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47.2.3 Dry operation) f0 v5 F% ]: w0 i3 i% t0 S% |+ H
47.2.3.1 The appliance shall be tested as follows, with all temperature controls or protective devices$ U9 j# H# Y" q6 U1 E3 Y' L# O
shunted out of the circuit, except as noted in 33.1.18.+ \: v7 o J: j5 R$ @3 v
a) An appliance that incorporates a device to limit temperatures shall be tested in accordance
. h( {. a- H) _4 ywith 47.2.3.3.3 l W$ Y: p8 B+ l
b) An appliance that does not incorporate a device to limit temperatures shall be tested in( R: ]" ]! C- g9 ?
accordance with 47.2.3.4.
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# n* [! i7 C- ]- B33.1.18 An automatic temperature-regulating or -limiting control or other protective device provided as a
% V B2 S7 D* O8 x; [8 x, Zpart of an appliance is to be shunted out of the circuit, unless the device is suitable for the application as
" ~+ S: Q8 }# R9 @# k8 trequired by 49.2.1 and the control is unlikely to be defeated by the user.
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49.2.1 A thermostat shall be capable of withstanding an endurance test which shall consist of the number
: L6 u5 k1 A7 Y) Hof cycles indicated in Table 49.1. Unless it is specified that the test be made without load, the thermostat
& t+ }6 q; t' P; I i! }shall make and break the rated current of the appliance while connected to a circuit of rated voltage. There# }1 ~; i8 P) g# d/ O8 k% n5 Y
shall be neither electrical nor mechanical malfunction of the thermostat, nor undue burning, pitting, or; ]: P: p. L& Z% a/ }& k# ~# O
welding of the contacts.
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& p# S5 S* ^, e/ B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？？
% V" r0 r9 \) e% q" P还是根据其他条款做非正常测试？ |
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