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trapped-key interlocking

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

en-GB/ˈtɹæpt - ˈkiː ˌɪntəˈlɒkɪŋ/
en-US/ˈtɹæpt - ˈki ˈɪntɚˌlɑkɪŋ/

Categories:

railway signalling systeminterlockprotective device