PDSH 799 Relays only operate to ensure appliances are energized for normal use

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PDSH 799 & p9 g9 P% a  h/ b

Relays only operate to ensure appliances are energized for normal use

19.14

60335-1(ed.5) ( \# N" [6 d) D

5 x7 V$ l! F: w: W9 a4 g4 pStandard(s): IEC60335-1(2010)
Subclause(s): 19.14
" d7 c0 G- F6 Y: p2 M5 h) S; K" @. ZNo. Year 2012
PDSH 0799
! d8 t" ~* e$ QCategory: HOUS
) G( [: i( B! XDeveloped by: ETF 1
Subject: Relays only operate to ensure appliances are energized for normal use
Key words:
- Short-circuit
& a! r5 z7 r& O4 m- Motor Start Relay
* L8 p7 g1 Y/ P7 C, ]1 O- aTo be approved at the 2012 CTL Plenary Meeting
Question:
The following is stated in the third paragraph of Sub-clause 19.14:
( Y5 `, h0 @! d" G“Any relay or contactor which operates only in order to ensure that the appliance is energized for
, e0 D" J2 S4 |/ m3 Fnormal use and that does not otherwise operate in normal use is not short-circuited.”
# ~& u1 l4 \& F  cIs the motor start relay shown below covered by those specified as “not short-circuited” in the third
paragraph of Sub-clause 19.14?
6 _. U$ y6 a1 eDecision:
/ p  }4 b+ d" t) I' s1 r1 v$ c( BThe motor start relay as shown above is not short-circuited.
2 V" K  w; X- k- J2 i0 v& K2 lSee also explanatory note.


, X% R4 B; L2 w% q  o