标题: UL1082 by-pass测试问题 [打印本页] 作者: jianliuhen 时间: 2011-5-27 10:25 标题: UL1082 by-pass测试问题 47.2.3 Dry operation ' m/ k& T0 n# ^2 t, Y" S( _+ U47.2.3.1 The appliance shall be tested as follows, with all temperature controls or protective devices 2 C8 o" v) v3 ashunted out of the circuit, except as noted in 33.1.18.( t! d* W& h9 B$ p2 F
a) An appliance that incorporates a device to limit temperatures shall be tested in accordance3 b+ F, e+ V, v/ b5 g0 M6 ^
with 47.2.3.3.3 `# J; j& b9 I8 l9 P8 D' n
b) An appliance that does not incorporate a device to limit temperatures shall be tested in # o3 K' ]( g5 R. Q7 maccordance with 47.2.3.4.9 E8 q0 B9 C' r4 ~" ?, Q% D
( ?! ], a6 P% l7 g7 l0 c) o . Q" E8 U" v3 k( P33.1.18 An automatic temperature-regulating or -limiting control or other protective device provided as a, g! X$ s/ G% L
part of an appliance is to be shunted out of the circuit, unless the device is suitable for the application as; S; L0 i$ s2 r
required by 49.2.1 and the control is unlikely to be defeated by the user. $ o. C% w$ H+ f5 h1 C+ @; w2 w' v4 S; M/ m/ r6 G- `
49.2.1 A thermostat shall be capable of withstanding an endurance test which shall consist of the number* w) @+ {1 c) a& S! M
of cycles indicated in Table 49.1. Unless it is specified that the test be made without load, the thermostat. k; n# T+ ?: ^( _+ g% U
shall make and break the rated current of the appliance while connected to a circuit of rated voltage. There $ o8 r! Q* t- z& N sshall be neither electrical nor mechanical malfunction of the thermostat, nor undue burning, pitting, or % L* `( E, _: U* j2 L9 P( l4 ]welding of the contacts.; y$ v* M' \! z, o