Bird strike dislodged an 11 kV cable over a public road

Energy type: 
Electricity
 
Event summary: 
Energy Safety received a report from an electricity network company of a notifiable electrical accident after a bird strike which dislodged an 11 kV cable over a public road. A moving company vehicle stuck the low hanging dislodged cable breaking it. The driver received an electric shock after getting out of the vehicle to investigate and was taken to hospital.
 
Accident ID: 
160304-07
 
Accident date: 
4 March 2016
 
Site: 
Public
 
Environment: 
Outside (above ground)
 
Voltage: 
11000
 
Equipment: 
Overhead lines
 
Accident type: 
Electrical shock
 
Casualty: 
Non-fatality
 
Injury: 
Shock
 
Property damage level: 
No property damage
 
Outcome of investigation: 

Bird strikes occur occasionally and are known to bring down high voltage transmission lines. In this case a worker exiting a removal van parked under the lines when the cable fell onto it may have received an electric shock, or alternatively fell from the van when the cable fell. The latter is more likely given that the network protection system protection will have operated almost instantaneously when the two phases short circuited when the birds hit.  The victim was sent to hospital, but returned later that same day to collect his belongings indicating no significant injury was sustained.