It may start a fire or electrocute someone
No appliances should be used with a frayed or damaged electrical cord.
Frayed cables/wires can cause fires.
Lick them and find out.
It's where the protective coating of the wire has been damaged, making the lead unsafe to use.
check for frayed wires and plugs to make sure it will succesfully turn on
Probably one of the wires is frayed causing the signal to become distorted.
Frayed or shorted wires to the window motor.
For electrical appliances to work the wires must be correctly connected and plugged in to the receptacle.
Where the wires attach to the handle probably became frayed and touched causing a short.
Toaster,
To allow the wires to be connected to a source of electricity.
It depends on the condition of the wires currently in use. If they are cracked or frayed, by all means, replace them. start the moter at night or in the dark and wach for sparks betwen wires