Electrician fined for EICR.

Chris Pearson: 
 

perspicacious: 
If someone were to put a nail into the cable just under the surface, would that be safe or dangerous?

So, BOD, are you saying that any non-RCD protected circuit with cables in walls is a C2?

The newspapers are not exactly full of stories of people who have succumbed whilst putting nails in walls. Perhaps that is more by luck than judgement?

I suspect that most 40 - 50 year old houses would have had wooden floors and that cables would approach sockets from below so no risk from picture hooks there. Light switches are invariably in corners so you couldn't put anything but a very small picture there. And then if you tried to hit the line conductor, which is less than 2 mm across, with a nail of a similar size you would probably fail.

C3 with recommendation for RCD protection. Most houses had solid floors downstairs from the 60s. Kitchen fitters are highly skilled in hitting cables!

Chris Pearson: 
 

perspicacious: 
If someone were to put a nail into the cable just under the surface, would that be safe or dangerous?

So, BOD, are you saying that any non-RCD protected circuit with cables in walls is a C2?

The newspapers are not exactly full of stories of people who have succumbed whilst putting nails in walls. Perhaps that is more by luck than judgement?

I suspect that most 40 - 50 year old houses would have had wooden floors and that cables would approach sockets from below so no risk from picture hooks there. Light switches are invariably in corners so you couldn't put anything but a very small picture there. And then if you tried to hit the line conductor, which is less than 2 mm across, with a nail of a similar size you would probably fail.

C3 with recommendation for RCD protection. Most houses had solid floors downstairs from the 60s. Kitchen fitters are highly skilled in hitting cables!