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IEC 61000-4-18 Testing – Damped Oscillatory Wave Immunity Test

The IEC 61000-4-18 test standard relates to the immunity requirements and test methods for electrical and electronic equipment, under operational conditions, with regard to:

  1. a)  repetitive damped oscillatory waves occurring mainly in power, control and signal cables installed in high voltage and medium voltage (HV/MV) substations;
  2. b)  repetitive damped oscillatory waves occurring mainly in power, control and signal cables installed  in  gas  insulated  substations  (GIS)  and  in  some  cases  also  air  insulated substations (AIS) or in any installation due to HEMP phenomena.

The requirements of IEC-61000-4-18 testing have been harmonized with the requirements of EN-61000-4-18 testing.

One objective of EN-61000 4-18 testing is to establish the immunity requirements and a common reference for evaluating in a laboratory the performance of electrical and electronic equipment intended for residential, commercial and industrial applications, as well as of equipment intended for power stations and substations, as applicable. Another objective is to establish a common reference for evaluating the immunity of electrical and electronic equipment when subjected to damped oscillatory waves. The test method documented in this part of IEC 61000 describes a consistent method to assess the immunity of an equipment or system against a defined phenomenon.

The purpose of IEC 61000 4 18 testing is to define:

  • test voltage and current waveforms;
  • ranges of test levels;
  • test equipment;
  • test setup;
  • test procedure.

Keystone Compliance is an expert in 61000-4-18 testing. The company focuses significant time and attention on assisting customers determine optimum ways of meeting the requirement of the standard. When challenges arise, our team of expert engineers works with customers to identify the root cause of the failure and mitigate it. This approach is one of the several reason why Keystone Compliance has been named one of the fastest growing companies in the country by INC Magazine.

Please contact Keystone Compliance the next time you need an IEC 61000-4-18 test lab or an EN 61000-4-18 test lab.