It is a common practice to lockout and/or tagout control devices. In a nuclear power plant’s control room with its many analog controls, you might (for example) see red covers over specific switches.

Part 1 in a series of articles on motor control design starts with an introduction to motors and controllers. Electric motors consume almost half of the electricity produced worldwide. They, in fact, ...

TASERS are increasingly used to subdue suspects or as personal weapons. TASERS, also called "electrical control devices," have been used by law enforcement since the mid-1970s, with the intention to ...