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 / f# y* A" T G' ^3 C7 w6 ?The air inlet opening shall be gradually obstructed until the operation of all circuits is interrupted) z! V5 B+ W }6 g
by the functioning of a limit or a temperature control, or until ultimate results are otherwise obtained0 X! u, B9 U5 h6 O# F. K( r1 z
39.3.4.2 The air outlet is to be gradually obstructed using masking tape such that approximately 50, 75, * j4 N. D W6 x$ F, [90, and 100 percent of the outlet opening area is progressively blocked for 3 minutes at each of the four 9 _# x( |. C/ C8 e( V2 ^6 zpositions. For each of three samples, the location at which the blocking begins (the top, a side, or bottom) + K" v% k0 ~4 e1 U) {. Cis to progress in the same direction in which it was started and is to be such that the limit control will% |$ Q w( `$ w7 Z3 H0 @0 G6 V. T" s
remain in the air flow for the longest possible time as blocking progresses. If temperatures cause* o. l/ |. X2 f6 Z: R6 v' P; E3 u: j
degradation of the tape, or if the use of tape would cause deformation of an outlet nozzle, a metal plate / U) D& N2 x# A, [or other material resistant to combustion may be used to block the outlet opening. If the final 100 percent- n1 v$ H1 h$ M
blockage test does not result in interruption of all heater and motor circuits by a limit control, the test is to) p4 u$ ?+ m, {1 ~- a3 _6 y
be continued, at 100 percent blockage, for 7-1/2 hours, at which time ultimate results are considered to 5 t; Z1 F1 a6 T0 w( zbe achieved. $ t8 v1 K" W8 p1 c. I: J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$ d5 }* x. Z( b, U
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' s' g# o7 [- j4 V8 x