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一行白鹭上青天 发表于 2021-5-28 17:08
3 m6 L0 I; \8 Q& h有的报告里面列了,有的,没有列,不是同一家机构。2 _ h' b! V+ G/ `2 i/ W
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请问列不列入CDF有没有什么依据?水压开关也是开 ...
* n8 C% }( @1 n1 q3 |+ Fod 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
& _( W/ @$ f% k$ o1 p* ~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
' a# x7 r3 C% n( }% H; c* H% sa) 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 ]5 i* p' A mb) Components, which have specific requirements in the end product standards., Y0 L! X: l3 ~0 \! n0 m& a1 q
c) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A. [7 c7 _( P( i/ F
d) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability): N, W& G& S( J5 ~# o7 U0 ^, R
e) Professional judgment of the CBTL/NCB+ d+ G h4 Z8 b! b, ~
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