Safety of machinery. Trapped key interlocking devices. Principles for design and selection
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1 Scope This document specifies principles for the design, selection and application of trapped key interlocking devices and systems for machinery applications, independent of the type of energy used to control them or that they control. The requirements of this document apply to the safety related aspects of trapped key interlocking devices and systems. ISO 14119 always applies unless an exception is given in this document. This document is intended to be used in conjunction with ISO 14119. This document does not provide testing requirements.
NOTE Documents addressing testing requirements can be found in the Bibliography.
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