# trapped-key interlocking

> use of locks and keys for sequential control of equipment and machinery to ensure safe operation

**Wikidata**: [Q1719216](https://www.wikidata.org/wiki/Q1719216)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Trapped-key_interlocking)  
**Source**: https://4ort.xyz/entity/trapped-key-interlocking