Glossary
AHJ
authority having jurisdiction
branch circuit
The conductors and components following the last overcurrent protective device protecting a load.
control circuit
A circuit that carries the electric signals directing the performance of a controller, and which does not carry the main power circuit.
control transformer
A transformer whose secondary supplies power to control circuit devices only (excluding loads).
cover
An unhinged portion of an enclosure that covers an opening.
CSC
container safety convention
disconnect switch
A device that disconnects all ungrounded conductors of a circuit from their electrical supply.
door
A hinged portion of an enclosure that covers an opening.
ECS
environmental control system
EHS
Environmental, Health, and Safety
EPO
emergency power off
Glossary 79