Surge Protection Standards

Surge Protection Regulations

Created by: Glen Zhu | Updated Date: Aug 27, 2022

Keep up with surge protection standards

Why are surge protection requirements and test standards changing?

Global surge protection standards and surge protection designs have been updated to reflect the major trends of growing reliance on electronic systems and renewable energy.

Society is relying ever-more on sophisticated electronic devices and systems to support our everyday lives. At the same time, electronic systems are shrinking in size, making electronic components more vulnerable to damage from electrical surges. As a result, there’s more need for surge protection.

Another driver for surge protection is the integration of renewable energy. Solar and wind facilities rely on electronics in inverters, converters and condition monitoring – and these need to be protected from the electrical surges that arise from lightning.

IEC 61643-11

IEC 61643-11:2011

Low-voltage surge protective devices – Part 11: Surge protective devices connected to low-voltage power systems – Requirements and test methods

IEC 61643-12

IEC 61643-12:2020

Low-voltage surge protective devices – Part 12: Surge protective devices connected to low-voltage power systems – Selection and application principles

IEC 61643-21

IEC 61643-21:2012

Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods

IEC 61643-22

IEC 61643-22:2015

Low-voltage surge protective devices – Part 22: Surge protective devices connected to telecommunications and signalling networks – Selection and application principles

IEC 61643-31

IEC 61643-31:2018

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

IEC 61643-32

IEC 61643-32:2017

Low-voltage surge protective devices – Part 32: Surge protective devices connected to the d.c. side of photovoltaic installations – Selection and application principles

BS EN 61643-11

BS EN 61643-11:2012 + A11:2018

Low-voltage surge protective devices – Part 11: Surge protective devices connected to low-voltage power systems – Requirements and test methods

BS EN 61643-21

BS EN 61643-21:2001 + A2:2013

Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods

BS EN 61643-31

BS EN 61643-31:2019

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

IEC 62305

IEC 62305-1:2010

Protection against lightning – Part 1 General principles

IEC 62305-2:2010

Protection against lightning – Part 2 Risk management

IEC 62305-3:2010

Protection against lightning – Part 3 Physical damage to structures and live hazard

IEC 62305-4:2010

Protection against lightning – Part 4 Electrical and electronic systems within structures

BS EN 62305

BS EN 62305-1:2011

Protection against lightning – Part 1 General principles

BS EN 62305-2:2012

Protection against lightning – Part 2 Risk management

BS EN 62305-3:2011

Protection against lightning – Part 3 Physical damage to structures and live hazard

BS EN 62305-3:2011

Protection against lightning – Part 4 Electrical and electronic systems within structures

IEC 62561

IEC 62561-1:2012

Lightning Protection System Components (LPSC) – Part 1 Requirements for connection components

IEC 62561-2:2018

Lightning protection system components (LPSC) – Part 2 Requirements for conductors and earth electrodes

IEC 62561-3:2017

Lightning protection system components (LPSC) – Part 3 Requirements for isolating spark gaps (ISG)

IEC 62561-4:2017

Lightning protection system components (LPSC) – Part 4 Requirements for conductor fasteners

IEC 62561-5:2017

Lightning protection system components (LPSC) – Part 5 Requirements for earth electrode inspection housings and earth electrode seals

IEC 62561-6:2018

Lightning protection system components (LPSC) – Part 6 Requirements for lightning strike counters (LSC)

IEC 62561-6:2018

Lightning protection system components (LPSC) – Part 7 Requirements for earthing enhancing compounds

BS 7671

BS 7671:2018

Requirements for Electrical Installations

IET Wiring Regulations, Eighteenth Edition

UL 1449

UL 1449 4th edition

Standard for Safety Surge Protective Devices

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