M mbrooke Joined 26 Apr 2015 Messages 51 Reaction score 0 Country 10 Jun 2015 #1 How do earth fault loop impedance requirements and disconnect times change when the live to earth voltage is 133 instead of 230? Thanks!
How do earth fault loop impedance requirements and disconnect times change when the live to earth voltage is 133 instead of 230? Thanks!
Risteard Joined 18 Jun 2010 Messages 2,603 Reaction score 232 Location Derry, Ireland Country 14 Jun 2015 #2 You will need a lower phase/earth impedance to ensure a sufficient current to operate the device in the required time.
You will need a lower phase/earth impedance to ensure a sufficient current to operate the device in the required time.
