Overview

 

 

Trapped Key: Where did they come from, where will they go? These risk reduction measures have an interesting history, and we’d like to think an interesting future too.

 

Trapped Key systems can be used to enforce LOTO procedures, to control access, or to avoid unexpected start-up.

 

Trapped Key is referred to across a range of machinery safety standards, from ISO 14119 & ISO/TS19837 on the devices themselves, to their inclusion in ISO 14118 on the prevention of unexpected start-up, and more.

WATCH THE FULL WEBINAR

 

 

✅ Enforce LOTO

✅ Control access

✅ Prevent unexpected start up

✅ ISO 14119, ISO/TS 19837 & ISO 14118

 

Safety Webinar Snippets ✂

Trapped Key Standards Today

 

References & Use Across Standards: 

  • ISO 14119 / IS 16812 – Interlocking Devices
  • ISO  / TS 19837 – Trapped Key Interlocking Devices
  • ISO 14118 / IS 16813 – Prevention of Unexpected Start-Up
  • Standards Relating to the Control of Hazardous Energy

Safety Webinar Snippets ✂

Use of Trapped Key – Application

 

Clay Mixer for Roof Tiles

Situations requiring different types of access: 

  1. Inspection
  2. Maintenance

Safety Webinar Snippets ✂

Trapped Key – Not Just Mechanical

 

Mechanical approaches have many benefits

RFID Keys can be as proactive inhibit functions.

Keys can be released only when the machine is in the correct state.

Interlock could be unlocked only when Key has been removed – ensuring proactive inhibit function is used.

We are experts in providing safety solutions for automation

Contact us for tailor guidance and solutions for your machinery safety applications.

Check out our other Webinar 

Subscribe to the Fortress YouTube Channel

Don't forget to subscribe to view more video content!