20.99 Oct 21, 2022
CD Dec 29, 2023
TC 37/SC 37A
This document addresses the requirement and corresponding test methods for SPD monitoring devices (SMD) which is used to monitor SPD working status and parameters and to communicates locally and/or remotely.
The requirement and test of SPD is referred to IEC 61643-X1 series according the application field of the SPD.
IEC TS 61643-05 ED1
20.99 WD approved for registration as CD
Oct 21, 2022