run in parallel as traction elements (Figure A.6)
3.11
roller conveyor, wheel conveyor and ball transfer table
conveyor in which some or all of the rollers, wheels or balls are driven (Figure A8) or can rotate freely (Figure A.?)
3.12
seif-piopelled overhead conveyor
overhead conveyor with individually driven carrying elements (Figure A.91
3.13
transfer car
mechanically guided car for transfernng unit loads which is taken from a conveyor, pushed laterally and delivered to another conveyor or to another device (Figure AlO).
3.14
vertical transfer device
device with raising or lowering movements of more than 200 mm in the path of conveyors in which unit loads can be transferred from one defined level to one or more defined levels by a carrying element (Figure A. 11)
NOTE These are not to be considered as goods lifts acoorcng to EN 81-3.
3.15
horizontal transfer device
permanently installed unit in the path of conveycre which diverts the unit loads at the same conveying level in a diection deviating from the original conveying direction e.g. turntable (Figure A. 12)
3.16
competent Person
designated person, suitably trained and qualified by knowledge and practical experience, and provided with the necessary instructions to enable the required task to be carried out safely
4 Hazards
The most important hazards are given in this clause. For a full list of hazards see annex B.
NOTE The hazards described below usually occur in conveyor installations In combination, eg, crushing, shearing and drawing-in points in the case of conveyors with pusher clogs.
4.3.2 Hea Wi-damaging effects may result from a hot or cold working envwonmenl.
4.4 Hazards due to neglecting ergonomic principles in machine design
Hazards may arise e.g. from:
— poor design of control devices and working places
— overslress of personnel with regard to speed and effod
4.5 Hazards caused by failure of energy supply, breaking down of machinery parts or other functional disorders
4.5.1 Hazards can occur in the case of failure of energy supply if conveyors or loads reverse or fall back unintentionally. If rollers break on a self propelled overhead conveyor, the trolley can derail.
4.5.2 Hazards due to component failure may occur e.g. breakage of roller on a self propelled overhead conveyor which can cause the trolley to fall.
4.5.3 Hazards may arise as a result of unexpected ejection of machine parts or fluids e.g. failure of hydraulic or pneumatic components.
4.5.4 On large installations, hazards, e.g hydraubc, pneumatic, electncal. mechanical. may arise due 10 incorrect assembly on site as a result of inadequate erection or assembly instructions.
5 Safety requirements andlor measures
Machinery shall comply with the safety requirements andior measures of this clause and in addition with EN 292-1 and EN 292.2 for hazards relevant but not significant which are not dealt with in this standard.
Where for safety reasons areas containing continuous handling equipment are completely enclosed, entrance into this area shall only be possible via interlock gates. This interlock shall give a stop command when actuated. Restarting of the equipment shall only be under control of those persons utilising a key dependence system.
When stopping occurs by e.g. tnpp.ng of safety devices, buffers, end stops, the stopping distance shall be as short as possible but compatible with the safety of the system.
5.1 Measures for protection against mechanical hazards
51.1 Measures for protection against crushing and shearing hazards
5.1.1.1 General
In the working and traffic area danger zones between powered and fixed components of horizontal or vertical transfer points, feed points, diverting points, horizontal and vertical transfer devices and gates shall be safeguarded. This shall be achieved e.g. by providing a continuous maximwi gap of 5 mm between moving and fixed components (see Figure Dl).