UL1082 by-pass测试问题

jianliuhen

广东安规检测
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IEC60335试验指甲

47.2.3 Dry operation
47.2.3.1 The appliance shall be tested as follows, with all temperature controls or protective devices
shunted out of the circuit, except as noted in 33.1.18.
2 S9 o8 J% O# V( P0 ga) An appliance that incorporates a device to limit temperatures shall be tested in accordance
with 47.2.3.3.
9 W/ C3 p7 o3 ?  Db) An appliance that does not incorporate a device to limit temperatures shall be tested in
accordance with 47.2.3.4.

, A# k, I' a1 f6 J$ x  r/ E0 f
33.1.18 An automatic temperature-regulating or -limiting control or other protective device provided as a
part of an appliance is to be shunted out of the circuit, unless the device is suitable for the application as
$ k) \+ y# O: Jrequired by 49.2.1 and the control is unlikely to be defeated by the user.
! G% m5 b0 l2 O; C
49.2.1 A thermostat shall be capable of withstanding an endurance test which shall consist of the number
of cycles indicated in Table 49.1. Unless it is specified that the test be made without load, the thermostat
- S/ g! Z, e) }shall make and break the rated current of the appliance while connected to a circuit of rated voltage. There
- T8 ]( F- B0 U3 A1 F( M, nshall be neither electrical nor mechanical malfunction of the thermostat, nor undue burning, pitting, or
, B9 n% z, ~2 I! Jwelding of the contacts.

1 {& t6 ]$ c, s+ P4 f0 C如果有一个Percolator(渗滤式咖啡壶)里面有一个thermostat和一个fuse，thermostat可以过了49.2.1，那要不要短路thermostat做非正常测试？？
还是根据其他条款做非正常测试？

jiang2007

非正常测试时要将温控器短路进行测试。

jianliuhen

那根据那个条款做非正常测试
. L$ i$ C6 p) ~1 C- B如果UL1082没说，是不是可以不做非正常测试？

michael.king

要做，可验证当thermostat失效时，是否会引起火灾。
5 Y4 r% a# E* d- T; b" x% ^: z个人见解，供参考

jianliuhen

我认为也是要做的
主要想找到UL1082的条款支持。
! n: U0 l$ Q/ U1 f, [- Z8 r' o7 U因为没有相对应的条款，别人就认为可以不做的！