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一行白鹭上青天 发表于 2021-5-28 17:08
, I; p; t. w3 o1 f: v有的报告里面列了，有的，没有列，不是同一家机构。6 d4 h3 m G- n# Y& r; u
: `$ V+ v8 f% S3 D. B: M
请问列不列入CDF有没有什么依据？水压开关也是开 ...
od 2020里有定义，但更多的是主观因素，所以有的元件理解起来会有会有偏差8 H' S6 n; Q C" O7 M
4.7.2 The information to be included in the critical components and materials table shall be based on the following ~/ P+ t. J; l/ }' {9 Z. @$ | r$ Y8 s# X
a) The CTL clarification: “A safety critical component can only be determined upon a preliminary examination/evaluation of the electrical diagram/design/construction. When the design of the product is such that a determined component, in case of failure, can compromise the safety aspect, this component is defined as “safety critical”.- \6 M1 }8 A: B# \; A4 L* }
b) Components, which have specific requirements in the end product standards.
, V+ f* C* N, dc) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A' s/ [9 s( h% u# ~0 o4 h
d) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability)
5 Z9 s4 X5 B/ S2 l: a( [e) Professional judgment of the CBTL/NCB1 Q0 u0 n8 c% H# y3 {" ^
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发表于 2021-5-27 11:20
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:lol为啥不列呢？
[s:83][s:83]
发表于 2021-5-30 11:36