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 ]& w; {% ]1 D
incorporating tubular sheathed or embedded heating elements. However, controls are not - F* r8 n" |% W. ?short-circuited but one end of the element is connected to the sheath of the heating element. 1 K1 F& p) Y; ~" KThis test is repeated with the polarity of the supply to the appliance reversed and with the # C j9 J: b& a$ J) zother end of the element connected to the sheath. ( J) N2 t/ d2 a1 s3 O. tThe test is not carried out on appliances intended to be permanently connected to fixed wiring 7 }. c; a. y2 g# A/ R9 k
and on appliances where an all-pole disconnection occurs during the test of 19.4. + y, R- h1 I8 L6 x" sAppliances with a neutral are tested with the neutral connected to the sheath. & h' s% h- `/ G6 [NOTE For embedded heating elements, the metal enclosure is considered to be the sheath. 0 a$ y& h9 L5 _4 {什么意思三相三线的取暖器需要测试吗 , A- r) x7 e7 K* L0 i. ?: S怎么测试 & T7 i8 G! U2 g2 e B4 P3 N6 {. X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 & v/ y- O; [/ l) b4 w4 a* I– intended to be permanently connected to fixed wiring and on appliances ; 8 h% J9 a' G4 U4 q7 p5 }
– where an all-pole disconnection occurs during the test of 19.4; or$ m1 ~# R- q/ |5 o* M$ q, w
– used in a system with polarized plugs intended for connection to polarized socket outlets$ w' G4 ?! w2 I5 X6 m5 N) a1 J
当然你也看看Part-2 标准，有否规定这个测试适用你的产品+ L j5 G8 N! R; F 作者: jtt1471025811 时间: 2024-2-28 13:42
village 发表于 2024-2-20 15:17 2 F4 K9 i& t) N+ o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. W. y; f, x8 z2 Z( _7 w* J. U
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