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Standard: IEC 60065 Ed. 5 Clause: 7.1, last
& S1 a* X% u* xparagraph
% J; W) S n6 r. M D0 x! K' U# ^Sheet n. 2844 i) T$ J/ ~! t
Page 1(1)
+ S$ s/ B+ l) f; lSubject: Power Limiting Protection Key words:7 Y% Z- y6 v. E h* g
- Fuse-link
; y+ s# A; @( v1 k( d* h- Fusing resistor1 e* X4 h5 K( I0 t
- Thermal release% `$ v6 N7 A# B F
Decision n. 23/36! G3 [1 f" R+ G8 W) }; s% j
taken at 36th+ w8 c0 y% [- m
meeting/1999* {7 O# H, d4 W7 L/ k
Question:- }9 T, s, \# _% i
Does the wording:/ d( W, J8 u1 P1 C; Y- ^$ C
"Fuse-links, fusing resistors and thermal releases affecting the safety of the apparatus" B! U* c* Q* K) S+ j. ?' E; Q
shall not operate during the test"
7 d( G2 M5 ^9 Z( Y& c4 ^mean that:
+ _ a" P- b5 M3 Z' [a) if a fuse-link, fusing resistor, or thermal release operates during the test, it shall be( E# x9 S( T1 A' s, H; @- n) h: Y
defeated and the test continued.' H m. J5 p7 a) b1 Q3 N1 u
b) In amplifiers, electronic protection circuits activated by voltage, current, or temperature3 K+ @8 @; \. I$ K7 u! ?1 t
sensing shall be defeated if they operate during normal operation ( 1/8 maximum output)
! y' w/ L5 F. O5 Q( d: fDecision:- Y. w: k: W: [6 M2 k% V
In amplifiers, electronic protection circuits activated by voltage, current, or temperature; @% Z s5 {/ e0 W7 Y
sensing shall be defeated if they operate during normal operation ( 1/8 maximum output)
9 I6 R/ R5 ~% d" p6 h& L" i" If a fuse-link, fusing resistor or thermal release operates during the test which is under2 ?+ ~# d% N! i7 X
normal operating conditions than the equipment does not fulfil the requirements."
! D" b' h# ]7 }+ M, I* u& m" z) h q
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发表于 2012-11-8 19:15
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