china 40w laser machine power lead for UK or Ireland

[Doddy]

Standard "C13" IEC sockets are rated to 10A, only (the kettle-type are a different variant - "C15", by memory, though I might be wrong - and have mechanical interlocks to avoid the wrong plug/socket combos); So, standard PC-type leads should be protected at no more than 10A. In reality, I can't imagine the wiring inside the unit to be rated at that level - a visual should confirm. I'd be tempted to replace the fuse with a 3A.

Bonding straps?, just crimp a couple of eyelets onto the ends of some 2.5mm stranded copper wire with yellow/green insulation and bolt from a single star-point bolt fixed through the steel chassis (look to see if the ground stud provides a suitable earth), the other end onto each hinged/bolted panel (so, main lid, the removable control panel lid, and maybe the rear laser enclosure lid), having cleaned the paint off the steelwork on each panel (don't rely on the bolt to provide low-resistance path to the panel), tighten, then if you fancy, a dab of hammerite over the top to stop corrosion.

Of course, you're reverse engineering safety into the machine - for all my ramblings about these, if I'm honest, I normally live with the flaws.