|
|
求组各位EMC大大~~
: A; X, ~+ [+ @( Y! t* Z8 X9 J# [" x
a7 h" z9 M1 P2 V
章节6里面A simplified test method is permitted for equipment that undergoes minor changes or updates,
+ A9 P+ o" d: b- h0 g6 S1 Lprovided that, in previous full compliance tests, it has been shown to have current emissions
% _% q3 x4 ?: fbelow 60 % of the applicable limits and the THD of the supply current is less than 15 %. The$ j/ b& I0 o6 e& C& s2 e
simplified test method consists of verifying that the updated equipment has an active input: q8 Z& M( c$ k b
power within ±20 % of that of the originally tested product, and that the THD of the supply. q4 K' C) B: ^7 I- `
current is less than 15 %. Products that fulfill these requirements are deemed to comply with( L7 b; l z3 E$ I
the applicable limits, but in case of doubt the result of a full compliance test according to# k! J' T1 P7 C. n+ h# @# K
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。
- D$ R* q& W( ]0 Y3 |/ ?我之前完成测试时满足谐波低于60%，THD低于15%。* T. J* W1 a+ ?8 u( K7 Q+ V
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？
- l# W; N8 N$ g! w. e% B9 P1 E3 d$ L K2 s5 f# ]' t
. v$ b( a' @; |; x6 q! U |
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2015-1-30 11:40
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡