Here is a photo of typical mouse damage you can see some chewing on wires over the wood which can cause electrical outages.
Chewed wires in attic.
If the wires are touching wood which happens quite commonly in attics yes it can start a fire.
Damaged electrical wires can also spark a fire.
Feces and chewed wires.
It depends on many factors such as the length of time the animals have been in the attic the type of animals the number of animals the presence of electric.
Chewed wires do not usually mean mice.
Some more chewed electrical wires.
Examples include chewed electrical wires flattened insulation destroyed ducts nesting material and lots of feces.
A person who comes into contact with chewed electrical wires can be electrocuted which can cause serious injuries or death.
Damaged electrical wires can split and cause power failures.
Animals can cause considerable damage in the attic but not always.
The fire hazard from chewed electrical wires is one of the biggest risks of having rodents in your attic.
Photographs of mouse chewing on electric wires in attic.