AFCOM

Central Ohio Chapter November Meeting 2018

We had a great time at the AFCOM Central Ohio Chapter meeting - download the presentation below (under the photos) for more details.

Electrical Infrastructure Update at OhioHealth

• Original infrastructure dated from 1987
• Although some components were updated, main protection and distribution remained the same
• Fusible switch design lacked flexibility needed for coordination
• Ground fault protection design a single point of failure
• High levels of arc flash hazard hindered maintenance

Reasons for change

• Improve maintainability by reducing arc flash hazard energy
• Improve coordination to reduce impact of electrical faults
• Building outage caused by chiller motor fault and GFI operation
• Potential for more outages due to ground fault protection design
• Needed to eliminate single points of failure from GFI