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/ b) w0 _8 I% f; `$ `/ E* L
incorporating tubular sheathed or embedded heating elements. However, controls are not 0 v$ C" e! e4 v) fshort-circuited but one end of the element is connected to the sheath of the heating element.% S) j) [. A3 M! r
This test is repeated with the polarity of the supply to the appliance reversed and with the ! b* Z" l9 v5 u; W" oother end of the element connected to the sheath. - ]5 X, ?7 J- A* i) K4 Y1 {7 tThe test is not carried out on appliances intended to be permanently connected to fixed wiring 4 U* Y) [; r* e; `3 O( m5 Jand on appliances where an all-pole disconnection occurs during the test of 19.4. . m* v# q0 `4 U. M4 P& _Appliances with a neutral are tested with the neutral connected to the sheath. ( w. ?2 x3 L9 XNOTE For embedded heating elements, the metal enclosure is considered to be the sheath. ' {- N( H# h2 b2 o+ v; F% O1 m什么意思三相三线的取暖器需要测试吗 5 _3 H+ h$ N& H9 i怎么测试 + J# B. }' p+ m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! y/ v, h {" ^' B% z6 \9 I
– intended to be permanently connected to fixed wiring and on appliances ; 4 p+ A" ~5 ~: ?6 S– where an all-pole disconnection occurs during the test of 19.4; or 9 K6 J' h. ]9 h7 W5 W! E8 f& t- R– used in a system with polarized plugs intended for connection to polarized socket outlets - L Z# q# N4 B E$ I, U当然你也看看Part-2 标准，有否规定这个测试适用你的产品 . W d, H; I/ _' [作者: jtt1471025811 时间: 2024-2-28 13:42
village 发表于 2024-2-20 15:17 . T6 a# K" I+ Y; h) e4 S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# {' }& _, @& Z0 [& p
– i ...