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一行白鹭上青天 发表于 2021-5-28 17:08
3 ]5 _/ U5 }! H; c2 n" D有的报告里面列了,有的,没有列,不是同一家机构。( F# A+ b |; l# {1 u6 w! T8 E9 R; R
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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 ... : M/ G, e& ?8 v6 U/ d8 R
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
! H3 y2 y+ m- _& o4 g! W) I4.7.2 The information to be included in the critical components and materials table shall be based on the following ~/ P+ t. J; l/ }' {9 Z- w4 }7 i- a8 S8 c3 E' G
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”.
* M# M" N D, Db) Components, which have specific requirements in the end product standards.
# C8 V/ [- Y0 \c) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A
5 F. o/ s# V1 \. c" n' [8 K2 [d) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability); J2 v" c* K% j1 K, @
e) Professional judgment of the CBTL/NCB% W0 J+ J) {: E8 v
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