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2.8.7 Switches and relays: X; n: H+ z! Y B* d- t& ^0 P$ @
A switch in a SAFETY INTERLOCK system shall:
5 M0 f( v+ ?1 J+ |7 j; b− conform to IEC 61058-1, with evaluation for 10 000 operating cycles in accordance with, ^. e+ P0 ~* J5 H- N+ o
7.1.4.4 of IEC 61058-1; or
, b8 a8 E* S1 m% r7 F1 r− comply with 2.8.7.1 and pass the tests of 2.8.7.3 and 2.8.7.4; or R, S& T+ U" G6 G
− pass the tests of 2.8.7.2, 2.8.7.3 and 2.8.7.4.
( J; e b5 Q- dA relay in a SAFETY INTERLOCK system shall:
" n2 N5 X# s# C' }3 d/ V− comply with 2.8.7.1 and pass the tests of 2.8.7.3 and 2.8.7.4; or
, Q/ d* b8 m4 F− pass the tests of 2.8.7.2, 2.8.7.3 and 2.8.7.4.
& I* ?0 q3 _/ `( dCompliance is checked by inspection and by the relevant tests of 2.8.7.1 to 2.8.7.4.
8 \6 R) A8 [. E/ g9 G
/ V7 B' R0 q! @* R* p这一章节只是针对RELAY 是SAFETY INTERLOCK system 里的要求吧? 个人认为用在primary且是FUSE后(还有用在secondary)的话就没有距离要求了, 用在跨接primary, secondary就按照2.10.3的距离要求了.. 之前有遇见relay用在FUSE后的情况, 是么有要求距离的. |
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