I read in !emc-pstc that Patrick Lawler wrote (in
) about 'Is there an
immunity spec complement to the EN61000-3-3 flicker emissions spec?', on
Wed, 30 Jan 2002:
>In a recent posting, someone commented on the possiblity of 'flicker' emissions
>(controlled by EN61000-3-3) causing a disturbance in 'victim' equipment.
>
>Would EN61000-4-11 (Voltage dips, short interruptions and voltage variations)
>be
>an immunity spec complement to EN61000-3-3? Or is EN61000-4-14 (Voltage
>fluctuations) more appropriate?
They are complementary.
>What is the difference between the two?
Section 11 deals with disturbances of three types of voltage/time
characteristic. Section 14 deals with disturbances of a fourth type.
Of course, unless the relevant EMC product standard calls up section 11
or 14, you do not need to consider them.
--
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
After swimming across the Hellespont, I felt like a Hero.
PLEASE do NOT copy news posts to me by E-MAIL!
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