本帖最后由 Mecho 于 2013-12-17 12:46 编辑 * K, ]* |' f( q+ _8 {# U" A! U' s
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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？
, c" e# f- O+ K6 E. }. 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？ . Z3 I3 Z: S5 R
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 that2 @( }9 ]' z1 @$ c% Z/ T
limits the temperature during the test of Clause 11 is short-circuited.
. O( L5 I* V8 p dIf the appliance incorporates more than one control, they are short-circuited in turn." L/ L }! o: s% m
19.5 The test of 19.4 is repeated on class 0I appliances and class I appliances
9 W, [+ P; W6 G/ i3 I' dincorporating tubular sheathed or embedded heating elements. However, controls are not
. v2 @. Z u w' ?9 v' rshort-circuited but one end of the element is connected to the sheath of the heating element./ @# C, D' f: Y: \1 c
This test is repeated with the polarity of the supply to the appliance reversed and with the4 @2 S' N) M2 J h4 p
other end of the element connected to the sheath.
) {' N! x) Y+ T3 H$ I. rThe test is not carried out on appliances intended to be permanently connected to fixed wiring. h8 x8 H* S0 l
and on appliances where an all-pole disconnection occurs during the test of 19.4.
& F' s- U; t1 tAppliances with a neutral are tested with the neutral connected to the sheath.
; [+ f6 b7 o. B& G% j DNOTE For embedded heating elements, the metal enclosure is considered to be the sheath.+ S6 N- n' T( R. d
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发表于 2013-12-17 12:47
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