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2.8.7 Switches and relays1 O" m' ^3 s1 X, a
A switch in a SAFETY INTERLOCK system shall:5 b p9 H! B* @! M( n' P3 i7 W- v
− conform to IEC 61058-1, with evaluation for 10 000 operating cycles in accordance with1 ]4 `5 E" [7 |: ^
7.1.4.4 of IEC 61058-1; or
* y9 {5 y+ Q% \( E8 [5 ~− comply with 2.8.7.1 and pass the tests of 2.8.7.3 and 2.8.7.4; or) U. f! ] F8 m6 x ?2 r
− pass the tests of 2.8.7.2, 2.8.7.3 and 2.8.7.4.6 f! C( F3 J. o5 y6 l' I
A relay in a SAFETY INTERLOCK system shall:% R; x4 @' \3 C# d6 T! `' A; N& g
− comply with 2.8.7.1 and pass the tests of 2.8.7.3 and 2.8.7.4; or
: m; Q9 @8 f V& m( h) U2 B1 Q% i− pass the tests of 2.8.7.2, 2.8.7.3 and 2.8.7.4.
$ i1 m, N Z* o7 XCompliance is checked by inspection and by the relevant tests of 2.8.7.1 to 2.8.7.4.' b& r9 m* e# Q% Y1 u: D
$ Z; G! }' e/ e8 ~/ C6 p$ ^! z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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