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|  DSH 284
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" i Z" \8 p" l" D) O2 X$ K | Power limiting protection
& G: f! x0 }) C7 n | 7.1, last paragraph% h6 W C( f7 D+ G) ~; c8 V1 Z
| 60065(ed.5)* }% I% h( T, |! A3 g! m( X
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Standard: IEC 60065 Ed. 5 Clause: 7.1, last
& I1 u+ ~7 ]. X4 \# A4 Hparagraph
% g' P7 b' U1 k: uSheet n. 284
- o. J: H; o4 Q0 q6 DPage 1(1)9 i, P8 I! [7 m1 P, v* R
Subject: Power Limiting Protection Key words:4 h1 P4 q z$ \% @$ {: \: y
- Fuse-link9 ]; g' F* `9 I* a2 p: o' R' r5 N% J
- Fusing resistor
: x- i- U5 P# l( }- j5 o- Thermal release
: y2 e3 W; T1 a: z& {! _Decision n. 23/36
1 m. F/ j% ^% r+ htaken at 36th( X7 E+ L1 ?6 F2 D" c
meeting/1999) n/ r. Y+ Y0 p! N$ \3 V8 ^+ k5 r
Question:
! [+ g( Q% X# GDoes the wording:% @/ d6 U t) m4 _6 Q6 F% K4 C7 T4 E8 g
"Fuse-links, fusing resistors and thermal releases affecting the safety of the apparatus6 {7 E9 n, l+ t+ a$ x" @; ?! @
shall not operate during the test"
4 U/ e& B. ~& [ f, G) w4 amean that:' K& E- L/ j' m
a) if a fuse-link, fusing resistor, or thermal release operates during the test, it shall be/ @+ w# u2 d3 u* x+ @4 e( X
defeated and the test continued.5 k# z. `3 {% E. t! Q! F
b) In amplifiers, electronic protection circuits activated by voltage, current, or temperature
6 Q/ v1 f' M8 jsensing shall be defeated if they operate during normal operation ( 1/8 maximum output)% ~' p. C7 y; R% J% c9 ^) e) m
Decision:2 U0 k, h3 G9 Z6 m9 P
In amplifiers, electronic protection circuits activated by voltage, current, or temperature9 r1 o& W# z$ ~2 a0 s1 r$ G
sensing shall be defeated if they operate during normal operation ( 1/8 maximum output)
/ ?( K! ~$ @+ c+ o" If a fuse-link, fusing resistor or thermal release operates during the test which is under
, x/ r5 [# O' S7 Z. C( M8 Q3 A! jnormal operating conditions than the equipment does not fulfil the requirements."! p' O5 g9 j7 h/ x$ ~ d! c* O
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发表于 2012-11-8 19:15
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