IEC 61000-4-31-2016 pdf download.Electromagnetic compatibility (EMC) – Part 4-31: Testing and measurement techniques – AC mains ports broadband conducted disturbance immunity test.
This part of IEC 61 000 relates to the conducted immunity of electrical and electronic equipment to electromagnetic disturbances coming from intended and/or unintended broadband signal sources in the frequency range 1 50 kHz up to 80 MHz. The object of this standard is to establish a common reference to evaluate the immunity of electrical and electronic equipment when subjected to conducted disturbances caused by intended and/or unintended broadband signal sources on AC mains ports. The test method documented in this standard describes a consistent method to assess the immunity of an equipment or system against a defined phenomenon. Equipment not having at least one AC mains port is excluded. The power ports not intended to be connected to AC mains distribution networks are not considered as “AC mains ports” and therefore are excluded. This standard is applicable only to single phase equipment having rated input current ≤ 1 6 A; the application of the broadband disturbance to multiple phase equipment and/or equipment with rated input current > 1 6 A is under consideration. NOTE As described in IEC Guide 1 07, this standard is a basic EMC publication for use by product committees of the IEC. As also stated in Guide 1 07, the IEC product committees are responsible for determining whether this immunity test standard is to be applied or not, and if applied, they are responsible for determining the appropriate test levels and performance criteria. TC 77 and its sub-committees are prepared to co-operate with product committees in the evaluation of the value of particular immunity tests for their products.
2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-1 61 , International Electrotechnical Vocabulary (IEV) – Part 161: Electromagnetic compatibility (available at www.electropedia.org) IEC 61 000-4-6:201 3, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement techniques – Immunity to conducted disturbances, induced by radio-frequency fields
3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-1 61 as well as the following apply.
3.1 artificial hand electrical network simulating the impedance of the human body under average operational conditions between a hand-held electrical appliance and earth
[SOURCE: IEC 60050-1 61 :1 990, 1 61 -04-27, modified – A note to entry has been added.]
3.2 auxiliary equipment
AE equipment necessary to provide the equipment under test (EUT) with the signals required for normal operation and equipment to verify the performance of the EUT
3.3 common mode impedance
asymmetrical mode impedance between a cable attached to a port and the reference ground plane (RGP)
Note 1 to entry: This note applies to the French language only.
3.4 coupling network
electrical circuit for transferring energy from one circuit to another with a defined impedance
Note 1 to entry: Coupling and decoupling devices can be integrated into one box (coupling/decoupling network (CDN)) or they can be in separate networks.
3.5 coupling/decoupling network
CDN electrical circuit incorporating the functions of both the coupling and decoupling networks
3.6 coupling/decoupling network for differential mode coupling
CDND electrical circuit incorporating the functions of both the coupling and decoupling networks that injects the signal primarily in differential mode
3.7 decoupling network
decoupling device electrical circuit for preventing test signals applied to the EUT from affecting other devices, equipment or systems that are not under test
3.8 differential mode impedance
symmetrical mode impedance between L and N of an AC mains port
3.9 longitudinal conversion loss
LCL measure, in a one- or two-port network, of the degree of unwanted transverse (symmetric mode) signal produced at the terminals of the network due to the presence of a longitudinal (asymmetric mode) signal on the connecting leads.IEC 61000-4-31 pdf download.