Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Congratulations The Obturator on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Ground Fault Protection for TN-Systems in IEC land

Thread starter NickParker
Start date Oct 26, 2021

Status: Not open for further replies.

Oct 26, 2021

NickParker

Electrical

Is is normal to provide ground fault protection in the Main breaker (Incoming) and the outgoing breaker for the TN-S systems? Since the neutral is solidly grounded and the fault current would be sufficiently high, does it still require dedicated ground fault protection like LSI"G" instead of LSI.