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求组各位EMC大大~~7 k, l8 w3 N; D
% a9 ]8 x; w& |' I$ X& c
7 c7 L* v+ B- O- h; c O章节6里面A simplified test method is permitted for equipment that undergoes minor changes or updates,
5 |2 I o1 L- B& wprovided that, in previous full compliance tests, it has been shown to have current emissions: ]8 n; }. S- y" ?
below 60 % of the applicable limits and the THD of the supply current is less than 15 %. The
. g; Z1 _$ f2 b# I9 z7 I Csimplified test method consists of verifying that the updated equipment has an active input- w7 @) G( L! ]) t s7 Q9 x
power within ±20 % of that of the originally tested product, and that the THD of the supply
1 H: A4 y& S6 [0 Mcurrent is less than 15 %. Products that fulfill these requirements are deemed to comply with
8 Z# s* X, ]" ~the applicable limits, but in case of doubt the result of a full compliance test according to7 N( W' Z, ` t% K+ w
Clauses 6 and 7 takes precedence over this simplified method.这里是指测试产品之前经过完整的测试，假如对产品进行了细微的升级。9 B( s+ Q3 ^# m0 D/ y2 q" k* ^+ }
我之前完成测试时满足谐波低于60%，THD低于15%。4 H0 A2 r9 `3 v5 @4 d7 P) {. m
那么我升级之后的产品如果功率在原来的±20%之间，THD测试值仍低于15%。我就认为是符合要求的？. H$ h2 J; i6 }" `! Z
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发表于 2015-1-30 11:40
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