Test certificate tt results help

[dma.electrical]

Hello to all. I have recnently just tested a property which has a tt supply. Ra was 183 ohms, all measured Zs readings were 41.1 ohms, but as i'm new to filling out certificates I have become a little confused as to what i fill in for maximum permitted Zs and the Ze boxes. I done this years ago at college but have totally forgotten what the process is as my last job just required me to get the basic info and someone else would fill in the reports. All help would be fantastic.

 

[JUD]

Max Zs on TT is 1666.66Ω and Ze should be below 200Ω

All circuits protected by 30mA RCD

 

[Des 56]

Max Zs on TT is 1666.66Ω and Ze should be below 200Ω

All circuits protected by 30mA RCD

If you have difficulty writing little numbers,add on 0.34 ohms and it gets easier then
What Ze boxes are you refering to ?

On the main page for Ze write the value of the earth rod (this could be the measured Ze )
On the max Zs permitted write 1667 for 30 m/amp rcd
On the Zs box,write the Ze + (R1+R2)
You could also note the maximum Zs as measured with the parallel paths for future reference. if they are ever required