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求组各位EMC大大~~, j' n9 W0 H+ \) C# r9 m" t) y+ R
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# {, x7 z/ C! R# R$ N O章节6里面A simplified test method is permitted for equipment that undergoes minor changes or updates,
) b8 v& G9 c; G( e- B/ V+ xprovided that, in previous full compliance tests, it has been shown to have current emissions4 m) [) t- |( Y9 Y0 Z/ C+ W
below 60 % of the applicable limits and the THD of the supply current is less than 15 %. The
1 U' ~* v8 O5 C. n8 O& }- z1 |simplified test method consists of verifying that the updated equipment has an active input
$ R( u7 _; A2 m D, k* q! u$ Ipower within ±20 % of that of the originally tested product, and that the THD of the supply1 w: C0 ^+ N' d7 j
current is less than 15 %. Products that fulfill these requirements are deemed to comply with
3 ~( {, c% Z8 A' r/ l' w ithe applicable limits, but in case of doubt the result of a full compliance test according to' N6 I4 a8 }4 f7 W9 S( X! c2 m
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 S& b% x( ^3 A) Y我之前完成测试时满足谐波低于60%，THD低于15%。) U- a ]) ~! r2 G3 @
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？+ i1 Y+ Z1 E" g3 |! z2 P9 w, q+ Q
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发表于 2015-1-30 11:40
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