本帖最后由 Mecho 于 2013-12-17 12:46 编辑
" o$ b3 R1 I, N B2 Y1 v' Z. @
" f( t- M8 T5 `4 j, {( H附件附件中有完整图文描述~~~~~ 加热管 温控器设计 单相机器,带plug,也不是全极断开。 如图, 1. 我们的机器用一个EGO的毛细管温控器加在加热管的一端非正常测试做干烧时,可以满足19.4和19.5的要求吗? 2. 如果不可以的话,我们EGO有3 poles的型号,我将2极接在加热管的两端可以满足吗? : M. ~6 w) k" R; R# O% h P
三相器具,固定接线,不带插头;开关控制接触器可以全极断开 如图 一个EGO,有3poles,分别接到三根加热管的一端。 这样应该可以避开19.5的测试,但是19.4的可以满足吗? 如果不行,可以采取什么样的方法来解决这个问题? + c- Q# c3 ^$ V/ }4 F; i
60335-1:2010标准相关条款如下 19.4 The appliance is tested under the conditions specified in Clause 11. Any control that
$ {, V( G6 F ~7 [4 @limits the temperature during the test of Clause 11 is short-circuited.5 ]6 L( @) {% b% g
If the appliance incorporates more than one control, they are short-circuited in turn.% R. ^2 s3 [( p- ]5 G) W( ~- A! k
19.5 The test of 19.4 is repeated on class 0I appliances and class I appliances {- r1 r, S+ s
incorporating tubular sheathed or embedded heating elements. However, controls are not! A0 K: j$ Z, @& B
short-circuited but one end of the element is connected to the sheath of the heating element.8 Z7 x1 X7 N8 V8 j4 R
This test is repeated with the polarity of the supply to the appliance reversed and with the( D. ~: G4 x* @! ~9 r5 w1 x+ ~
other end of the element connected to the sheath.
) M1 V4 _0 ^* Z3 G3 xThe test is not carried out on appliances intended to be permanently connected to fixed wiring" T: d8 G+ P) ~; m9 h3 _; u
and on appliances where an all-pole disconnection occurs during the test of 19.4.
8 B. Z- @4 l7 }, s5 |6 b$ ^Appliances with a neutral are tested with the neutral connected to the sheath.
. H. b* j, g" ?2 b9 `% {NOTE For embedded heating elements, the metal enclosure is considered to be the sheath.2 e7 G8 D2 A+ m
|