标题: PDSH 799 Relays only operate to ensure appliances are energized for normal use [打印本页] 作者: 小米 时间: 2012-9-14 14:28 标题: PDSH 799 Relays only operate to ensure appliances are energized for normal use
Relays only operate to ensure appliances are energized for normal use . R! v* i ]$ m8 s7 {
19.14 - G6 {; C1 Y8 R" a1 C4 j5 H0 R
60335-1(ed.5) 6 ?" s- G9 `4 q9 h9 b+ o2 ~6 g5 k \
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Standard(s): IEC60335-1(2010) 9 U& d) O# T, F: k: gSubclause(s): 19.142 O* s& W3 \) c+ }& j; A
No. Year 20129 O! [/ S% c8 N U) K* \
PDSH 0799 $ f d* Z$ x. e: {; KCategory: HOUS8 {+ h3 |$ L6 A5 D+ }% m6 o4 n
Developed by: ETF 1 ) T* l5 u1 V% n# Z/ s* YSubject: Relays only operate to ensure appliances are energized for normal use' D: D; d. I" ?+ \# S+ J
Key words: ' d: C& i* t4 u7 w* S8 p4 Z- Short-circuit+ ~) O( Y% X1 H2 S- I, c
- Motor Start Relay/ z8 H, S/ y* u0 h
To be approved at the 2012 CTL Plenary Meeting0 q: V6 m7 A ~' D- Z4 L1 ? N/ H
Question:8 s: z" O8 U1 B$ {" E
The following is stated in the third paragraph of Sub-clause 19.14:: n& ]3 F2 l' }7 H2 p5 Q Z
“Any relay or contactor which operates only in order to ensure that the appliance is energized for 3 y! D7 {% P/ Q. P s9 `normal use and that does not otherwise operate in normal use is not short-circuited.” / n, t7 ?7 p3 s* {7 DIs the motor start relay shown below covered by those specified as “not short-circuited” in the third % O& f+ \) z5 u' q) \- Oparagraph of Sub-clause 19.14? - o2 {- X5 P6 k- r* nDecision:/ t7 g7 T5 |0 H3 ]7 p3 A
The motor start relay as shown above is not short-circuited./ a7 D) B) q# Z& {% k5 F
See also explanatory note. ) A, _; D( p/ }3 @+ e* r, Y " ~) I5 a+ d( I# E[attach]75967[/attach]) {9 v j8 L# t7 l
PDSH 799