I have got to agree, the fuse is there to protect the cable. IEC leads are designed to be detachable so they can be used on different equipment. I have removed ALL 3 amp fuses from our cables as most are rated at 10A or more.
Why fit a 3A fuse to an IEC lead that is rated at 10A then plug it into a piece of equipment that draws 7A ?
3A fuses should not be fitted to IEC cables. I say 7A minimum.