标题: EN-60335-1 19.5 [打印本页] 作者: SUNNER4 时间: 2021-10-20 16:08 标题: EN-60335-1 19.5 19.5 The test of 19.4 is repeated on class 0I appliances and class I appliances , X) ^' W, e3 _incorporating tubular sheathed or embedded heating elements. However, controls are not 0 ~6 T% f5 q7 ?short-circuited but one end of the element is connected to the sheath of the heating element.8 c% n: \- o. u+ @$ [& C4 o
This test is repeated with the polarity of the supply to the appliance reversed and with the ' _, B# l/ f- J+ j$ Cother end of the element connected to the sheath. 1 g a' k5 A# o
The test is not carried out on appliances intended to be permanently connected to fixed wiring ; |4 u$ Q, L- `and on appliances where an all-pole disconnection occurs during the test of 19.4. + x& J8 t& v- H( P- {" DAppliances with a neutral are tested with the neutral connected to the sheath. 8 \; A: ], e0 ?% G: }NOTE For embedded heating elements, the metal enclosure is considered to be the sheath.6 }- X9 e' X5 Z" t; r* q/ i4 F. {9 `* h
什么意思三相三线的取暖器需要测试吗! U2 p: z7 k, H
怎么测试4 @- I1 e. l, G9 \0 b 作者: village 时间: 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 2 k7 a9 R" d3 W$ T- x– intended to be permanently connected to fixed wiring and on appliances ; 2 c. ` ]/ e' O( o7 d' X' ^
– where an all-pole disconnection occurs during the test of 19.4; or# m U4 p7 ~$ @2 Y9 S/ S* N
– used in a system with polarized plugs intended for connection to polarized socket outlets. T5 u# S5 E4 T, J+ s2 t
当然你也看看Part-2 标准，有否规定这个测试适用你的产品' p. r6 z7 r$ t$ I( b2 @! p 作者: jtt1471025811 时间: 2024-2-28 13:42
village 发表于 2024-2-20 15:172 P% O. ?( X9 b' j5 F, }
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6 H% n3 o; S- ]6 t) {$ m8 m
– i ...