Definition: | interdependent liaison between the control levers or the electric control circuits of different apparatus such as points and signals, which makes it impossible to place them in positions which are unsafe Note 1 to entry: In English, the term “interlocking” refers also to the place where interlocking is achieved. Note 2 to entry: In French, the term “enclenchement” refers also to the individual locking of an apparatus such as points.
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