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60335-2-49,CL22.101 有如下要求:+ P0 K/ b5 ]2 I0 z+ L
For three-phase appliances, thermal cut-outs protecting circuits with heating elements, and+ ]6 j4 v) Q* V! I+ T
those for motors of which the unexpected starting may cause a hazard, shall be of the
% e3 q7 D% h8 z0 B3 k$ @; \. snon-self-resetting and trip-free type, and shall provide all-pole disconnection from related
: H& [! Q( X/ |* a2 zsupply circuits.9 p, N, x+ v; i
For single-phase appliances and for single-phase heating elements and/or motors connected
" n( q0 g9 f) [between one phase and neutral or between phase and phase, thermal cut-outs protecting
8 T3 X& ]) H' k' [; Lcircuits with heating elements, and those for motors of which the unexpected starting may* G& y+ Y5 F2 O' d
cause a hazard, shall be of the non-self-resetting and trip-free type, and shall provide at least
# `; I8 A6 M, Q- y0 ^3 [' W# K. r& aone-pole disconnection.& `- \& p6 ~. u5 y
If the non-self-resetting thermal cut-out is only accessible after removing parts with the aid, t* t, i: o. `# \/ `/ a
of a tool, the trip-free type is not required. k2 R O8 B+ W8 ~
NOTE 1 Thermal cut-outs of the trip-free type have an automatic action, with a reset actuating member, so constructed that the automatic action is independent of manipulation or position of the reset mechanism.
. c( x& z6 ^- o$ k[u]Thermal cut-outs of the bulb and capillary type that operate during the tests of Clause 19 | shall be such that rupture of the capillary tube shall not impair compliance with the | requirements of 19.13. | Compliance is checked by inspection, by manual test and by rupturing the capillary tube. | NOTE 2 Care must be taken to ensure that the rupture does not seal the capillary tube. | % f- M% D( S4 v H$ r- U- l. `
% N3 C5 d1 T# V+ \* @: M我想请教的就是上面红底字。这个实验如何做?割开毛细管的温控器,是割开探头部分(粗点),还是割开毛细管(细点)部分?割开以后,里面的传导介质流失掉,限温器还能起什么作用?做60335-1的CL19.5时候,就相当于干烧了,要符合CL19.3的要求,如果干烧符合要求,还加限温器做什么?
B. O# X+ {2 J5 s- O9 L8 ]
4 |2 Z& }/ q9 d1 z请大家说说 |
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