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

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PDSH 799 . G: q9 I5 s8 Z, t% ?: W6 X

Relays only operate to ensure appliances are energized for normal use 7 F9 }8 d" }( M7 b

19.14

60335-1(ed.5)

  u7 ?! k" X7 d* e1 c, vStandard(s): IEC60335-1(2010)
4 H4 l/ W) _' M5 F9 z1 O: B+ ~. E9 FSubclause(s): 19.14
No. Year 2012
8 Q$ F( a& W) h& F( Q$ E* `PDSH 0799
Category: HOUS
7 o4 g+ [4 Z6 k# \; n5 [Developed by: ETF 1
Subject: Relays only operate to ensure appliances are energized for normal use
Key words:
- Short-circuit
- Motor Start Relay
9 d6 r, U8 x) P5 J/ _2 A/ ]To be approved at the 2012 CTL Plenary Meeting
2 ~: u6 F8 K- }Question:
5 d  R) T/ X/ p  {7 dThe following is stated in the third paragraph of Sub-clause 19.14:
; E% s. B8 n4 s, d8 d“Any relay or contactor which operates only in order to ensure that the appliance is energized for
& F9 t1 ~5 ^: A" {4 Rnormal use and that does not otherwise operate in normal use is not short-circuited.”
Is the motor start relay shown below covered by those specified as “not short-circuited” in the third
( [: m/ G; R. ?* {0 ~paragraph of Sub-clause 19.14?
0 g- Y/ g8 w- W( _8 iDecision:
& u" V/ O0 d) Z; a8 ~# }The motor start relay as shown above is not short-circuited.
See also explanatory note.


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