I went to do a PIR today and found the same thing, installation around 10 years old (I'm guessing) all equi and supplementary bonding in place and in general a good install but no earth connection at all.
Ze was reading 12.7 ohms due to pipework I guess. I have connected MET to service head...
Plug
If your Zs reading is low enough you can use the type C anyway no?
Peter
________________________________
lynda, moderator
dug1001, please do not hijack old posts, this post was made in 2004