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|  DSH 284. ]6 [! y% I( X
+ o% h. d7 F- r* `1 B
| Power limiting protection
8 P: i W+ ?; T | 7.1, last paragraph( d; J( ]- y6 u7 {3 j1 U
| 60065(ed.5)9 l4 g w1 W) e4 D- M/ M6 i
|
" x# p, @9 {/ o) G) xStandard: IEC 60065 Ed. 5 Clause: 7.1, last
0 D8 U2 H, i. T8 P) Pparagraph% b r8 j6 T; F
Sheet n. 284# k, M: g2 `2 L r/ D6 z
Page 1(1)
7 A4 m! l w) ~5 A' `Subject: Power Limiting Protection Key words:
$ _+ M' K$ S% Q( H) m- Fuse-link
v: `0 h/ T; J8 E- Fusing resistor' m! } [8 p2 V' r" r% s( y3 {; R
- Thermal release
/ y3 a. c( |1 W+ o Q5 rDecision n. 23/364 Y* s" C+ C U B
taken at 36th% b- u! H! s7 Y# q4 Y3 h) m! _6 g1 d
meeting/1999
$ B8 L, J z) L- F1 \0 D( K7 BQuestion:, m3 G" h2 `! d- V: W. C% p$ Y
Does the wording:
1 T( [; f3 j- x- F% D. ]! h# u0 T3 b"Fuse-links, fusing resistors and thermal releases affecting the safety of the apparatus# T9 A7 z2 K% A3 t' z# R+ P; M9 E, N
shall not operate during the test"
: A% h4 W$ ]+ d- f" _mean that:. k3 g: X2 |0 o# m, {( l0 i/ A V
a) if a fuse-link, fusing resistor, or thermal release operates during the test, it shall be
5 k% C' Y" E7 H; J. j+ {& S5 Idefeated and the test continued.) {3 D6 F/ R3 f) ?
b) In amplifiers, electronic protection circuits activated by voltage, current, or temperature4 o, u% u6 K) M: B
sensing shall be defeated if they operate during normal operation ( 1/8 maximum output)
5 v. }7 b& @3 G* J6 G5 E4 o: ~Decision:
" i% h; E& i9 G, W* G0 fIn amplifiers, electronic protection circuits activated by voltage, current, or temperature* [' i& \# H6 l$ I$ h; x8 i
sensing shall be defeated if they operate during normal operation ( 1/8 maximum output)$ n+ }; h; x* G0 h
" If a fuse-link, fusing resistor or thermal release operates during the test which is under
( Q% \- ^" H3 T. b( C/ u' Q7 dnormal operating conditions than the equipment does not fulfil the requirements."
6 B: O4 o! }6 S6 W2 B4 q* V0 I* m6 A3 S" k
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发表于 2012-11-8 19:15
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