本帖最后由 Mecho 于 2013-12-17 12:46 编辑
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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？
) M' O0 ?6 V! y3 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？ % h. G5 N3 T5 n7 _
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
: l6 Z, y. l0 W& klimits the temperature during the test of Clause 11 is short-circuited.
: d, _2 v! ?/ Y* CIf the appliance incorporates more than one control, they are short-circuited in turn.5 `0 z7 x6 _, ^
19.5 The test of 19.4 is repeated on class 0I appliances and class I appliances0 j' c- ^( h1 H- g" n2 z3 T, e
incorporating tubular sheathed or embedded heating elements. However, controls are not( y( u* b* m$ g- u3 ]0 W
short-circuited but one end of the element is connected to the sheath of the heating element.) b+ S1 R0 C/ k9 G8 b
This test is repeated with the polarity of the supply to the appliance reversed and with the, f5 N4 d; G. Q# @) q& T2 e$ C
other end of the element connected to the sheath.* ]1 ]8 X! v, Z \
The test is not carried out on appliances intended to be permanently connected to fixed wiring! l: J' E# R* l9 P- u" {
and on appliances where an all-pole disconnection occurs during the test of 19.4.
# K, b! Y4 m0 A- Z7 yAppliances with a neutral are tested with the neutral connected to the sheath.
9 Y& O% O/ G3 LNOTE For embedded heating elements, the metal enclosure is considered to be the sheath.
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发表于 2013-12-17 12:47
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