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如题， 22.110 该如何理解？  ( a0 P! y0 F* A
3 A- E; E/ j+ Y7 z% M2 C% ?22.110 Non-self-resetting thermal cut-outs designed to be replaced after their operation
9 {. C& A) A1 t T# L7 tshall open the circuit in the intended manner without short-circuiting live parts of different( {1 @" C4 [% W$ @- Z s# H
potential and without causing live parts to come into contact with the enclosure.
4 J, X0 ?; z8 k' sCompliance is checked by the following test.9 U1 c! h$ F0 P% c2 L- t
The appliance is operated five times, each time with a new non-self-resetting thermal cutout,# A! v3 @; ?1 C0 O% w# T/ x
any other thermally operated control devices being short-circuited.; e) P, K! E* o* ?" c
Each time, the thermal cut-out shall operate appropriately.% [/ W8 Z w7 Q8 m0 @4 _
During the test, the enclosure of the appliance is connected to earth through a 3 A fuse; this6 L% }. T. O" h! J& R
fuse shall not blow.9 }" ^" V/ f; B- G5 a- Q
After this test, the supplementary heating elements shall withstand an electric strength test as: X- Z a# _- \+ }3 M1 S# b2 [6 o
specified in 16.3.
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发表于 2014-7-16 18:14
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