标题: 如何对电吹风分离电路做39.3.3和39.3.4？UL859 [打印本页] 作者: shixiafeng 时间: 2009-5-30 17:21 标题: 如何对电吹风分离电路做39.3.3和39.3.4？UL859 如何对电吹风分离电路做39.3.3和39.3.4？UL859( k: u! b7 c2 r+ U6 t7 \8 h1 t, t
The air inlet opening shall be gradually obstructed until the operation of all circuits is interrupted ; d$ W/ H4 {3 _! Q. N6 B, F+ oby the functioning of a limit or a temperature control, or until ultimate results are otherwise obtained 8 X/ \- s. \* b39.3.4.2 The air outlet is to be gradually obstructed using masking tape such that approximately 50, 75, 0 k: |) X4 y, u90, and 100 percent of the outlet opening area is progressively blocked for 3 minutes at each of the four4 f s, J2 M8 `0 N5 ~" X
positions. For each of three samples, the location at which the blocking begins (the top, a side, or bottom)* ?0 O" S' d- d( I, ?0 w" {$ b
is to progress in the same direction in which it was started and is to be such that the limit control will ( I5 {8 b, J: A) R: Tremain in the air flow for the longest possible time as blocking progresses. If temperatures cause 0 j. Z* c) h& l: j# f4 H+ Zdegradation of the tape, or if the use of tape would cause deformation of an outlet nozzle, a metal plate $ A! [' b) {7 tor other material resistant to combustion may be used to block the outlet opening. If the final 100 percent 5 D5 j7 ]% l7 T: i+ j* j! \3 lblockage test does not result in interruption of all heater and motor circuits by a limit control, the test is to & h; R4 E/ x! j. T" nbe continued, at 100 percent blockage, for 7-1/2 hours, at which time ultimate results are considered to! z. D! }+ ?% m* E" ?. a) U
be achieved.' U- I/ H$ m6 u* o
是不是TCO动作了不停止了，还是做到最终结果或者是FUSE开路?作者: feel100% 时间: 2009-5-31 10:05
分离线路/ m6 H, W, p7 l+ I
对于堵入风测试，做到FUSE Open如果盖上十层毛巾FUSE还没断开的话，就盖着十层毛巾运行7.5h / p. c& V) N$ v) `7 L; g1 J {) [ t5 ^$ x
对于堵出风测试也一样是做到FUSE Open,或堵到100% fuse还没断开的话，就堵着100%运行7.5H作者: xuewenfei 时间: 2009-5-31 10:15
提示: 作者被禁止或删除 内容自动屏蔽作者: tianchi0305 时间: 2009-5-31 12:37
第一句中的until the operation of all circuits is interrupted 就说明是要所有的线路都要断开，而分离线路中TCO动作是还有功率的所以要等FUSE断开作者: lsj7250 时间: 2009-6-5 19:10
如果是分离线路，跳制先断开后，马达在工作，是否算通过？请指教?作者: xuewenfei 时间: 2009-6-5 19:30
提示: 作者被禁止或删除 内容自动屏蔽作者: shixiafeng 时间: 2009-6-7 21:54
谢谢指教，解决了我的问题作者: longclever 时间: 2009-6-8 16:46
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