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以下引自IEC 60065-2005 ! T+ L( b5 w3 g- ?1 J3 m7 z
（不好意思，误导你了，非常抱歉 [s:5]）3 a. q8 @' |. e" Y% P; L" h3 N
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（异常测试时，变压器的温升可以超出限值，注意下面的红色字体和蓝色字体部分。）2 }2 s7 N( X' \, T0 ?! ]$ g- I3 b
! d, P1 {9 t0 b% X/ t+ Q- C11.2.5 Windings
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) i% `& N6 ] d( F$ WThe temperature rise of windings shall not exceed the values given in Table 3, items b) and d)7 y! D. Z% {1 Z+ H5 o5 a6 ]5 E0 u
"Fault conditions", with the following exceptions.
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$ c' K6 i& A7 |+ v2 e/ q0 p& A/ X– If the temperature is limited due to the operation of replaceable or resettable protective devices, the temperature rises may be exceeded until 2 min after the operation of the device.( S9 `% v0 u' L$ G/ |2 v }7 G% c& R
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In the case of windings providing protection against electric shock or where a fault could result in a fire hazard, the test is carried out three times and the winding is then subjected to the dielectric strength test of 10.3 without the humidity treatment of 10.2, starting within 1 min after the temperature rise measurement. No failure is allowed. \ t" s, N' @7 D
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– If the temperature is limited due to the operation of an integral non-resettable or a nonreplaceable protective device or due to the open circuiting of a winding, the temperature rises may be exceeded, but the test shall be carried out three times using new components.
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In the case of windings providing protection against electric shock or where a fault could result in a fire hazard, the winding is then in each case subjected to the dielectric strength test of 10.3 without the humidity treatment of 10.2, starting within 1 min after the temperature rise measurement.0 n' F- P: Z' T, m* t
No failure is allowed.
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– Higher temperature rises are allowed for windings, provided a failure of their insulation cannot cause an electric shock hazard or a fire hazard and that they are not connected to sources capable of supplying power in excess of 5 W under normal operating conditions. / f+ L4 o, v2 F$ X) a6 f2 q- R6 I
, u8 Z: C& Q* h7 E5 f– If a temperature rise value is exceeded and if there is doubt as to whether or not a hazard exists, the insulation concerned is short-circuited and the tests of 11.1 and 11.2.2 are repeated.& |/ j& G6 c2 }) |- m2 ~) a
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NOTE: If the insulation is incorporated in a winding in such a way that its temperature rise cannot be measured directly, the temperature is assumed to be the same as that of the winding wire.
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