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
incorporating tubular sheathed or embedded heating elements. However, controls are not
  x7 C  [) o, N5 Y) s! Xshort-circuited but one end of the element is connected to the sheath of the heating element.
1 j( c7 l( h0 M$ |This test is repeated with the polarity of the supply to the appliance reversed and with the
* w! T6 O8 U/ l' c8 F, i4 lother end of the element connected to the sheath.
The test is not carried out on appliances intended to be permanently connected to fixed wiring
; G3 @6 u) d- h2 S3 K' p  Yand on appliances where an all-pole disconnection occurs during the test of 19.4.
( s5 P1 X) H; D; h% n! a, r" N9 w5 f; fAppliances with a neutral are tested with the neutral connected to the sheath.
NOTE For embedded heating elements, the metal enclosure is considered to be the sheath.
) I9 {; ~! R4 A8 Q% E* O什么意思三相三线的取暖器需要测试吗
3 Y8 Z8 I- T. d. Z# o怎么测试
) N% ]& o; y0 e, F  `- V

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
) \/ Q) M$ y" `1 L) g2 I& W5 _– intended to be permanently connected to fixed wiring and on appliances ;
– where an all-pole disconnection occurs during the test of 19.4; or
4 ?, H9 I/ M9 s$ c0 ^; Q9 u/ C– used in a system with polarized plugs intended for connection to polarized socket outlets
当然你也看看Part-2 标准，有否规定这个测试适用你的产品
, `% p6 R4 M* s2 _4 o( M

jtt1471025811

village 发表于 2024-2-20 15:17
$ Y" ^* p2 _- \% 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
& k6 c! |2 j9 v" h, h" _- |" U– i ...

* u# F3 |2 A1 t: v/ N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。