Glossary 77
Glossary
branch circuit
The conductors and components following the last overcurrent protective device protecting a load.
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
EPO
emergency power off
equipment
A general term, including fittings, devices, appliances, luminaires, apparatus, machinery, and the like used
as a part of, or in connection with, a modular data center. (Source: NEC.)
fuse, branch circuit type
A fuse of Class CC, G, H, J, K, L, R, and T. These fuses are able to provide branch circuit protection.
fuse, supplementary type
Miscellaneous type and miniature type fuses. These fuses are able to provide supplementary protection only.
IEC
International Electrotechnical Commission