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|  DSH 475
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| Marking and instructions* T# ~6 F6 P. n0 C
| 7.10$ _, H x; Y+ ^, p9 {
| 60335-1(ed.3)% n- k' G& E7 L. K& r
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Standard: IEC 60335-1:1991, 3rd Ed.; k$ S) J/ ?( m4 B0 \$ B! L
Sub clause: 7.10
2 m2 T( Z7 |' u" ~. j8 HSheet No. DSH-4754 j, T v! l, w
Subject: Marking and instructions
: \6 k8 K( ~0 l* r. O0 t7 N* E% nKey words: - marking( {8 Z8 B! h% U6 x. J/ D# |
Decision taken at the 40th CTL meeting 2003) `2 r9 O6 O* h0 D
Question:/ r5 P* x3 L$ M! g2 ~4 R$ k3 }$ `
Does a push-push mains switch need to be marked to indicate on/off positions?2 B/ \0 P- @) k
Rationale:
* n) z. d7 ^* ~$ @4 y% z% P0 ]See question.+ x* I* m/ _8 K! y% k
Decision:
5 ~' d+ R9 _, u$ _A push-push mains switch for stationary appliances needs a visual means (e.g. according to$ @; Q! [8 k- \, r' x6 }* n* y
IEC 417 "Graphical symbols for use on equipment") or a lamp to indicate clearly whether
7 b# W: u4 U% Y$ F4 i) |) Zthe switch is in the on/off position. The marking should be on or near the switch.
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发表于 2012-9-12 12:39
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