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一行白鹭上青天 发表于 2021-5-28 17:08
% x% {% Y7 p1 S- f有的报告里面列了,有的,没有列,不是同一家机构。
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8 k5 A/ H7 e2 c请问列不列入CDF有没有什么依据?水压开关也是开 ...
8 t7 h: o7 D+ X |3 Cod 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
3 f4 `- t; h4 C3 Y+ [0 Y8 ~$ C& T4.7.2 The information to be included in the critical components and materials table shall be based on the following ~/ P+ t. J; l/ }' {9 Z9 X# I: {) M% k: X1 [
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”.
4 i- K$ N) K( o8 t' `7 ab) Components, which have specific requirements in the end product standards.
; T- H6 o! o9 A y: u6 Oc) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A
! {; u |- P( o) ld) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability)
* @+ M* `- m5 k: q1 ]& s; ne) Professional judgment of the CBTL/NCB$ g' d' D2 E. u, a6 x5 }
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