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标准里的话可以解答你的问题,请查如下:
. V4 j" z5 B( Q2 i8 BThis annex is applicable to appliances having motors that incorporate thermal motor & a: b3 {2 a4 ~
protectors that are necessary for compliance with the standard. C6 x, S/ e. j; |6 @' q
0 F: g( t0 O* T& [4 f& c1 U7 O3 A
- motors having self-resetting thermal motor protectors are operated for 300 cycles or for & ?+ g/ r9 C1 O m5 C
72 h, whichever occurs first, unless they are likely to be permanently subjected to the ) Z) A l% g3 s; D" E3 L
supply voltage, in which case the duration is 432 h;
9 J! C" {, [3 N# u– motors having non-self-resetting thermal motor protectors are operated for 30 cycles, the / m8 v) }% O9 C: u: W5 f/ m
thermal motor protector being reset as soon as possible after each operation, but in not " r0 x4 y4 Y$ \ y0 \: u& U& S$ a
less than 30 s
8 n1 o# k6 o) s/ U4 e* d& Z9 w( B 要仔细看标准 |
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