Defeating of safeguards on machines causes to serious accidents, high costs and restrict the availabiltity of machines. Taking a look inside the enterprises shows: one-third of safeguards are defeated (from Report of defeating of protective devices of machinery -only available in german-). This results in thousands of accidents every year – also deadly accidents. The aim must be to prevent these accidents.
There are many ways of getting caught in a vicious circle: Look at the life cycle of a machine from design to use at the end customer and you will see clearly that the aspect of “„Defeating protective devices” plays an important role in many places. However, this is rarely noticed in practice. Quite apart from financial risks and hazards arising for the machine operator, legal provisions are violated also. This refers to all parts of the vicious circle with all persons involved bearing responsibility. More …
Break the vicious circle!
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In this context, the “classical example” surely is the actuator plugged into the position switch of a guard gate. However, it is very often rather difficult to detect a manipulation. Here, colleagues tend to judge such a situation quite differently if an “expert” – e.g. the plant electrician – bridges a protective device, as they think, “he´s allowed to do so”.