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 / U/ A! e$ L2 u! c6 ]. B
19.14( b( k; M' Q% j8 I
60335-1(ed.5) " I( k- y' w& |
! ]* a3 n, t' a4 AStandard(s): IEC60335-1(2010)6 f5 H% |. p V% M- p3 L
Subclause(s): 19.14 9 C0 u) m. G u# x$ _" h: jNo. Year 2012 5 `! [7 _4 X* J) r* RPDSH 0799 $ B, L. d! ~) ^/ a$ jCategory: HOUS 2 G. M+ s" i; o" g( pDeveloped by: ETF 1; C) J0 A5 Y- ~9 |. E+ H
Subject: Relays only operate to ensure appliances are energized for normal use# o( L& L: W0 B+ Q; I
Key words: . K6 v" |1 A+ y# E9 {# g) K- Short-circuit 3 I4 }1 [) Y$ A- Motor Start Relay 8 ]. P8 O2 X- j9 O Q9 Z+ H3 f$ @To be approved at the 2012 CTL Plenary Meeting _$ D7 i4 N2 B6 EQuestion:# U4 j0 F% i7 m) x4 J: G
The following is stated in the third paragraph of Sub-clause 19.14:# D& W4 |7 \) t, T
“Any relay or contactor which operates only in order to ensure that the appliance is energized for 5 l* u$ ^/ u: T2 Tnormal use and that does not otherwise operate in normal use is not short-circuited.” & g* G5 T7 e' J7 U* u5 `; l( ~Is the motor start relay shown below covered by those specified as “not short-circuited” in the third # @4 m6 c {9 F1 R$ z9 Kparagraph of Sub-clause 19.14?8 m( [6 P/ S$ ]) t1 L
Decision: 2 P- L/ ]7 v0 d9 }2 t0 Z- dThe motor start relay as shown above is not short-circuited." H1 @ R, }8 K% D
See also explanatory note. " R, e, O7 Y- i e: ^& }3 j& p# v" { 7 _: Q- b, V {[attach]75967[/attach] . w* `( q; d+ |
PDSH 799