" ]. b- J# P( T: q# c7 E6 L4 w22.110 Non-self-resetting thermal cut-outs designed to be replaced after their operation 7 t+ _. N0 S' \2 ]shall open the circuit in the intended manner without short-circuiting live parts of different' b6 K, m( w: X5 \: Y7 R0 A! u
potential and without causing live parts to come into contact with the enclosure./ |; K; `- u3 i- l( G# z8 K8 Y
Compliance is checked by the following test.$ V# K5 n9 j: l8 y5 x
The appliance is operated five times, each time with a new non-self-resetting thermal cutout, , k5 P- Y z# Q1 v3 K) v: f4 lany other thermally operated control devices being short-circuited.* N0 X! V+ l) o3 ?
Each time, the thermal cut-out shall operate appropriately.$ k6 Z- o7 y& E
During the test, the enclosure of the appliance is connected to earth through a 3 A fuse; this % f6 j( a( O! O5 | dfuse shall not blow./ W$ e% {7 ?$ e1 B+ g
After this test, the supplementary heating elements shall withstand an electric strength test as0 L6 |1 j, W. X! }' v8 k
specified in 16.3.# X$ ]/ a( T, l8 u! a8 B! | 作者: tarry 时间: 2015-3-10 09:17
应该是如果失效控温元件，热熔断器能即时断开，3A电流保险丝不能断开，且耐压能过。这个测试要做5次。
" R; i5 Y: ~( ^; O, s! c