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发表于 2007-7-7 16:27
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引用第21楼barry于2007-07-07 15:55发表的 :+ c& H$ ~$ u9 }8 ?. E# z+ T+ u+ H
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* x1 f+ U1 ]0 L E4 [2 H, a$ Z" M实在不好意思，误导你了。。。
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* C; X( o8 A# T7 K1 N非常抱歉。。。, @( h% A# e @! E6 g: c+ ~1 B, ~
.......
6 M: ?4 T2 A$ a9 y# r* S) i谢谢! 我明白了, 应该使用下面的条款(章节11.2.5) 可以解释:! F& }" U; y3 h
– If the temperature is limited due to the operation of an integral non-resettable or a nonreplaceable protective device or due to the open circuiting of a winding, the temperature rises may be exceeded, but the test shall be carried out three times using new components." A( H7 n# W+ }/ h" h! w
5 |( S! C" `% lIn the case of windings providing protection against electric shock or where a fault could result' n5 P; ^. {) V' R9 \
in a fire hazard, the winding is then in each case subjected to the dielectric strength test of 10.3
3 s g7 [( Y$ Y* G$ Jwithout the humidity treatment of 10.2, starting within 1 min after the temperature rise
2 X" J( [& ^7 f. _measurement.
0 k: y& o( z* C温度保险起保护作用时, 温升可以超标, 但须通过标准规定的高压测试.
2 o: Y9 l( A0 Z引申的问题是: 温度保险丝须在多长时间内起保护作用, 是否可以应用60065章节11.2.1第一段话理解:
% y. m/ k7 n( U7 w11.2.1 DR Measurement of temperature rises, u4 {: t! p# y2 T' s# |: F' N) W6 a. D
The apparatus is operated under fault conditions and the temperature rises are measured after a steady state has been attained, but not later than after 4 h operation of the apparatus.
8 d* T* ]- D- m" }' R在达到温度稳定前, 但工作不超过4小时. 对吗? |
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发表于 2007-7-7 15:55
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