Yes guys you are correct. The RCD at the supply into the marina is rated 100ma. My error I’m afraid, should have gone to specsavers..
But interesting meeting with the Electriciam.
He first tested our bowt which passed with flying colours! Yippee!
at that instant the whole marina tripped! (Yippee, but I didn’t say that.) with our boat not connected.
So this poor bloody electrician has a real problem. The boat next to ours has a shoreline plugged into a galvanic isolator and the euro plug is full of rainwater. He disappeared and changed some RCD stuff and unplugged other suspects’ boats.
Later, much later, he came to our pod and tested the earth which was OK at 60ohms. However as soon as he put his tester into our pod socket and began to test the RCD at the pod the main RCD at the marina tripped at a very low current, I couldn’t see what sadly. Sorry.
So we have what my dad would have called a right pig’s ear. I left the poor fellow still working his socks off at 4.30pm!
At least I know it is not our bowt!
I must thank you for your comments so far and look forward to reading some more of your thoughts this evening!