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
; c- u9 F  ~2 ~short-circuited but one end of the element is connected to the sheath of the heating element.
8 C4 q' j( Z' C5 d( mThis 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.
; ^& E1 C9 b" l$ R2 ^8 gThe test is not carried out on appliances intended to be permanently connected to fixed wiring
3 J8 C1 l: G$ E: Y, M% Yand on appliances where an all-pole disconnection occurs during the test of 19.4.
: I% N7 o1 P1 T$ o, ]) \Appliances with a neutral are tested with the neutral connected to the sheath.
8 G. t& x, ]1 c, X% zNOTE For embedded heating elements, the metal enclosure is considered to be the sheath.
什么意思三相三线的取暖器需要测试吗
怎么测试
. g# {8 g+ p/ y

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 ;
( x) }  m. b! \" ^2 R5 v– where an all-pole disconnection occurs during the test of 19.4; or
; t% N" R& F8 W- h3 f" @2 Z0 _; o6 n9 ^! s– 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

jtt1471025811

village 发表于 2024-2-20 15:17
" W& e/ v6 ?5 e) H3 J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
4 k2 z0 A" h, I– i ...

2 ~. q" a/ A0 E' K1 T% N. W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。