IEC 61000-4-36-2020 Electromagnetic compatibility (EMC) – Part 4-36: Testing and measurement techniques – IEMI immunity test methods for equipment and systems.
This part of IEC 61 000 provides methods to determine test levels for the assessment of the immunity of equipment and systems to intentional electromagnetic interference (IEMI) sources. It introduces the general IEMI problem, IEMI source parameters, derivation of test limits and summarises practical test methods.
2 Normative references
There are no normative references in this document.
3 Terms, definitions and abbreviated terms
For the purposes of this document, the following terms, definitions and abbreviated terms apply.
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3.1 Terms and definitions
reduction in magnitude (as a result of absorption and/or scattering) of an electric or magnetic field or a current or voltage, usually expressed in decibels [SOURCE: IEC 61 000-2-1 3:2005  1 , 3.1 ]
ratio of the high and low frequencies between which there is 90 % of the energy
Note 1 to entry: If the spectrum has a large DC content, the lower limit is nominally defined as 1 Hz (see IEC 61 000-2-1 3  for further details).
[SOURCE: IEC 61 000-2-1 3:2005 , 3.2, modified – The second part of the definition has been made into a note.]
3.1.3 bandratio decades
bandratio expressed in decades as: bandratio decades = log1 0(bandratio) sequence of a limited number of distinct pulses or oscillations of limited duration
Note 1 to entry: When multiple bursts occur, the time between bursts is usually defined.
SOURCE: [IEC 60050-1 61 :1 990 [1 9], 1 61 -02-07, modified – The note has been added.]
3.1.5 conducted HPEM environment
high-power electromagnetic currents and voltages that are either coupled or directly injected to cables and wires with voltage levels that typically exceed 1 kV
[SOURCE: IEC 61 000-2-1 3:2005 , 3.5]
3.1.6 continuous wave
CW time waveform that has a fixed frequency and is continuous
[SOURCE: IEC 61 000-2-1 3:2005 , 3.6]
3.1.7 electromagnetic compatibility
EMC ability of an equipment or system to function satisfactorily in its electromagnetic environment without introducing intolerable electromagnetic disturbances to anything in that environment
[SOURCE: IEC 60050-1 61 :201 8, 1 61 -01 -07.]
3.1.8 electromagnetic disturbance
any electromagnetic phenomenon which can degrade the performance of a device, equipment or system
[SOURCE: IEC 60050-1 61 :201 8, [1 9] 1 61 -01 -05, modified – The last part of the definition, “or adversely affect living or inert matter”, has been removed.]
3.1.9 electromagnetic interference
EMI degradation of the performance of a device, transmission channel or system caused by an electromagnetic disturbance
Note 1 to entry: Disturbance and interference are respectively cause and effect.
[SOURCE: IEC 60050-1 61 :201 8 [1 9], 1 61 -01 -06, modified – Notes 1 and 2 have been removed and a new Note 1 has been added.]
3.1.1 0 shield
<electromagnetic> electrically continuous housing for a facility, area, or component used to attenuate incident electric and magnetic fields by both absorption and reflection.IEC 61000-4-36 pdf download.