本帖最后由 Mecho 于 2013-12-17 12:46 编辑 4 T7 Q% \* y% R( F& r
! a" b" ~" L; ~$ p+ K1 C4 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? " {8 Y a2 s. R/ k7 F! U
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?
8 U' C9 x7 C" u' }: 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
( t" b1 K# ]3 z9 b9 O7 m5 ]limits the temperature during the test of Clause 11 is short-circuited.
) N/ ~$ O/ a. c& O* V+ UIf the appliance incorporates more than one control, they are short-circuited in turn.
# o* B1 v: ~7 A# J19.5 The test of 19.4 is repeated on class 0I appliances and class I appliances8 f: f. T7 A" y* J. {
incorporating tubular sheathed or embedded heating elements. However, controls are not& y: R5 c( {( j, Y7 b' Q0 B
short-circuited but one end of the element is connected to the sheath of the heating element.
1 M) |1 z' J4 S5 `This test is repeated with the polarity of the supply to the appliance reversed and with the
5 |" v* D7 w" yother end of the element connected to the sheath.
) g) F8 r2 J: b$ p% @0 r, qThe test is not carried out on appliances intended to be permanently connected to fixed wiring
* R( x* d! O! j1 Nand on appliances where an all-pole disconnection occurs during the test of 19.4.
: K7 R0 a( W2 JAppliances with a neutral are tested with the neutral connected to the sheath.- D) e {7 ?5 ]8 t5 n5 L! j( y3 g
NOTE For embedded heating elements, the metal enclosure is considered to be the sheath.% _ s/ @' ?5 P# Z* q$ K
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