It also caused homes in the area to lose power near 16th Street and Glendale Road.
The power is back on for most of the homes in this area and Arizona Public Service will work on the lines to restore power throughout the night for all residents.
APS said the man was working for a communications company when a communications conduit came into contact with a primary wire that caused an arc electrocuting the man, burning his hands and clothes.
Fire officials say he was rushed to Maricopa Medical Center in critical condition.
APS said the explosions cut off power for close to 1,500 people in the area.
Moira Rounds lives nearby and said she heard an explosion. "It was around 5, 5:15 and I heard a couple of loud explosions and I came out and found APS workers here. Apparently they said that someone had fallen, one of their workers."
About two dozen homes are still without power.
The victims name is not being released at this time.
APS and Phoenix Fire are investigating the accident.