[Lucien Nunes]

The weak points are specifically the fuse clips, and the socket contacts in lower-quality accessories, which have imprecise contact area and pressure being little more than bent bits of strip of dubious composition. Reference to high quality products, such as older MK examples, shows what can and should be done.

I have often wondered whether a superior 'high endurance' plug with some additional clamping arrangement for the fuse, such as a steel spring around the contact clips or even a screw clamping arrangement, might find favour with industrial users.