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一行白鹭上青天 发表于 2021-5-28 17:08! s, A! D% f: l' f/ b
有的报告里面列了,有的,没有列,不是同一家机构。
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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 ...
& |6 u1 S8 C: h- F" Q' 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
0 @& j8 H M7 m _1 ]: Z4.7.2 The information to be included in the critical components and materials table shall be based on the following ~/ P+ t. J; l/ }' {9 Z& i$ H" f3 ]* q
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 p* {" [1 Q$ R- P3 Hb) Components, which have specific requirements in the end product standards.
4 `6 Q2 B( u1 ^- D4 x3 Kc) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A# ]) p( G" ~& v
d) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability)
2 x4 ]; {$ \: K: T% { ve) Professional judgment of the CBTL/NCB
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