A Duke Energy line supervisor that I knew was fired for not having his gloves on and he was only watching. It was a set-up by a disgruntled employee but he lost his job nevertheless. Following is another quote indicating the danger;
"Polk County, Fl
Wednesday, September 2, 2009 10:12 AM EDT
http://www.polkcountydemocrat.com/articles/2009/09/02/news/local/doc4a9dade2d4283632518688.txt
A Bartow electric department employee escaped a brush with death Monday night when a downed line he was repairing became energized by a homeowner’s generator.
Eddie Watson, an apprentice lineman, was grasping a line while wearing leather gloves as he worked to repair a line that was brought down by a falling tree in Monday night’s fierce thunderstorm.
When a homeowner whose house was served by the line started up a generator, it sent a surge of power through the line, Interim Electric Dir. Eschol Radford said.
The electricity went through a transformer, stepping up the voltage from 110 volts generated by the generator to 7,200 volts, the transmission voltage. Usually, the transformer does just the opposite, stepping down voltage from 7,200 to 110 volts for service lines to homes.
“He was lucky,” Radford said of Watson.
“Fortunately, he had a young guy, Scott Harrison, a lineman helper, working with him. Scott knocked him off the line and probably saved his life.”
Watson was rushed by ambulance to Lakeland Regional Medical Center, then transferred to the Tampa General Hospital burn center “to keep an eye on him overnight.
“Fortunately, he only had a couple of burns on his hands; he was really lucky,” Radford said.
Watson was sent home on Tuesday, “and is doing really well.”
The accident happened at Harney Road and Holly Lane in Alturas at about 9:30 p.m. Monday.
Safety procedures call for linemen to work every line as if it were energized, which includes the wearing of heavy rubber gloves, Radford said.
“He took a shortcut and got caught; we’ve all done it. He wanted to get the power restored as fast as possible.”
Watson has been employed by the city for about 20 years, half that time with the electric department, Radford said.
Harrison has been with the city three or four years.
Homeowners who use a generator to restore household power during an outage should turn off the main breaker to their home to prevent this type of accident, Radford said."
I turn off my main breaker before connecting my generator and no one else in my house accesses it during generator use. For my own use as my gen is 5K I turn off all my breakers then turn on only what is needed, a lighting circuit and outlets in the den. Then everything else is planned one at a time or as the the generator is able to carry the load. I am not going to recommend this approach to others as other postings indicate everyone is not competent enough to do this. I don't mean it disparagingly but as an engineer when I throw a switch I see the circuit in my mind (as when driving I see a road map in my mind and some people can't even read a road map).