Nov 15, 2021 #1 adityalagudu Electrical Joined Oct 2, 2020 Messages 18 Location US Are there any guidelines or periodic activities to replace/check the CT&PT test blocks?
Nov 15, 2021 #2 beyond86 Electrical Joined Sep 24, 2017 Messages 146 Location RU The same period as a protection check. Upvote 0 Downvote