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一行白鹭上青天 发表于 2021-5-28 17:08
4 E2 @- x9 _" j有的报告里面列了,有的,没有列,不是同一家机构。
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G# b8 B# \% d0 ?* P请问列不列入CDF有没有什么依据?水压开关也是开 ...
9 {9 j' r0 W9 r P/ V |' 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
9 G7 C5 F2 n* u; o; h3 l4.7.2 The information to be included in the critical components and materials table shall be based on the following ~/ P+ t. J; l/ }' {9 Z
- J4 w+ Y- |7 P; Ja) 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”.2 N8 J1 H( ^$ H, l' Q) A
b) Components, which have specific requirements in the end product standards.; c% H; {+ }: `' {7 m: z
c) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A
; I$ E! _2 k2 r5 O, @9 Sd) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability)
4 Z, X8 ^4 l( B/ M. Fe) Professional judgment of the CBTL/NCB
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