1 / 7

OH Repair- July 2010

OH Repair- July 2010. Jim Chrzanowski. View Of OH Lead Area. OH Lead Repair May 2010. OH Lead Area- Post May Repair. Bracket added to replace broken bolt during repair of OH lead in May 2010. Charred insulation from OH lead fault in 2007. Crack or void in outer groundwall insulation.

ronan-hooper
Download Presentation

OH Repair- July 2010

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. OH Repair- July 2010 Jim Chrzanowski

  2. View Of OH Lead Area

  3. OH Lead Repair May 2010

  4. OH Lead Area- Post May Repair Bracket added to replace broken bolt during repair of OH lead in May 2010

  5. Charred insulation from OH lead fault in 2007 Crack or void in outer groundwall insulation Lower Lead Location Possible OH short location through void to OH tension tube via support plate that has been removed.

  6. Recommended Repair Steps Clean void in insulation and surrounding area using ethanol, Q-tips and scotch-brite Thoroughly dry insulation area Fill void area with Hysol 3561/2039 and glass bead- slurry mix Overwrap repair area with (2) layers of epoxy/glass tape If possible add Kapton around steel pins to further isolate OH leads from tension tube Allow epoxy 24 hour cure Electrical test OH repair Restore OH/TF bus links and umbrella lid

  7. Proposed Repair Schedule • Friday & Saturday AM- Thoroughly Clean Lead area • Saturday- Make epoxy repair • Sunday- Full cure • Monday- Test OH coil • Monday thru Wednesday AM- restore bus systems and umbrella lid • Thursday AM- Return to tests and operations

More Related