- Reaction score
- 520
carrying out an eicr on a building recently we found the external ze reading to be extremely low ie 0.02ohms. so by measurement and testing are fault current read 20ka. now most of the mcbs rcbos ets have an icn of 10kohms. this poses a problem as obvisoluy the mcbs etc would self destruct under fault conditions. what would you code this and more importantly how would we rectify this problem, Interested to here your thoughts.