Fuses mean protection is localised. If the socket is good for 13A, but the cable is only safe to 5A, you can fuse at 3A or 5A, and know it’s safe.
This is partially useful for extension leads. We don’t have to worry about overloading a multiway extension. If we do, it will pop a 10p fuse, rather than cause a house fire.
Or you could just use thicker wires like everyone else, or drop the use of ring mains, which is the actual reason why fuses in plugs were introduced. The reason why this was done was post-WW2 copper shortage. In other countries you’ll see more likely star type circuit
Are you really going to change the fuse in the receptacle when you plug a different cable in?
Low amp rated extension cords are dangerous unless they have a fuse in the cable. Best practice is to always use a cable that is rated higher than the circuit breakers.
Fuses mean protection is localised. If the socket is good for 13A, but the cable is only safe to 5A, you can fuse at 3A or 5A, and know it’s safe.
This is partially useful for extension leads. We don’t have to worry about overloading a multiway extension. If we do, it will pop a 10p fuse, rather than cause a house fire.
Or you could just use thicker wires like everyone else, or drop the use of ring mains, which is the actual reason why fuses in plugs were introduced. The reason why this was done was post-WW2 copper shortage. In other countries you’ll see more likely star type circuit
Are you really going to change the fuse in the receptacle when you plug a different cable in?
Low amp rated extension cords are dangerous unless they have a fuse in the cable. Best practice is to always use a cable that is rated higher than the circuit breakers.
The fuse is in the plug itself. It goes with the cable. That’s the point of it! 🤣 It lets you down rate your cables from the breaker rating.