wiring diagram

English

Noun

wiring diagram (plural wiring diagrams)

1. A schematic representation of the components of an electrical device showing how electrical wiring must be connected.
   • 1962 April, R. K. Evans, “The Acceptance Testing of Diesel Locomotives”, in Modern Railways, page 268:

     Because most diesel failures can be traced to electrical faults, minor in themselves but often difficult to pin-point, any unscheduled halt during a trial run is often the signal for the frenzied unfolding of wiring diagrams and the appearance of an impressive array of voltmeters and circuit testers.