Attachment 3 psc ref#: 361938 Public Service Commission of Wisconsin received: 03/22/2019 1: 22: 20 pm

SECTION 6: Substation Operation Maintenance & Construction
.....................................
6-1 
General ...............................................................................................................................6-1 
Substation Entry .................................................................................................................6-1 
Working in Energized Substations..................................................................................... 6-1 
Construction in Energized Substations.............................................................................. 6-1 
Work near energized facilities:
.......................................................................................6-1 
Mechanized Equipment:
.................................................................................................6-2 
Substation Fences:
..........................................................................................................6-2 
Footing Excavation:
.........................................................................................................6-2 
Barricades & Barriers .........................................................................................................6-2 
Working on Overhead Structures .......................................................................................6-2 
Testing Procedures ............................................................................................................6-3 
Circuit Breaker Maintenance & Repair .............................................................................. 6-3 
SF
6
Breakers...................................................................................................................... 6-4 
Transformers ..................................................................................................................... 6-5 
Capacitors.......................................................................................................................... 6-5 
Loadbreak & Non-Loadbreak Disconnects (Air Switches)................................................. 6-6 
Current Transformers ........................................................................................................ 6-6 
Rotating Machinery.............................................................................................................6-6 
Control Batteries ................................................................................................................ 6-7