IEC 61643-31:2018 

Low-voltage surge protective devices - Part 31: Requirements and test methods for SPDs for photovoltaic installations

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Abstract

IEC 61643-31:2018 is applicable to Surge Protective Devices (SPDs), intended for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are designed to be connected to the DC side of photovoltaic installations rated up to 1 500 V DC. These devices contain at least one non-linear component and are intended to limit surge voltages and divert surge currents. Performance characteristics, safety requirements, standard methods for testing and ratings are established.  SPDs complying with this standard are exclusively dedicated to be installed on the DC side of photovoltaic generators and the DC side of inverters. SPDs for PV systems with energy storage (e.g. batteries, capacitor banks) are not covered. SPDs with separate input and output terminals that contain specific series impedance between these terminal(s) (so called two-port SPDs according to IEC 61643-11:2011) are not covered. SPDs compliant with this standard are designed to be permanently connected where connection and disconnection of fixed SPDs can only be done using a tool. This standard does not apply to portable SPDs.

Additional information

Publication typeInternational Standard
Publication date2018-01-10
Edition1.0
Available language(s)English/French
TC/SCTC 37/SC 37A - Low-voltage surge protective devicesrss
ICS29.240.01 - Power transmission and distribution networks in general
29.240.10 - Substations. Surge arresters
Stability date  2020
Pages107
File size2402 KB

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