Electrical incidents
Z. Rozkydal


•Electrical incidents
•
•1/ Low – voltage current    220 V
•
•
•2/ High- voltage current   440- 1000 V     in industry
•                                         above 1000 V  in power lines
•
•
•3/ Lightening

•The extent of damage  depends on
•
•- voltage
•- type of current
•- path of current
•- time
•
•The higher voltage and intensity of current
•the more damage
•
•3 % v of all injury by low voltage is fatal
•
•30 % of all injury by high voltage is fatal

•Signs
•
•Cardiac arrest, stop of breathing
•Arythmia, fibrilation of ventricles, asystolia
•Muscle spasm
•Paralysis of muscles for breathing
•Unconsciousness
•Haemolysis and myoglobinuria – kidney failure
•Avulsion of tendons and vertebral fractures
•Burns – in  enters and in exits
•Trombosis, ischemia, necrosis
•Monoparesis, paraplegia

•Low voltage  current
•
•Arythmia, asystolia
•
•Tetania, difficult breathing
•
•
•
•

•
•High voltage current
•
•May jup up to 18 m from its source
•
•The power must be cutt off before
•approaching to casualty
•
•Fatal
•Thermal damage
•Muscular spasm

•First aid
•
•Do not touch the casualty still being in contact
•with the electricity source
•Turn off the source of electricity
•Move the source away - wooden stick
•Stand on a insulating material
•CPR
•Defibrilation
•Sterile dressing of burns
•Transport  to ITU
•

•Lightening
•
•Cardiopulmonal arrest
•Thermal injury, burns
•
•
•First aid
•
•Clear everyone from the site of a lightening strike
•since it can strike again in the same place
•
•CPR
•