DSH 284 Power limiting protection

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DSH 284 ! K. _7 {# f; f( d: d) L; i 5 |1 k: O3 m! b1 _! m0 d8 s0 r

Power limiting protection ; J) u, O: x: f: `

7.1, last paragraph

60065(ed.5) . s$ r8 E9 E; @3 _$ T2 \- S& o

Standard: IEC 60065 Ed. 5 Clause: 7.1, last
paragraph
Sheet n. 284
Page 1(1)
Subject: Power Limiting Protection Key words:
' g; M) J- l$ F2 J- Fuse-link
- Fusing resistor
- Thermal release
Decision n. 23/36
9 M: E1 `/ M6 i7 C$ q+ ntaken at 36th
meeting/1999
8 O3 _5 `/ @9 A0 C5 ]/ L$ T, IQuestion:
Does the wording:
5 ]! o- b8 h2 s$ r3 L4 Z1 ^"Fuse-links, fusing resistors and thermal releases affecting the safety of the apparatus
2 ~9 e& {% D+ t9 Q8 l  b+ R' v; Kshall not operate during the test"
mean that:
+ T. x6 {0 ~  S: w# s) I: qa) if a fuse-link, fusing resistor, or thermal release operates during the test, it shall be
defeated and the test continued.
b) In amplifiers, electronic protection circuits activated by voltage, current, or temperature
sensing shall be defeated if they operate during normal operation ( 1/8 maximum output)
. R  f" V4 _! \, I: uDecision:
In amplifiers, electronic protection circuits activated by voltage, current, or temperature
) h& n" p# e) d! h9 m- Q6 ksensing shall be defeated if they operate during normal operation ( 1/8 maximum output)
) j( S( l0 G3 z2 ?1 R" If a fuse-link, fusing resistor or thermal release operates during the test which is under
% B! U- c- Z& f% Y2 [normal operating conditions than the equipment does not fulfil the requirements."