Maybe a better idea would be to try to ensure that the cables etc are protected.
Isn't this why we have additional protection it the form of RCDs?
What is bonding going to achieve?
It's going to introduce an alternative, low resistance, earth path.
Take, for example, a hand held blender. You're stood holding it and a metal mixing bowl on our metal worktop. There is a fault to the casing of the blender.
With RCD only protection you'd have a <30ms trip and a very minor electric shock.
With RCD and Bonding would the low resistance earth path allow for a larger shock whilst still tripping in <30ms?
With no RCD relying on Bonding only, your getting a right belt, but hopefully our circuits are well designed and OPCDs correctly selected and we get a <0.4 second frying.
With no RCD and no Bonding our face slowly melts, like the ---- (Wow, we can't refer to the goose stepping, dapper krauts
) in Indiana Jones and the Raiders of the Lost Ark, as nobody bats an eyelid as the smell of burning meat eminantes from the kitchen.
So, are the bonding fetishists suggesting we bond to mitigate a failure of the RCD.
Where does that stop? Two I dependant bondings in case one fails?
Belt, braces, elasticated wasteband and a little person with a modesty curtain.