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一行白鹭上青天 发表于 2021-5-28 17:08
6 m3 p2 g# a0 Z" G2 g0 m. v" ^有的报告里面列了，有的，没有列，不是同一家机构。, o" S# D0 S e& ~
& x* {1 ?) X. v% v请问列不列入CDF有没有什么依据？水压开关也是开 ...
2 W/ g- s0 g1 {1 X2 ]# Nod 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& p* N9 V/ |" F+ I/ R* `+ A
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* y3 t& I' h0 P* D7 T7 }6 t& w" e
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”.; C* ?2 V; r; B2 W3 X& ~3 M$ U: n
b) Components, which have specific requirements in the end product standards.
2 K$ a+ c. L% e5 N7 kc) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A
$ m. _! d) h6 z, e( {# n5 |0 hd) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability)5 C/ W9 |& {& [! t
e) Professional judgment of the CBTL/NCB: P6 b" M% r) L1 |* q" @8 {) E
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发表于 2021-5-27 11:20
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发表于 2021-5-30 11:36
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[s:83][s:83]
:lol为啥不列呢？