IEC61000-3-2中章节6的简化测试怎么理解？

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& z! e( F4 m  K& K/ R& a# W章节6里面A simplified test method is permitted for equipment that undergoes minor changes or updates,
provided that, in previous full compliance tests, it has been shown to have current emissions
below 60 % of the applicable limits and the THD of the supply current is less than 15 %. The
% |# G0 a" ~5 @; }simplified test method consists of verifying that the updated equipment has an active input
0 g, W/ b; U4 b' m! P9 Jpower within ±20 % of that of the originally tested product, and that the THD of the supply
( u1 y/ m( |$ X! w/ W9 @) scurrent is less than 15 %. Products that fulfill these requirements are deemed to comply with
the applicable limits, but in case of doubt the result of a full compliance test according to
: Z8 l9 ]* Y, r2 Y- n  A  M: BClauses 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。
) ?+ G% M! k) l3 p% V# h/ R$ B) l( g我之前完成测试时满足谐波低于60%，THD低于15%。
- K& y! P6 `  Q' S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？

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& ~! i3 }6 P$ W. R5 @/ _5 F# H