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60335-2-49,CL22.101 有如下要求:! O' S) Q: u' ?: F
For three-phase appliances, thermal cut-outs protecting circuits with heating elements, and
2 c0 G( U$ V, b6 K( a! ?" qthose for motors of which the unexpected starting may cause a hazard, shall be of the5 V; n1 k# x5 e/ N/ l7 n( i- \( S
non-self-resetting and trip-free type, and shall provide all-pole disconnection from related
2 L2 x2 T" w' Q' osupply circuits.
4 ?& D+ k" t4 i4 Y4 ]( LFor single-phase appliances and for single-phase heating elements and/or motors connected
) l( g6 {4 I9 ^- Bbetween one phase and neutral or between phase and phase, thermal cut-outs protecting
& f6 B1 ^* T7 |) z+ Ocircuits with heating elements, and those for motors of which the unexpected starting may
( o; k( \* N" {6 c# O9 `% Bcause a hazard, shall be of the non-self-resetting and trip-free type, and shall provide at least
& o% m( z/ J7 done-pole disconnection.
) W# k i- `, u, C5 v1 IIf the non-self-resetting thermal cut-out is only accessible after removing parts with the aid
6 r9 Q3 G! F- o0 c0 Q/ F, wof a tool, the trip-free type is not required.) g: a# U8 g6 {7 J K( ]
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.
; @4 l+ J4 Z. |6 Q9 }8 w3 \[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. | ; K! t t M+ y# A8 Q4 d3 C
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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?6 W. U: A! ~6 w( |8 \. W9 z* X4 B
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请大家说说 |
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