High Ze reading fails EICR

[Maarel]

Hello there. I've been looking around here and found some conflicting information. I have a question if I may ask. I had an electrician come over to perform an EICR, and all the installations were in good nic. However, he said that the Ze measurement was 14.5 Ohms on a TNS system, so he refused to sign it off. I've arranged for the DNO to investigate, and they say that our stairwell need to be rewired due to outdated wiring, which would take them 1-2 months. The issue is that I need a valid EICR in a maximum of two weeks, and I'm wondering if there's any chance he could have signed this off as satisfactory, considering that the dwelling's electrical installation is protected by an RCD, which, if I understand correctly, would isolate the system within the required 0.4 seconds in case of an Earth fault.

 

[westward10]

I would be asking for a completed EICR with all results correctly entered and Codes as necessary.