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一行白鹭上青天 发表于 2021-5-28 17:08
" V" W0 i: R! E& b/ z有的报告里面列了,有的,没有列,不是同一家机构。
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5 L0 U( ?& F" {/ }' h请问列不列入CDF有没有什么依据?水压开关也是开 ...
3 w7 N! m& G9 I4 r4 |+ z/ V5 Xod 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 t/ U3 |1 b/ F' i. x) b4.7.2 The information to be included in the critical components and materials table shall be based on the following ~/ P+ t. J; l/ }' {9 Z8 K# x( r& i1 G. e% t- ?
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”.
+ s. F9 W$ V3 ^9 {: ab) Components, which have specific requirements in the end product standards.
8 J, \* K, y; c2 _9 T2 C! sc) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A
8 J5 I8 r7 z# F& ]$ qd) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability)# {( S$ f7 X$ n4 i' a9 R
e) Professional judgment of the CBTL/NCB r" H0 t* t$ o/ |* @2 L. N( K6 M
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