Dictionary of Electrical Engineering

Commonly used terms in the Electrical industry.

direct burial
(1) the practice of burying a specially-armored power or communications cable in a ditch without the use of a surrounding conduit.
(2) a term applied to any cable which is meant for direct burial. direct control bottom, first, control layer
of a multilayer controller, directly responsible for adjusting the manipulated inputs to the controlled process; typical example of direct control is the regulation layer of an industrial control system, where the manipulated inputs are used to make the controlled variables follow the desired set point values.