Very high Zs reading

[mspms]

Good evening all. I wonder if anyone could give me a steer as to why I am getting very high Zs readings. I have been testin a circuit that has a R1+R2 of 0.23 ohms but I seem to be getting Zs reading on L-E of + 40ohms. L-N is coming in at 0.2ohms. The incoming fuse is a 63amp BS1361 an RCD main switch protecting all circuits. All other tests are fine. I am wondering whether it could be my meter not reading correctly on the Zs test. Any ideas?

Thanks all.

 

[SKY]

24KA - jesus - I never really see more than 2KA around my next of the woods.
Seen 5.9KA in London which if I recall is the highest I have seen.
Are you local to Essex? if so you can borrow my spare calibrated meter if you like.