标题: Conducted emissions test [打印本页] 作者: raymod 时间: 2015-2-3 08:38 标题: Conducted emissions test 在跟认证机构讨论条文的时候，产生争议0 v! w/ E# i2 p2 @5 D. e
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想请问以下条文该如何理解：; x9 y/ M1 d6 D9 @ z: A. q
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Limits of a.c. output interference voltage) ~4 I! _4 Z$ S9 z3 t& u" j
" W( o% P# Z. s% u% ?* T6 z+ kThe limits in Tables 1 and 2 apply.6 n2 B0 A$ l) r# b1 p
: y4 A3 o; c& OAn allowance of +14 dB is permitted for conducted disturbances at the output of the UPS as + Y, `8 a7 E) }specified in Tables 1 and 2, except for C3 greater that 100 A where no increase is allowed. 7 L. }; u$ |. `/ f 0 S$ {) a$ |+ p+ U! N/ A: I- \These limits only apply to UPS where the output cable, as declared by the manufacturer, in& r5 T9 s# |- |* R! |; T- I. {) n
his users’ instructions, can exceed 10 m in length. & P2 V) O- _9 J' d" | Z# R * y" \) v; Q- R9 f* d% u! s, PThe values shall be measured using a voltage probe in accordance with A.2.3. 0 G7 T- g* \3 ~7 q# ^6 w$ M2 f! Y/ ^; L5 i" o" T9 d
我的理解是，! O# s( ^( w! ]+ ^3 }+ a
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此项测试只有在输出电缆线，超过10米才需要进行，如果在10米内，就不需要测试。 . P+ o3 a7 k8 C2 Y. j( s9 T4 I+ `+ \
测试限制值的部分： 8 K' b4 V# ?1 ~- ZC3类大于100A的机器，限制值仍是使用表1和表2的限制。 $ q2 m7 M7 C9 K1 x5 N& \+ o # P5 q, `) i; f9 k j/ T: _2 N# c其他类别C1或C2或C3类小于100A的，限制值可以放宽14分贝。; I) w$ S$ m- r3 \+ e R$ ]. d
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以上理解正确吗？