ISO 14119:2024 - Interlocking device
ISO 14119:2024 / Interlocking devices associated with guards - Ed. 3 Sept. 2024
ISO 14119:2024
Safety of machinery - Interlocking devices associated with guards - Principles for design and selection
This document specifies principles for the design and selection (independent of the nature of the energy source) of interlocking devices associated with guards and provides guidance on measures to minimize the possibility of defeat of interlocking devices in a reasonably foreseeable manner.
This document covers principles for the design, selection and application of the following:
- parts of the guards which actuate interlocking devices;
- trapped key interlocking devices and systems for machinery applications.
NOTE
ISO 14120 specifies general requirements for the design and construction of guards provided primarily to protect persons from mechanical hazards. The processing of the signal from the interlocking device to stop the machine and prevent unexpected start up is covered in ISO 14118, ISO 13849-1 and IEC 62061.
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This document was prepared by Technical Committee ISO/TC 199, Safety of machinery, in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 114, Safety of machinery, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 14119:2013), which has been technically revised.
The main changes are as follows:
- ISO/TS 19837 has been integrated as new Annex K with specific requirements for Type 5 interlocking devices – “trapped key interlocking devices” (see definition 3.18.1);
- trapped key interlocking systems and Type 5 interlocking devices have been defined;
- Table 5 has been improved and renamed;
- test procedures are described in new Annex I;
- ISO/TR 24119 has been integrated into new Annex J.
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Fonte ISO
- Pubblicato: 17 Settembre 2024
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