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|  DSH 284
2 q9 c* S' u0 t& T* J7 K; y. {: @) q# ]
| Power limiting protection* J+ D( M+ h: g# z, T
| 7.1, last paragraph
S! @# }8 |. ?5 C4 U; V. x | 60065(ed.5)
% x4 G; r! x, F$ P |
" K: `$ j8 I; Z# pStandard: IEC 60065 Ed. 5 Clause: 7.1, last0 d+ _: C9 ?0 v4 \! t; C+ Z
paragraph
! n" I' {+ F& k% N0 y- jSheet n. 284
/ {& s4 t' x0 TPage 1(1)" l/ ~; p+ m% @1 @' J- p- G
Subject: Power Limiting Protection Key words:0 i Y- P4 q7 O1 i+ \2 y
- Fuse-link0 v, `) G" G& @. O3 H7 B
- Fusing resistor
, n+ m5 b4 s9 F- Thermal release7 v5 G3 k) d4 _: b+ m
Decision n. 23/368 p% Y7 ^3 d, u$ q
taken at 36th
% l1 o6 U `7 H* imeeting/1999
/ w8 r( u$ `# X8 S, F" sQuestion:
" ~' J4 v$ u N! P6 d. CDoes the wording:
4 m/ T2 N3 }1 {- }4 B) q* R"Fuse-links, fusing resistors and thermal releases affecting the safety of the apparatus
6 j# e$ z+ R; Y0 g% d+ A" T$ {3 Bshall not operate during the test"
! s( [- W) I Q/ A4 N0 ?mean that:
6 j( R+ t2 r+ e9 Pa) if a fuse-link, fusing resistor, or thermal release operates during the test, it shall be
# V0 z/ k% u9 {' Q4 C2 U bdefeated and the test continued.
0 I% D7 E5 n. k$ n |9 w/ W3 ob) In amplifiers, electronic protection circuits activated by voltage, current, or temperature9 U- P( t! ^0 W. j; b8 b. M4 g3 j
sensing shall be defeated if they operate during normal operation ( 1/8 maximum output)
6 ^4 H# c3 [2 \5 X( R* rDecision:+ a- g" O% N- ]$ h' }& z
In amplifiers, electronic protection circuits activated by voltage, current, or temperature
" P) H. V3 [* Usensing shall be defeated if they operate during normal operation ( 1/8 maximum output)
0 ^4 K" R1 H( j o9 s" If a fuse-link, fusing resistor or thermal release operates during the test which is under& d h3 p- F/ P6 I M# |
normal operating conditions than the equipment does not fulfil the requirements."
$ B2 e% Q' x5 I, S# B& ~ x- l# O0 A1 X' V3 v) E; k' q
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发表于 2012-11-8 19:15
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