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在跟认证机构讨论条文的时候,产生争议! ?$ R) u$ a3 F
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想请问以下条文该如何理解:6 G+ V0 r' v5 h6 ]
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Limits of a.c. output interference voltage5 M/ t; ~, _# `, q' E% V( N
5 W7 \/ |2 P! zThe limits in Tables 1 and 2 apply.4 Z" A" O/ `" |. }1 Y
+ J* R0 w2 p( I# `3 uAn allowance of +14 dB is permitted for conducted disturbances at the output of the UPS as: c8 X" t" n' \7 o
specified in Tables 1 and 2, except for C3 greater that 100 A where no increase is allowed.
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+ c3 ^; A1 r1 f& ?! \3 m+ n4 eThese limits only apply to UPS where the output cable, as declared by the manufacturer, in
0 I1 W9 V B9 Z! s( Y/ qhis users’ instructions, can exceed 10 m in length.
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* M% |- Z! } e% P. W! {8 FThe values shall be measured using a voltage probe in accordance with A.2.3.& Z% l' \/ d* G. x, A
& N, T, Z6 W& o4 V1 z; y: s我的理解是,! H5 i; h, t. J) l+ f; J6 m
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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。
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S. K6 ~, O3 D测试限制值的部分:& a! q8 U; q4 o1 \* s+ c
C3类大于100A的机器,限制值仍是使用表1和表2的限制。( W# }5 w3 A6 ^5 }. s: R# g
8 j/ Y- f1 v. c' S2 E其他类别C1或C2或C3类小于100A的,限制值可以放宽14分贝。. a* ^* C) }* Q/ l1 d: {. R
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以上理解正确吗? |
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