double bus-double breaker

double bus-double breaker

[¦dəb·əl ′bəs ¦dəb·əl ‚brāk·ər]
(electricity)
A substation switching arrangement having two common buses and two breakers per connection.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.