Should the humble domestic MET (Main Earth Terminal) be retired and be replaced by Green coloured Henley style connector block?
Things to consider
More electronics in the dwelling naturally leaking mA to Earth in normal operation
Connector block is safer as has no exposed terminals thus introducing an IP rating
With more and more PEN faults occuring on the network. A domestic install could have the Earth/Earth Bond become a live conductor under fault conditions. Under certain PEN fault conditions the MET could be at 230v nominal. This also opens up the debate of
if a 16mm CSA Earth cable is wise if the tails are 25mm CSA. (again 16mm CSA under PEN fault conditions)
As always please be polite and respectful in this purely academic debate.
Come on everybody lets help inspire the future.
