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在跟认证机构讨论条文的时候,产生争议
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d/ j% e( X8 _$ u* s想请问以下条文该如何理解:
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9 E$ Z ~, s W# l: M( ?5 }Limits of a.c. output interference voltage
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The limits in Tables 1 and 2 apply.
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% |9 W: E/ z" G( |$ qAn allowance of +14 dB is permitted for conducted disturbances at the output of the UPS as
0 ^$ N$ O) c( e/ @5 `specified in Tables 1 and 2, except for C3 greater that 100 A where no increase is allowed.
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! H2 S+ K3 J4 H# ?* G" K1 O/ @These limits only apply to UPS where the output cable, as declared by the manufacturer, in5 ]8 |4 v1 J5 v6 |9 W7 I0 U
his users’ instructions, can exceed 10 m in length.
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The values shall be measured using a voltage probe in accordance with A.2.3.
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我的理解是,4 [& _ W5 l' d& }- [# U
) L* p" s" F) d1 q: Y) P8 T- z8 h. k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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测试限制值的部分:0 C# v2 a7 n2 f/ R& @4 h
C3类大于100A的机器,限制值仍是使用表1和表2的限制。# v0 u4 ^4 f8 W5 ^2 v4 o+ o4 p r
* r3 X, {1 Y$ w其他类别C1或C2或C3类小于100A的,限制值可以放宽14分贝。- p* e; O; S+ t
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以上理解正确吗? |
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