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First edition 2000-09-15
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1 Scope
This International Standard specifies designed-in means aimed at preventing unexpected machine start-up
(see 3.2) to allow safe human interventions in danger zones (see annex A).
This International Standard applies to unexpected start-up from all types of energy source, i.e.:
power supply, e.g. electrical, hydraulic, pneumatic;
stored energy due to, e.g., gravity, compressed springs;
external influences, e.g. from wind.
