Your plant’s 480V load-side distribution system is under a cable testing program for feeders and for branch circuits supplying motors over 30 hp. During each Thanksgiving shutdown, an electrical testing firm conducts cable testing and submits a report identifying suspect cables. During the Christmas shutdown, those cables get replaced.
Electrical Troubleshooting Quiz — Sept. 5, 2017
To help convince corporate of a necessary repair, first address issues that may be damaging perfectly good equipment.