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 5 v% l+ m, ]3 D* kincorporating tubular sheathed or embedded heating elements. However, controls are not 2 s" q( ]! Y/ q0 \5 U" M8 k! z9 u
short-circuited but one end of the element is connected to the sheath of the heating element. " j6 K& S; D7 n( S! jThis test is repeated with the polarity of the supply to the appliance reversed and with the 4 ]8 f' r, s- |! N! Y3 }! W+ L
other end of the element connected to the sheath. , B. r2 C: O4 yThe test is not carried out on appliances intended to be permanently connected to fixed wiring ! V' N# x4 I9 D X$ U- G- S7 U
and on appliances where an all-pole disconnection occurs during the test of 19.4. 0 O! c! v' W4 a) j
Appliances with a neutral are tested with the neutral connected to the sheath. - i7 i$ E7 p H0 p0 k
NOTE For embedded heating elements, the metal enclosure is considered to be the sheath. 9 D* a* U4 p- M$ W什么意思三相三线的取暖器需要测试吗; c* k* z! F K! l
怎么测试 W3 Y0 O8 |, w7 I) X6 | 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 # }9 v' h) R" H# K5 B i– intended to be permanently connected to fixed wiring and on appliances ; , X: ?, |, y. E( m2 {- s6 u) k8 r
– where an all-pole disconnection occurs during the test of 19.4; or , m' T6 T8 A) C$ d+ N* A0 Y& B& j# t– used in a system with polarized plugs intended for connection to polarized socket outlets ! g j8 J: N- H0 s* P- }) r% w' ~当然你也看看Part-2 标准，有否规定这个测试适用你的产品2 \* Y) A" W- q; V 作者: jtt1471025811 时间: 2024-2-28 13:42
village 发表于 2024-2-20 15:17 o4 `' `& N x) H4 \" w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 * q, x) I9 r$ `- d( _– i ...