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一行白鹭上青天 发表于 2021-5-28 17:08
. i' D% J1 \/ B1 ?- P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 ...
0 \1 y3 b( ]& l; uod 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6 Z! k) G2 n3 g
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! s9 {2 L4 K ] x
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”.% q5 }# m5 g- v4 L1 o- A8 E& V; S
b) Components, which have specific requirements in the end product standards.
5 t* J% e1 }* p. fc) Components, which have requirements in the National Standards included in the evaluation% r9 u# F- Z. A% A
! l4 h' M0 _' B* t) jd) Materials, which are critical to maintain compliance with the standard (such as corrosion requirements, flammability). L* E$ q5 P- t/ L3 B
e) Professional judgment of the CBTL/NCB2 C6 {$ k% Q/ Q; d: N8 {
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