A man was seriously burnt when he allegedly cut through 400-volt power lines in Northland on Friday, in what was believed to be an attempt to steal copper earth wires to sell for scrap.
The 18-year-old was flown by the Northland Electricity Rescue Helicopter to Whangarei Hospital and was later transferred to Auckland's Middlemore Hospital in a serious condition.
Northpower, which owns the lines and is also the principal sponsor of the rescue helicopter that transported the man, said someone had climbed a transformer pole and cut the 400-volt line.
A spokesman said it was believed this line had then come into contact with the parallel 11,000-volt line to the small town of Tinopai, causing it to trip.
It was also possible the man had been shocked by 11,000 volts, and it was likely he had fallen at least four metres to the ground.