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一行白鹭上青天 发表于 2021-5-28 17:08
* _* Y$ U" m5 r0 T/ V" u! a# q有的报告里面列了,有的,没有列,不是同一家机构。5 ], o! p, }* T# G/ {+ D) K
& ]& j+ w7 x* T7 S/ r0 t请问列不列入CDF有没有什么依据?水压开关也是开 ... % j5 A" _) I) f4 v' e
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, Z; E/ G F5 N9 r f& b, l
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 Z3 S3 {2 H6 J v2 R
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”.
7 g) j3 e# p7 N5 I& ]9 L7 |b) Components, which have specific requirements in the end product standards.
9 { ~2 N) R- Q5 [% S6 f% oc) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A% |- g0 @& S6 `1 u8 F
d) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability)
# V% v w8 q0 B! z4 We) Professional judgment of the CBTL/NCB
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