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“IEC 61000-4-4”的版本间差异

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{{short description|Electrotechnical immunity standard}}
==EFT高压脉冲群==
'''IEC 61000-4-4''' is the [[International_Electrotechnical_Commission|International Electrotechnical Commission's]] immunity standard based on electrical fast transient (EFT) / burst [[Transient (oscillation)|transients]]. This publication is part of the greater IEC 61000 group of standards which is covered under IEC TR 61000-4-1:2016.<ref>{{cite web|url=https://webstore.iec.ch/publication/24660|title=IEC TR 61000-4-1:2016 - IEC Webstore - electromagnetic compatibility, EMC, smart city|website=webstore.iec.ch}}</ref> The current third version of this standard (2012) replaces the second version (2004).<ref>{{cite web|url=https://webstore.iec.ch/publication/4222|title=IEC 61000-4-4:2012 - IEC Webstore - electromagnetic compatibility, EMC, smart city, rural electrification|website=webstore.iec.ch}}</ref> The goal of this standard is to establish a common and reproducible reference for evaluating the immunity of electrical and electronic equipment when subjected to electrical fast transient/bursts on supply, signal, control and earth ports.<ref>{{cite web|url=https://keystonecompliance.com/iec-61000-4-4/|title=IEC 61000-4-4 Fast Transient/Burst Testing Lab with EMC / EMI Experts|website=Keystone Compliance}}</ref>
IEC 61000-4-4是国际电工委员会的抗扰度标准,基于电快速瞬变(EFT)/突发瞬变。该出版物是IEC 61000-4-1:2016涵盖的更大的IEC 61000标准组的一部分。
 
==EFT测试等级==
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| colspan="3" |''x can be any level specified in product specific standards''
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''Note: This tables purpose is a quick overview. It does not contain the same level of detail as the official IEC 61000-4-4.''<br><br/>The cause of electrical fast transients (EFT) come from an arc when mechanical contact is open due to a switching process.<ref>{{cite web|url=http://www.teseq.com/standards/iec-en-61000-4-4.php|title=Teseq: IEC/EN 61000-4-4|website=www.teseq.com}}</ref> Given the fast rise time and voltage of these pulses having a solid [[Ground (electricity)|ground]] connection is important during the testing process.<ref>{{cite web|url=https://transientspecialists.com/collections/en-iec-61000-4-4|title=EN IEC 61000-4-4 - EFT/Burst Immunity Generator Rentals|website=Transient Specialists}}</ref> Testing for EFT often requires a capacitive coupling clamp (CCL), which is employed to add disturbances to nominal signals.<ref>{{cite web|url=https://www.researchgate.net/publication/224344516|title=Modeling the IEC 61000-4-4 EFT injection clamp - Request PDF|website=ResearchGate}}</ref>
== See also ==
*[[List of common EMC test standards]]
*[[List of IEC standards]]
*[[List of EN standards]]
== References ==
{{reflist}}
[[Category:International Electrotechnical Commission]]

2020年7月2日 (四) 18:27的版本

EFT高压脉冲群

IEC 61000-4-4是国际电工委员会的抗扰度标准,基于电快速瞬变(EFT)/突发瞬变。该出版物是IEC 61000-4-1:2016涵盖的更大的IEC 61000标准组的一部分。

EFT测试等级

EFT test levels (IEC/EN 61000-4-4)[1]
Power ports, earth ports (PE)
Level Voltage peak (kV) Repetition frequency (kHz)
1 .5 kV 5 or 100 kHz
2 1 kV 5 or 100 kHz
3 2 kV 5 or 100 kHz
4 4 kV 5 or 100 kHz
x special special
x can be any level specified in product specific standards