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|  PDSH 9905 Q/ ^- ?3 S, \. J* K
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| Fire resistance of material retaining live parts in position) s- [# b' y# i' g/ X- u
| 17.5
! N2 F7 a3 u$ r; r | 60400(ed.5);am1;am2 & 60400(ed.6);am1;am2 & 60400(ed.7);am1
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Standard(s):! a: N7 f1 v3 m0 ]
IEC 60400 All editions) l N, d* ^ E8 S
Subclause(s): 17.5: @4 l- @0 r8 ~: }
No. Year PDSH 0990 2010
7 i9 q6 X! P( F# K1 |Category: LITE Developed by: ETF5 OSM/LUM
" [7 b2 m4 F% o( s% b! a e( pSubject:
, _; o, t+ e, H( M0 |Fire resistance of material retaining live parts in position
! h& c8 j8 p/ ?0 u- L5 HKey words:
6 t2 T- l* c# @: }) r8 T- Integrated lampholders% b1 [" n. e$ O- h, W' I
- Fire resistance9 u% g% i; C2 C0 L. Y" o/ c
- PCBs
3 l8 ?6 a4 n( P* L! BTo be approved at the 49th CTL Plenary Meeting, in 2012
" e, X9 U9 \% W" j# V4 VQuestion:! I9 v- W" c1 d. X; @
Consider a gear box of a down light with integrated GX 24 lampholders. In such a gear box the
2 p! Y3 e9 O7 J! E& v0 g6 L Jlampholder housing and lamp retention are both parts of the gear box front. The lampholder contacts are
* g4 S* B% O$ Ithen fitted to the PCB of the electronic ballast.
r [8 `, a( H+ S/ t/ \& LHow do we apply the needle flame test in this case:. K( O/ r) _7 B s
- On the PCB only?) p9 ?5 B' ^% \
- On the complete lampholder, i.e. on the lampholder housing?
2 R! i+ e) m" {/ w1 Q' f+ dDecision:
/ M: b1 R. s5 }: G3 GThe needle flame is applied to the parts which retain current carrying parts in position. The surrounding
O/ o$ X; V' M: S e+ lparts must be kept in place during the tests.
8 T) F+ N# O9 o. Y4 [6 ^& |2 i4 p* U
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