某电水壶装有2个自复位的热断路器，试验中出现了这种故障，能否接受？

Reference 

参考号

Date 日期

Provided to 提交至

NL-01 (Webmeetings 2020)

NL-01（网络会议2020）

2020.05.13

AG 28

Standard 标准

Subclause(s) 条款

Keywords 关键词

IEC 60335-2-15:2012 + A1:2016 + A2:2018

Self-resetting thermal cut-out自复位热断路器

Question 问题

Clause 19.102 which states the following:

19.102条款如下所述：

19.102 Kettles are placed on a plywood board having a thickness of approximately 20mm.

Kettles incorporating two self-resetting thermal cut-outs are operated with one of the thermal cut-outs short circuited. The kettle is operated empty at 0.85 times rated power input or 1,15 times rated power input, whichever is more unfavorable.

Within 2 s of the other thermal cut-out operating, the kettle is filled with water having a temperature of 15℃±5℃. After 1min, the kettle is emptied.

The test is carried out 100 times.

19.102  电水壶放置于一块厚约20mm的胶合板上。

带有2个自复位热断路器的电水壶，将其中一个热断路器短路后进行试验。电水壶在0.85倍额定功率或1.15倍额定功率下空载运行，两者取较不利情况。在另一个热断路器动作后的2s时间内，在电水壶注入温度为（15±5）℃的水。1min后将电水壶中的水倒掉。

试验进行100次。

The question is if the kettle that is subject to the 100 times test, shall be able to complete the 100 cycles or if it is acceptable that the appliance become defect (in a safe way) before the 100 cycles have been completed? We have been testing water kettles that during the 100 cycles test of 19.102 ceases to operate (the kettle becoming defect) but in a safe way (meaning the appliance meets 19.13 after the test of 19.102). 

问题是，经过100次测试的水壶是否能够完成100次循环，或者在100次循环完成之前，器具出现故障(以安全的方式)是否可以接受？我们已经测试了在19.102的100次循环测试中停止运行(水壶有缺陷)但以安全的方式(意味着器具在19.102的测试后满足19.13)停止运行的水壶。

The 100 cycles tests obviously aim to ensure the adequate and reliable operation of the TCO. From this perspective it seems important that the TCO is really tested for 100 cycles and not less than 100 cycles.

100次循环测试显然是为了确保TCO（温度控制装置）的充分和可靠运行。从这个角度来看，对TCO（温度控制装置）进行100个周期且不少于100个周期的测试似乎很重要。

However, the standard in many cases also allows the appliance to become defect if this happen in a safe way. Clause 19.1 (of part 1) states for instance: 

然而，在许多情况下，如果以安全的方式发生，标准也允许器具出现缺陷。以第1部分第19.1条举例说:

Unless otherwise specified, the tests are continued until a non-self-resetting thermal cut-out operates or until steady conditions are established. If a heating element or an intentionally weak part becomes permanently open-circuited, the relevant test is repeated on a second sample. This second test shall be terminated in the same mode unless the test is otherwise satisfactorily completed.

除非另有规定，否则试验一直持续到一个非自复位热断路器动作，或直到稳定状态建立。如果一个电热元件或一个预置的薄弱零件成为永久性开路，则要在第二个样品上重复有关试验。除非试验以其他方法满意地完成，否则应以同样的方式终止。

AG 28 Answer

AG28主席顾问团回答

TC 61 Decision

IEC/TC61决议