Ring main MCB tripping, nothing plugged in.

[DPG]

Is it raining?

You need the weather forum

 

[Judd]

I remember having a earth fault blowing a 1361 cartridge fuse, a new fuse would last between 1 and 2 hours with no loads connected,
I/R readings bouncing all over the place leading me astray many times.
When I was ready to give up I noticed a heavy box of old books resting on a JB in the loft the knock outs hadnt been removed and was putting pressure on the cable, to naked eye the cable looked fine but was definitely the cause of the issue.
In your case the MCB tripping suggests a L-N fault, unless your RCD isn't operating correctly,

 

[The Ghost]

Anyone been using a steamer wallpaper stripper?