如何对电吹风分离电路做39.3.3和39.3.4？UL859

shixiafeng

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如何对电吹风分离电路做39.3.3和39.3.4？UL859
The air inlet opening shall be gradually obstructed until the operation of all circuits is interrupted
) f3 @3 q5 Q" A: S" C& a: I! }by the functioning of a limit or a temperature control, or until ultimate results are otherwise obtained
39.3.4.2 The air outlet is to be gradually obstructed using masking tape such that approximately 50, 75,
& E1 v9 j3 [* m7 C5 y90, and 100 percent of the outlet opening area is progressively blocked for 3 minutes at each of the four
positions. For each of three samples, the location at which the blocking begins (the top, a side, or bottom)
is to progress in the same direction in which it was started and is to be such that the limit control will
remain in the air flow for the longest possible time as blocking progresses. If temperatures cause
( J4 o* }* q6 U% o/ Z3 d0 W7 Rdegradation of the tape, or if the use of tape would cause deformation of an outlet nozzle, a metal plate
* u: w, f8 p- t! F: ?: d: f0 jor other material resistant to combustion may be used to block the outlet opening. If the final 100 percent
1 M. H! N9 f5 ^+ V. }blockage test does not result in interruption of all heater and motor circuits by a limit control, the test is to
be continued, at 100 percent blockage, for 7-1/2 hours, at which time ultimate results are considered to
be achieved.
: G) ^" @$ e5 }" \, N! m  Z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?

feel100%

分离线路
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

. Y- E% u# g7 u- ?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

tianchi0305

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

lsj7250

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?

shixiafeng

谢谢指教，解决了我的问题