WP 8169

Isolated the cable trays from the cable tray supports with Teflon for the following racks:

1. PSL-R1
2. PSL-R2
3. ISC-R1
4. ISC-R2
5. ISC-R4

Isolation is to help control our ground points. Each rack is now tied to building ground at one dedicated point. Same work has been done at EX, EY, and HAM6 racks. See alog 49236 and 48539.