PDSH 990 Fire resistance of material retaining live parts in position

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PDSH 990 8 J& E& u5 T$ Y, V" S

Fire resistance of material retaining live parts in position / d2 s9 ?- O# w4 d

17.5

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

: R! i8 Y. P$ Z4 U2 I. L! K+ \Standard(s):
1 I0 o/ |3 G  fIEC 60400 All editions
Subclause(s): 17.5
No. Year PDSH 0990 2010
0 Y& I- Y; ^, i* t0 r4 t! OCategory: LITE Developed by: ETF5 OSM/LUM
' C. {8 F& I5 A' i' G" @1 ySubject:
Fire resistance of material retaining live parts in position
, _" m$ U; e7 u+ uKey words:
2 i( T' ~+ D. I  a8 |* F+ y+ w- Integrated lampholders
- Fire resistance
- PCBs
& Q; s" k; v8 b) q3 tTo be approved at the 49th CTL Plenary Meeting, in 2012
Question:
, _0 g+ I" v, O$ }" uConsider a gear box of a down light with integrated GX 24 lampholders. In such a gear box the
, S! R( |6 q5 P) d  n- `2 R6 j! }lampholder housing and lamp retention are both parts of the gear box front. The lampholder contacts are
/ y: D% V9 e4 R% R- D6 k9 ~then fitted to the PCB of the electronic ballast.
How do we apply the needle flame test in this case:
- On the PCB only?
- On the complete lampholder, i.e. on the lampholder housing?
. J7 J: b3 L; q- X3 i8 |& _' TDecision:
The needle flame is applied to the parts which retain current carrying parts in position. The surrounding
parts must be kept in place during the tests.
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