Page 31 - PowerPoint Presentation

Electrical injuries can be divided into low and

high voltage injuries, alternating or direct

current injuries:

Alternating Current Direct Current

Low Voltage Domestic power Car battery
supply Diathermy

High Voltage High tension power Lightning
lines
Substations

Emergency management of Severe
Burns Course Manual 18 Ed. 2016
th

Tissue damage from electrical injury results

from the heat generation, which is a function

of tissue resistance, duration of contact, and

the square of current.

Different tissues exhibit different electrical

resistance according to their electrolyte

content. Bone has the highest resistance,

followed by skin, fat ,nerve, muscle, blood

and body fluids.