Scheduled Maintenance - President's Day Weekend
The U.S. Department of Labor will be conducting scheduled system maintenance beginning Friday, Feb. 15 at 5 p.m. ET through Tuesday, Feb. 19 at 8 a.m. ET. Some pages may be temporarily unavailable. To report an emergency, file a complaint with OSHA, or to ask a safety and health question, call 1-800-321-6742 (OSHA).

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Substation Equipment: Control House

Control House
The substation control house contains switchboard panels, batteries, battery chargers, supervisory control, power-line carrier, meters, and relays. The control house provides all weather protection and security for the control equipment. It is also called a doghouse.

Figure 1. Control house
Figure 1. Control house

Figure 2. Substation control house
Figure 2. Substation control house
Figure 3. Control house
Figure 3. Control house
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