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如题， 22.110 该如何理解？ 
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22.110 Non-self-resetting thermal cut-outs designed to be replaced after their operation0 ~% u" U' M' D1 A0 g0 U& _% G
shall open the circuit in the intended manner without short-circuiting live parts of different
0 T- F. a7 v4 ^+ Gpotential and without causing live parts to come into contact with the enclosure.. h: r, ^: b! p+ ^# D# l, g
Compliance is checked by the following test. a2 f1 F' Q) Y5 n! P
The appliance is operated five times, each time with a new non-self-resetting thermal cutout,
% m. _2 u/ o- N/ Q9 S; J3 x. }any other thermally operated control devices being short-circuited.* l& G" ~2 `. ~0 ^4 O6 U+ b% J
Each time, the thermal cut-out shall operate appropriately.
, p) f6 }5 R, P$ SDuring the test, the enclosure of the appliance is connected to earth through a 3 A fuse; this
/ L1 f9 j# K. y Ifuse shall not blow.
) w' h# N7 I. q5 gAfter this test, the supplementary heating elements shall withstand an electric strength test as
' z. x& ^$ Q% H; ~4 G6 Bspecified in 16.3.9 x H: S$ r5 M% ^- i- d2 L0 h
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发表于 2014-7-16 18:14
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