What is IEC 61439-2?

IEC 61439-2 is an international standard that defines specific requirements for low-voltage switchgear and control gear assemblies. It provides guidelines for the design, testing, and performance of these assemblies to ensure their safe and reliable operation. This standard is a crucial reference for manufacturers, designers, and users of switchgear and control gear assemblies.

Design Requirements

One of the key aspects covered in IEC 61439-2 is the design requirements for switchgear and control gear assemblies. This includes the selection of appropriate materials, electrical clearances, temperature rise limits, protection against electric shock, and mechanical strength. These requirements ensure that the assembly can withstand the expected electrical stresses and environmental conditions without compromising safety or performance.

Testing and Performance

IEC 61439-2 also sets out detailed testing procedures to assess the performance of switchgear and control gear assemblies. These tests include verification of temperature rise, dielectric properties, short-time withstand current capability, and other relevant characteristics. By conducting these tests, manufacturers can demonstrate compliance with the standard and provide assurance to end-users regarding the reliability and safety of their products.

Compliance and Certification

Once a switchgear and control gear assembly has been designed and tested according to IEC 61439-2, it can be certified as compliant with the standard. Certification bodies will examine the manufacturer's documentation, test reports, and technical files to verify compliance. This certification provides confidence to users that the assembly meets the required safety and performance criteria. It also facilitates the installation and integration of switchgear and control gear assemblies within various industrial and commercial applications.