Low Voltage Surge Protective Devices - Part 31: Surge protective devices for specific use including d.c. - Requirements and test methods for SPDs for photovoltaic installations

Designation Number:
CAN/CSA-C22.2 No. 61643-31
Standard Type:
National Standard of Canada - Adoption of International Standard
Standard Development Activity:
New Standard
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

This Standard  is applicable to devices for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are designed to be connected to the d.c. side of photovoltaic installations rated up to 1 500 V d.c.

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 d.c. side of photovoltaic generators and the d.c. side of inverters.

SPDs for PV systems with energy storage (e.g. batteries, capacitor banks) are not covered.

SPDs with separate input and output terminal(s) that contain specific series impedance between these terminal(s) (so called two port SPDs according to IEC 61643-11) are not covered.

Project need:

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Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.