Prepare single-line, metering and relaying, schematics, and protection logic drawings; perform electrical system, equipment sizing, and auxiliary system calculations; size, select, and specify transformers, switchgear, motor control centers, and distribution panels; size, select, and specify power, control, and instrumentation cables; size, select, and specify direct-current/uninterruptible power supplies and emergency generator systems; and. Extraordinary teams building inspiring projects: Since 1898, we have helped customers complete more than 25,000 projects in 160 countries on all seven continents that have created jobs, grown economies, improved the resiliency of the world''s infrastructure, increased access to energy, resources, and vital services, and made the world a safer, cleaner place.