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一行白鹭上青天 发表于 2021-5-28 17:08
; y T( e! ~( q0 w2 U有的报告里面列了,有的,没有列,不是同一家机构。* `6 w3 q" b) K0 g% S5 S6 Z+ ~: X
, c) h E; d& ?5 \/ |请问列不列入CDF有没有什么依据?水压开关也是开 ... - [, m! \- M2 ` ]$ r* w3 l$ K
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1 `: I% h6 S1 c, e: N4 ?% g {
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& n; x" C& E/ w" d
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”.9 [( Y2 `) [% G, h5 u
b) Components, which have specific requirements in the end product standards.( p7 d/ v. m: k, w3 z7 _
c) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A
1 ` ? y6 O( }! D9 gd) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability)
v. d1 b: \* _9 Ke) Professional judgment of the CBTL/NCB
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