60335-2-40 空调 条款22.110

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广东安规检测
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如题， 22.110 该如何理解？

22.110 Non-self-resetting thermal cut-outs designed to be replaced after their operation
  E( z* f! j8 mshall open the circuit in the intended manner without short-circuiting live parts of different
5 h" v3 C$ Y! ]potential and without causing live parts to come into contact with the enclosure.
" f- g, v9 N3 TCompliance is checked by the following test.
: ^, [1 |- a% GThe appliance is operated five times, each time with a new non-self-resetting thermal cutout,
+ J1 ]/ v: ]" }2 s( ]any other thermally operated control devices being short-circuited.
Each time, the thermal cut-out shall operate appropriately.
During the test, the enclosure of the appliance is connected to earth through a 3 A fuse; this
( ?* g0 p3 J- b! {' Wfuse shall not blow.
After this test, the supplementary heating elements shall withstand an electric strength test as
) t& u5 h1 b& }% ?# S. [6 hspecified in 16.3.

tarry

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。