deadman switch


Also found in: Medical, Wikipedia.

deadman switch

[′ded‚man ‚swich]
(electricity)
An electrical switch that activates some function if it is turned off.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
There were also problems with a further automatic closure system, or deadman switch, that should have closed off the preventer if those connections were lost.
Standard features include: a wide viewing window with high density fluorescent lighting for maximum operator visibility; full width access doors for easy loading and unloading and several operator safety features such as door interlock switch and a deadman switch on the foot pedal.