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一行白鹭上青天 发表于 2021-5-28 17:08
; e8 n9 B a; z" H; m, S有的报告里面列了,有的,没有列,不是同一家机构。
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1 o; K. e& J* h s3 [. R请问列不列入CDF有没有什么依据?水压开关也是开 ... ( R2 L0 z/ i: D# U; q
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
9 R1 Q" V4 P8 B4 E+ Y% Y) i) ~ m% G4.7.2 The information to be included in the critical components and materials table shall be based on the following ~/ P+ t. J; l/ }' {9 Z4 Q' g' q' y7 H
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”.
# |# L" @* U" k2 ~- Xb) Components, which have specific requirements in the end product standards.
6 g- j1 x/ J; u) A0 d# nc) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A
& l- @1 c9 b; i; M" x) O, o T1 id) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability)
% I5 _7 }# V Q5 T1 ne) Professional judgment of the CBTL/NCB
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