附上标准原文供大家参考、讨论：
UL61010-1(基本等同IEC61010-1)
4.4 Testing in SINGLE FAULT CONDITION
。。。。。
4.4.2 Application of fault conditions
。。。。。
4.4.2.6 MAINS transformers
The secondary windings of MAINS transformers shall be short-circuited as speci?ed in 4.4.2.6.1, and
overloaded as speci?ed in 4.4.2.6.2
A transformer damaged during one test may be repaired or replaced before the next test.
Tests for MAINS transformers tested as separate components are speci?ed in 14.7.
。。。。。
14 Components
14.1 General
If safety is involved, components shall be used in accordance with their speci?ed RATINGS unless a speci?c
exception is made. They shall conform with one of the following:
a) applicable safety requirements of a relevant IEC standard. Conformity with other
requirements of the component standard is not required. If necessary for the application,
components shall be subjected to the tests of this standard, except that it is not necessary to
carry out identical or equivalent tests already performed to check conformity with the component
standard;
b) the requirements of this standard and, where necessary for the application, any additional
applicable safety requirements of the relevant IEC component standard;
c) if there is no relevant IEC standard, the requirements of this standard;
d) applicable safety requirements of a non-IEC standard which are at least as high as those of
the relevant IEC standard, provided that the component has been approved to the non-IEC
standard by a recognized testing authority.
NOTE Tests performed by a recognized testing authority which con?rm conformity with applicable safety
requirements need not be retested, even if the tests were performed using a standard other than an IEC standard.
Figure 10 is a ?ow chart showing methods of conformity veri?cation.
Conformity is checked by inspection and, if necessary, by test. No further tests are required for motors
and 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）
。。。。。。
14.7 MAINS transformers tested outside equipment
MAINS transformers tested outside the equipment (see 4.4.2.6) shall be tested in the same conditions as
exist inside the equipment if these could affect the test results.
Conformity is checked by the short-circuit and overload tests speci?ed in 4.4.2.6, followed by the test of
4.4.4.1 b) and c). If there is any doubt whether a transformer would pass the other tests speci?ed in 4.4.4
and 10.2 when installed in the equipment, the tests are repeated with the transformer installed in the
equipment. |
发表于 2011-11-20 01:35:28
收藏
楼主