IEC 61643 is a series of international standards developed by the International Electrotechnical Commission (IEC). These standards define the requirements and testing methods for surge protective devices (SPDs) used in low-voltage power systems, telecommunications, and signal networks.
The purpose of these standards is to ensure the safety, performance, and reliability of SPDs when protecting electrical equipment from overvoltage surges caused by lightning strikes or switching operations.
About IEC/EN 61643：
IEC/EN 61643-11:
Low-voltage surge protective devices – Part 11: Surge protective devices connected to low-voltage power systems – Requirements and test methods
IEC/EN 61643-12:
Low-voltage surge protective devices – Part 12: Surge protective devices connected to low-voltage power systems – Selection and application principles
IEC/EN 61643-31：
Low-voltage surge protective devices – Part 31: Requirements and test methods for SPDs for photovoltaic installations
IEC/EN 61643-32：
Low-voltage surge protective devices – Part 32: Surge protective devices connected to the d.c. side of photovoltaic installations – Selection and application principles
IEC/EN 61643-21:
Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signaling networks – Performance requirements and testing methods
IEC/EN 61643-22:
Low-voltage surge protective devices – Part 22: Surge protective devices connected to telecommunications and signalling networks – Selection and application principles
TUV certification per IEC 61643
KEMA certification per IEC 61643
About IEC/EN 62305：
IEC/EN 62305-1 – General principles
This opening part of the IEC/EN 62305 suite of standards serves as an introduction to the further parts of the standard.
It classifies the sources and types of damage to be evaluated and introduces the risks or types of loss to be anticipated as a result of lightning activity.
IEC/EN 62305-2 – Risk management
IEC/EN 62305-2 is key to the correct implementation of IEC/EN 62305-3 and IEC/EN 62305-4.
IEC/EN 62305-2 specifically deals with making a risk assessment, the results of which define the level of Lightning Protection System (LPS) required..
IEC/EN 62305-3 – Physical damage to structures & life hazard
This part of the suite of standards deals with protection measures in and around a structure .
The main body of this part of the standard gives guidance on the design of an external Lightning Protection System (LPS), internal LPS and maintenance and inspection programmes.
IEC/EN 62305-4 – Electrical & electronic systems within structures
This part provides information for the design, installation, inspection, maintenance and testing of a LEMP protection measures system (LPMS) for electrical and electronic systems within a structure, able to reduce the risk of permanent failures due to lightning electromagnetic impulse.
