EN-60335-1 19.5

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广东安规检测
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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
& A1 d2 |! `1 X% O( }incorporating tubular sheathed or embedded heating elements. However, controls are not
( P; K8 P7 X' B/ e( bshort-circuited but one end of the element is connected to the sheath of the heating element.
! d: b1 p, E6 c2 |; eThis test is repeated with the polarity of the supply to the appliance reversed and with the
5 @4 b2 e5 p7 q+ Mother end of the element connected to the sheath.
! {$ x- S% K/ m% B7 HThe test is not carried out on appliances intended to be permanently connected to fixed wiring
8 z7 S+ c7 X8 b9 t& `) U4 M* [and on appliances where an all-pole disconnection occurs during the test of 19.4.
* G: [/ j  `* n7 o1 D4 LAppliances 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.
7 D0 j" \( P; A8 Y什么意思三相三线的取暖器需要测试吗
怎么测试
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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 ;
– 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
当然你也看看Part-2 标准，有否规定这个测试适用你的产品
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jtt1471025811

village 发表于 2024-2-20 15:17
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
( B/ A4 H' \- [2 B' M– 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。