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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
, j1 R( y( G' h/ x! l7 S, hthermal link定义:thermal cut-out which operates only once and requires partial or complete replacement$ b& \2 ]3 r# @8 E3 N
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
$ q7 b. x# |. b% p' a0 Z4 V# I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,
8 }4 E T3 ~& I U5 Rno 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.
& L# ~. m7 R9 r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
) N* B# |: d9 \% K& Q, D2 e# B8 Y( ^3 r所以对于装有热熔断体的motor, annex D不适用 @( {$ t; {' i" B3 B( A
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