|
|
47.2.3 Dry operation6 O7 Y/ f ?$ h+ L; D
47.2.3.1 The appliance shall be tested as follows, with all temperature controls or protective devices
9 k! s- U& [' |- b ]shunted out of the circuit, except as noted in 33.1.18.' f, s0 K! w8 @5 r, I/ y+ {
a) An appliance that incorporates a device to limit temperatures shall be tested in accordance
7 g7 s0 K) p1 o7 O9 O6 A0 K, D, Owith 47.2.3.3., p1 E7 X; @4 v9 I, d9 J# H. m- L7 P' H
b) An appliance that does not incorporate a device to limit temperatures shall be tested in
& {9 l* B& a2 S* M# |7 saccordance with 47.2.3.4.
1 K( H+ h% n3 V: }' i; ~/ z) R9 j& o- g( G& v, { l/ M2 K: @% O8 p
# K6 [1 S; v& Y" O w' a7 a
33.1.18 An automatic temperature-regulating or -limiting control or other protective device provided as a
2 z+ i/ {& Y- p6 F/ ~part of an appliance is to be shunted out of the circuit, unless the device is suitable for the application as. f, @) a: s7 ]) k8 m" t9 F0 N
required by 49.2.1 and the control is unlikely to be defeated by the user.
( c- `, n+ }8 ? V9 g, [8 |& R8 h9 Q2 a) y5 |
49.2.1 A thermostat shall be capable of withstanding an endurance test which shall consist of the number
& }$ k% U9 I+ _- nof cycles indicated in Table 49.1. Unless it is specified that the test be made without load, the thermostat
. E% P1 F# W4 J4 V+ @shall make and break the rated current of the appliance while connected to a circuit of rated voltage. There M8 u) a+ M p* b3 e9 |0 T' K7 V
shall be neither electrical nor mechanical malfunction of the thermostat, nor undue burning, pitting, or
7 @! x% {# S0 i7 w/ R' F3 ^& ^welding of the contacts.
+ X8 x+ I7 W) k3 v2 @/ M/ B( t; h7 j4 |' P- g; G
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？？- l( [& o# l# z; k3 m; h
还是根据其他条款做非正常测试？ |
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2011-5-27 10:25
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
楼主