A maintenance outage refers to a planned period of time when a system or equipment is intentionally turned off or temporarily unavailable in order to perform necessary repairs, updates, or maintenance tasks. Full definition
The DHR System allows you to check for scheduled maintenance outages that may prevent you from downloading your record. (dmv.org)
Refueling and maintenance outages for nuclear units (as well as fossil - fueled units) typically occur in the spring and fall «shoulder» seasons when demand for electricity is generally lower. (eia.gov)
Direct and oversee maintenance outages at coal and natural gas power plants to ensure successful completion of outage work scopes and conformity to safety and standards. (livecareer.com)