EN-60335-1 19.5

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IEC60335试验指甲

19.5 The test of 19.4 is repeated on class 0I appliances and class I appliances
% s4 ~$ X( v3 _$ P$ |  Pincorporating tubular sheathed or embedded heating elements. However, controls are not
short-circuited but one end of the element is connected to the sheath of the heating element.
, g2 g8 `3 G6 T7 f" vThis test is repeated with the polarity of the supply to the appliance reversed and with the
other end of the element connected to the sheath.
  q: K9 ~3 Y/ |& E! SThe test is not carried out on appliances intended to be permanently connected to fixed wiring
8 N. I; y, {: kand on appliances where an all-pole disconnection occurs during the test of 19.4.
Appliances with a neutral are tested with the neutral connected to the sheath.
. t4 ~$ j2 `% E/ E  Z! fNOTE For embedded heating elements, the metal enclosure is considered to be the sheath.
  j! x( h: y0 x, D什么意思三相三线的取暖器需要测试吗
' u7 y" x# D0 M- V怎么测试
1 a$ ^1 [8 f+ S4 G) o# i  Q

village

一类电器不管, 或单相产品，还是三相，这个测试是原则适用的用的，除非是产品是符合以下任何一种情况
– intended to be permanently connected to fixed wiring and on appliances ;
5 ~! \, m' N7 j' c* F# D– where an all-pole disconnection occurs during the test of 19.4; or
– used in a system with polarized plugs intended for connection to polarized socket outlets
* M' N0 h8 l% B7 J! n5 j" f, n当然你也看看Part-2 标准，有否规定这个测试适用你的产品
, {8 b0 B3 _/ Z, V2 m$ Z3 n# Q

jtt1471025811

village 发表于 2024-2-20 15:17
3 N/ k+ ~5 j8 X+ @( h一类电器不管, 或单相产品，还是三相，这个测试是原则适用的用的，除非是产品是符合以下任何一种情况
– i ...

大佬说的对

浪漫罗丹

正常按照标准要求来做19.5很难实现，好像产品不工作（比如发热管接N的端子接到发热管外壳即接地，接L的端子正常接到火线）。所以正常来说发热管两端都加保护使得19.4的时候发热管全极断开来规避19.5.

xiangxc315

发热体类型符合就要考核测试，当然标准豁免的情况不用测。