How To Choose A Surge Protector? Parameters, Sizes, Specifications And Models Explained In Detail!

Do you have a lot of questions when choosing a surge protector? What is the standard basis for selecting a surge protector? How to choose the parameter size and specification model? How big should a level 1, level 2, and level 3 surge protector be?

From the following content, we will introduce some common knowledge about the selection of surge protectors.

Preface: The selection of surge protectors must meet the acceptance requirements of lightning protection standards and the actual protection needs of the product!

Selection based on standards:
GB50057-2010 "Building Lightning Protection Design Code"
GB50343-2012 "Building Electronic Information System Lightning Protection Technical Specification"
IEC61312 "Lightning Electromagnetic Pulse Protection"
GB/T 18802.11-2020 "Low-voltage Surge Protective Device (SPD) Part 11: Surge Protective Devices for Low-voltage Power Systems Performance Requirements and Test Methods"
(IEC 61643-11: 2011, Low-voltage surge protective devices- Part 11: Surge protective devices connected to low-voltage power systems-Requirements and test methods, MOD)