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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
. l+ \0 l+ k* n6 a% bthermal link定义:thermal cut-out which operates only once and requires partial or complete replacement. M) |8 j- n8 h5 I! D$ @
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! d0 Z6 n/ k9 T, _* r! B
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,5 S& L( x) i' j+ [& v
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.
: N: X. ~* w$ g7 U5 t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
5 g4 q# ]2 O1 @+ J所以对于装有热熔断体的motor, annex D不适用( D& W1 [. D: V2 D' _9 F7 n' ^
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