本帖最后由 Mecho 于 2013-12-17 12:46 编辑
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1 `1 {1 J- Z+ k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?
1 k v+ l% k' m8 ], v0 X5 W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?
, y9 L7 a& {, Y: ~( @: z6 l! Z60335-1:2010标准相关条款如下 19.4 The appliance is tested under the conditions specified in Clause 11. Any control that
# ?. R! N3 Z, D5 Ulimits the temperature during the test of Clause 11 is short-circuited.
: T% X4 J6 c5 b& mIf the appliance incorporates more than one control, they are short-circuited in turn., U( A; {* X/ G! A: w5 l0 `
19.5 The test of 19.4 is repeated on class 0I appliances and class I appliances
9 }* M% l, M$ j5 M6 L$ Fincorporating tubular sheathed or embedded heating elements. However, controls are not6 H {9 L. r, I) ]/ m
short-circuited but one end of the element is connected to the sheath of the heating element.
; w; W2 E6 O4 I0 B* W6 X3 PThis test is repeated with the polarity of the supply to the appliance reversed and with the
8 I+ {4 V0 ?& `" h+ x: q* }0 e, ]other end of the element connected to the sheath.
9 A; P0 y6 @' [+ U7 dThe test is not carried out on appliances intended to be permanently connected to fixed wiring
$ v/ w) z& K: e+ `: g: Rand on appliances where an all-pole disconnection occurs during the test of 19.4.
# Y ?# ]& c' U) _Appliances with a neutral are tested with the neutral connected to the sheath.% ], e( ?" a0 q
NOTE For embedded heating elements, the metal enclosure is considered to be the sheath.; [/ D# u7 [4 l
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