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首先要搞清楚Thermal motor protectors和你所说的热熔断体(thermal link)的概念" F9 J7 V+ X s6 M- N+ @
thermal link定义:thermal cut-out which operates only once and requires partial or complete replacement
8 V/ n: Q+ @- D% l/ ?在标准中并没有直接对Thermal motor protectors的定义, 且Thermal motor protectors在 annex D里面分为 self-resetting thermal motor protectors 和no self-resetting thermal motor protectors
8 W- c1 y% s8 J# A; n但是我们可以参考标准中对于self-resetting thermal cut-out和 no self-resetting thermal cut-out的定义,7 Z9 o! ?+ L! a" b: f
no self-resetting thermal cut-out定义:thermal cut-out that requires a manual operation for resetting, or replacement of a part, in order to restore the current.
! L4 u' ^% j7 {# \* e1 w" _从定义中可以看出热熔断体(thermal link)和非自复位热断路器(no self-resetting thermal cut-out)是两个不同的保护器件, 所以热熔断体自然也不能和no self-resetting thermal motor protectors等同6 k) l9 T t$ F' G+ H: m
所以对于装有热熔断体的motor, annex D不适用
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