PDSH 990 Fire resistance of material retaining live parts in position

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PDSH 990 5 D' J. F% |5 k% X

Fire resistance of material retaining live parts in position . y- n, }  H7 w% W! s' `

17.5

60400(ed.5);am1;am2 & 60400(ed.6);am1;am2 & 60400(ed.7);am1

Standard(s):
" B: F+ |# {7 V$ r9 F. b5 PIEC 60400 All editions
Subclause(s): 17.5
" K, t9 I# h$ rNo. Year PDSH 0990 2010
# x/ {7 [- `- M4 i& `( W2 c$ cCategory: LITE Developed by: ETF5 OSM/LUM
3 p0 [! r6 `' xSubject:
2 `' F% m- d" d  W7 |Fire resistance of material retaining live parts in position
0 C5 t5 `( n7 ~7 lKey words:
- Integrated lampholders
- Fire resistance
- PCBs
+ ]6 X+ I. y+ ?1 l  N3 a  NTo be approved at the 49th CTL Plenary Meeting, in 2012
Question:
Consider a gear box of a down light with integrated GX 24 lampholders. In such a gear box the
lampholder housing and lamp retention are both parts of the gear box front. The lampholder contacts are
) f5 x! B  U$ g/ l1 E4 T* wthen fitted to the PCB of the electronic ballast.
, Z/ b# N' [6 m" i6 f- WHow do we apply the needle flame test in this case:
- On the PCB only?
- On the complete lampholder, i.e. on the lampholder housing?
Decision:
The needle flame is applied to the parts which retain current carrying parts in position. The surrounding
- B; b8 @& j) X- z" `4 P6 kparts must be kept in place during the tests.
) e' X+ e  T2 C2 {