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发表于 2009-4-22 11:37
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附上标准原文供大家参考、讨论：8 W8 d% Z2 m6 M
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UL61010-1(基本等同IEC61010-1)+ b: j* H5 l: w" B5 t/ V4 B/ }- m1 c
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4.4 Testing in SINGLE FAULT CONDITION
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4.4.2 Application of fault conditions
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4.4.2.6 MAINS transformers
Z% [8 d* M* n* s/ u; nThe secondary windings of MAINS transformers shall be short-circuited as specified in 4.4.2.6.1, and
3 G3 ^/ f; y2 O- O4 `6 H0 Goverloaded as specified in 4.4.2.6.2
3 X- y! l' q+ QA transformer damaged during one test may be repaired or replaced before the next test.
% A2 c$ R0 p% ^6 _, v' [9 iTests for MAINS transformers tested as separate components are specified in 14.7.
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14 Components
( a/ _2 {6 X. G( B; v14.1 General( }0 `# Y! r1 ~0 J0 G
If safety is involved, components shall be used in accordance with their specified RATINGS unless a specific
" e$ R4 f% I! o+ M/ ^2 [- i! Zexception is made. They shall conform with one of the following:
* s. [" E" l" I* p! C6 J+ Ra) applicable safety requirements of a relevant IEC standard. Conformity with other& e0 _( h# ?( k% p: [# D$ E
requirements of the component standard is not required. If necessary for the application,/ h/ l$ s Q% ~: |. n" `3 X- J) `
components shall be subjected to the tests of this standard, except that it is not necessary to
1 |; t$ b2 V; }5 Xcarry out identical or equivalent tests already performed to check conformity with the component
# y# y+ j' S& u8 ~& w$ {# Bstandard; a, u5 I F: {; ~ F. q
b) the requirements of this standard and, where necessary for the application, any additional
: E& _; o5 U0 U+ L# capplicable safety requirements of the relevant IEC component standard;) x6 v" a& K- u- \9 y7 K( H- n
c) if there is no relevant IEC standard, the requirements of this standard;
) H" l" J) [7 u4 \: M9 td) applicable safety requirements of a non-IEC standard which are at least as high as those of
% W$ @' \2 E3 h2 v6 E3 dthe relevant IEC standard, provided that the component has been approved to the non-IEC1 s* k* b4 j' R
standard by a recognized testing authority.
! w# F; Z9 ?: ~2 b2 q0 qNOTE Tests performed by a recognized testing authority which confirm conformity with applicable safety
! r- |. o" g( r+ prequirements need not be retested, even if the tests were performed using a standard other than an IEC standard.
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Figure 10 is a flow chart showing methods of conformity verification.
: n6 j9 P8 G' N. U4 N. I' ZConformity is checked by inspection and, if necessary, by test. No further tests are required for motors
9 e; j4 \& D' v# J/ T4 }+ mand transformers that have passed the applicable tests of 4.4.2.4, 4.4.2.6, 14.2 and 14.7. （注：4.4.2.4是关于电机的故障测试，14.2是关于电机的部件测试）- \8 D: W" \# C1 s/ p
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. v% o1 ?/ d/ K4 a) `/ j14.7 MAINS transformers tested outside equipment
( H5 k1 V; R3 D8 b" d) @MAINS transformers tested outside the equipment (see 4.4.2.6) shall be tested in the same conditions as
8 U/ H7 t5 U" H8 A9 `exist inside the equipment if these could affect the test results.: m5 m F# W! q: a! {
Conformity is checked by the short-circuit and overload tests specified in 4.4.2.6, followed by the test of2 D2 \$ @8 F& T$ h. B
4.4.4.1 b) and c). If there is any doubt whether a transformer would pass the other tests specified in 4.4.4/ o2 p/ Q! o" N) e" U
and 10.2 when installed in the equipment, the tests are repeated with the transformer installed in the% ^1 T7 ?' w5 p- Z: s
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