|
|
如何对电吹风分离电路做39.3.3和39.3.4？UL8592 d1 n1 ^0 o) q$ K$ `4 a. f
The air inlet opening shall be gradually obstructed until the operation of all circuits is interrupted
$ q& @# W. s) d% s- p cby the functioning of a limit or a temperature control, or until ultimate results are otherwise obtained
8 M; ?9 c' Y. Y0 c5 v1 o. L; d39.3.4.2 The air outlet is to be gradually obstructed using masking tape such that approximately 50, 75,
# s. ^$ ] v- W" m# m3 W4 Z90, and 100 percent of the outlet opening area is progressively blocked for 3 minutes at each of the four
- [1 F& T/ K4 a: Apositions. For each of three samples, the location at which the blocking begins (the top, a side, or bottom)
) _2 m8 _) a2 \7 r( His to progress in the same direction in which it was started and is to be such that the limit control will- V# p0 J( U/ m2 o' N, r2 `9 i+ R5 a/ D
remain in the air flow for the longest possible time as blocking progresses. If temperatures cause
0 m+ ^- u% M" `3 |5 B( ^degradation of the tape, or if the use of tape would cause deformation of an outlet nozzle, a metal plate& `9 q. q4 |% J$ ?6 w
or other material resistant to combustion may be used to block the outlet opening. If the final 100 percent
; Z6 L) ?0 T J6 F" q' ublockage test does not result in interruption of all heater and motor circuits by a limit control, the test is to
$ y8 Q9 U+ n, obe continued, at 100 percent blockage, for 7-1/2 hours, at which time ultimate results are considered to2 q0 q1 | ^9 e" i' J4 ]* E' q' m
be achieved.
$ M* ~' b! ~+ C3 n/ x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? |
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2009-5-30 17:21
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
楼主