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|  PDSH 799
- e. i ]+ @- n5 l- M# d2 z0 `1 X0 I# n+ \$ a0 {2 `
| Relays only operate to ensure appliances are energized for normal use% ~" T! v7 n1 d; n
| 19.14+ R1 L0 F4 y/ z/ N( w( T; @( a
| 60335-1(ed.5)7 I. \& B' B4 c/ q* @" U
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Standard(s): IEC60335-1(2010)
2 q5 u/ h/ S- N4 O/ {0 F5 d" u# LSubclause(s): 19.14
" Y, R3 c4 Y7 }0 F% q8 bNo. Year 2012
* Q1 _; @3 {* RPDSH 0799
+ K+ ?1 n1 l/ i; jCategory: HOUS- i& |' |* ^. e. E
Developed by: ETF 1
* E6 w O% f2 WSubject: Relays only operate to ensure appliances are energized for normal use6 H Z$ i7 I2 Z
Key words:; r9 Y! G/ S( D8 ~
- Short-circuit5 n: p! N5 q, ^: T
- Motor Start Relay
8 f% ?1 ?0 P, W: c+ K5 dTo be approved at the 2012 CTL Plenary Meeting$ @+ _4 r; Y; ~: L) r' u
Question:2 K- |0 t# s5 \7 H8 @- j
The following is stated in the third paragraph of Sub-clause 19.14:
* [9 h- i5 ^6 O2 j“Any relay or contactor which operates only in order to ensure that the appliance is energized for
" V9 [. f* v' k1 ] w$ l1 g0 v' inormal use and that does not otherwise operate in normal use is not short-circuited.”2 f; k1 C6 U9 K3 s
Is the motor start relay shown below covered by those specified as “not short-circuited” in the third
7 h" k+ I* t6 Q+ Uparagraph of Sub-clause 19.14?* ]3 c/ S% f" @2 a: W y( l* M9 M' R
Decision:
: l4 X! }2 p$ W$ P+ d) G" eThe motor start relay as shown above is not short-circuited.- V% t3 p8 y. W5 |4 A; R. B2 c
See also explanatory note.
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发表于 2012-9-14 14:28
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