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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
- d+ }! F$ T5 _2 qthermal link定义:thermal cut-out which operates only once and requires partial or complete replacement
}, j# v* g/ d1 B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, m4 y m! K7 x$ ^7 h, U
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,
. i3 L1 ^- \( Tno 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.
6 |! M+ D. }9 h6 }- f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
1 c5 c) D- I+ U/ P" U$ X所以对于装有热熔断体的motor, annex D不适用
6 A: L; O; I0 K |
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