Specifications include, but are not limited to: Contactor to perform preventative maintenance, repair and/or replacement as directed by Amtrak; electrical repairs, substations, transformers, electric motors and circuit board for the Chicago yard and the South Branch Bridge (1575 S. Lumber St. Chicago, IL 60661) during normal business working hours (Monday-Friday) and provide emergency repairs on a 24-hour, 7-day-a-week basis as requested by Amtrak. Emergency work, repairs and maintenance for the Chicago Yard, Maintenance Facility Electrical Distribution System. This is including, but not limited to approximately 20 substations, 20 switch gears, Primary high-voltage underground cables, secondary cables, 20 transformers and various electrical cabinets, main breakers, power stands, power reels, etc.