本帖最后由 Mecho 于 2013-12-17 12:46 编辑 ( P" y. ^' B* ^* s$ H# b, {# r* T4 ]
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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？ 4 ?. f# Y, C/ }
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？ + J+ ?- |* V/ [
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; K* K5 D, R- ~! ]8 b* ~: `! m+ r
limits the temperature during the test of Clause 11 is short-circuited.
, A6 b+ t) O5 J0 W* GIf the appliance incorporates more than one control, they are short-circuited in turn.# S2 `/ @, p9 q" l' V6 ?
19.5 The test of 19.4 is repeated on class 0I appliances and class I appliances
) q5 Y f1 A, q! O! ]incorporating tubular sheathed or embedded heating elements. However, controls are not
K% e" W8 i; o1 `; V( C6 K2 Lshort-circuited but one end of the element is connected to the sheath of the heating element.
. U' e7 b6 g% P' MThis test is repeated with the polarity of the supply to the appliance reversed and with the
" q5 B. v9 k. {1 ^0 X$ tother end of the element connected to the sheath. o1 F2 Q% d8 S4 W
The test is not carried out on appliances intended to be permanently connected to fixed wiring
O' p4 K9 U ?) e& N4 r) _3 aand on appliances where an all-pole disconnection occurs during the test of 19.4.3 N: Z/ a2 U$ m; e
Appliances with a neutral are tested with the neutral connected to the sheath. n1 f; |( T4 S9 N. J' y2 [
NOTE For embedded heating elements, the metal enclosure is considered to be the sheath.3 N* g" G1 t1 I2 y" r' o: U6 p
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发表于 2013-12-17 12:47
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