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60335-2-49,CL22.101 有如下要求:5 p/ Q& j( j9 q
For three-phase appliances, thermal cut-outs protecting circuits with heating elements, and, f$ D; F$ q% ]
those for motors of which the unexpected starting may cause a hazard, shall be of the% z- I! l( ?' n5 K/ R: U/ X. E
non-self-resetting and trip-free type, and shall provide all-pole disconnection from related, d1 f0 G( e% @* o
supply circuits.& C% G: c" z5 z6 \4 z( _$ Q
For single-phase appliances and for single-phase heating elements and/or motors connected# E9 I1 _" L6 a
between one phase and neutral or between phase and phase, thermal cut-outs protecting
8 a" G, ^* |5 B+ M% j# Rcircuits with heating elements, and those for motors of which the unexpected starting may
7 n1 }9 P; p9 H, g/ {! \cause a hazard, shall be of the non-self-resetting and trip-free type, and shall provide at least; @7 K! s! u3 b6 P2 t
one-pole disconnection.
5 G* }2 ^- G) |+ `; h. ?& ^If the non-self-resetting thermal cut-out is only accessible after removing parts with the aid8 j' F# A) A- `7 h) ?. a1 U
of a tool, the trip-free type is not required.* y; Z9 P. I: j( t3 t3 t' B
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.
# @2 Z5 n; _1 C F[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. | * g+ S( h0 D+ u/ g
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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?
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请大家说说 |
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