Final answer:
To identify a blown fuse on an open-type cutout, visually inspect the wire inside the fuse and look for any signs of breakage or disconnection.
Step-by-step explanation:
Identifying a blown fuse on an open-type cutout
When a fuse is blown, it means that the wire in the fuse has melted and broken, which protects the circuit from excessive current. In an open-type cutout, you can identify a blown fuse by visually inspecting the wire inside the fuse. If the wire appears to be broken or disconnected, then the fuse is blown.
Example:
Let's say you have an open-type cutout with a blown fuse. Upon inspection, you notice that the wire inside the fuse is visibly broken. This indicates that the fuse has blown and needs to be replaced.