1. 69 kv arc flash burn

2. Contractor was hired to remove two oil breakers from transmission substation. Note the hose in substation draining oil from oil breaker prior to moving breaker. These breakers were being replaced with gas breakers.

3. Warning tape
Notice the Danger/Warning tape around the breakers. Crew that responded to the outage noticed that tape appeared, depending on how you looked at it, to enclose the breakers being replaced. At first glance this could look to be the area cordoned off to stay away from.

4. Metal tape measure used to measure bushing height
Contractor was hired to pump oil and haul breakers. Contractor who was already pumping oil walked up to energized breaker and with a metal tape attempted to measure the height of breaker.

5. Contact point on bushing
Contractor pumping oil and hauling breakers attempted to measure height of oil breaker. Unfortunately it was an energized breaker, not one of the two that were open, tagged and grounded. Tape made contact hear and we believe arced to the side of the tank.

6. Hole in gravel from fault

7. Appears to be re-rod arcing to ground??

8. Oil hose in background. Burn on side of breaker and small hole in gravel.

14. Injuries
Contractor was rumored to have second degree burns over 100% of his body
Unknown if he was wearing Arc Rated FR
No further information has become available
Reported to have been many “suits” in sub after accident
At least three companies involved in this incident
A public owned sub
Transmission company has equipment in their sub
Transmission company hired contractor to move their breakers
Unclear if Job Briefing was completed
Breakers were properly tagged and grounded prior to accident