PDSH 982 Ballast Lumen Factor (BLF) and flux output measurement after 500 ON-OFF
http://decisions.iecee.org/icons/ecblank.gif PDSH 982
Ballast Lumen Factor (BLF) and flux output measurement after 500 ON-OFF changeover operations
22.17.2 – 22.17.3 / 20
60598-2-22(ed.3);am1;am2 & 61347-2-7(ed.2)
Standard(s):
IEC 61347-2-7/2006
IEC 60598-2-22/1997 A1/2002 A2/2008
Subclause(s): 20 22.17.2 – 22.17.3
No. Year PDSH 0982 2010
Category: LITE Developed by: ETF5 OSM/LUM
Subject:
Ballast Lumen Factor (BLF) and flux output measurement after 500 ON-OFF changeover operations
Key words:
- Ballast Lumen Factor (BLF)
- Flux measurement
- Changeover operations
To be approved at the 49th CTL Plenary Meeting, in 2012
Question:
§ 22.17.2 of IEC 60598-2-22 states – “after these cycles (500 on-off’s) the supply shall again be reduced
to 0,6 times rated voltage and the luminaire shall provide the rated lumen output after 60s or respective
lamp current after 0,5s for high-risk task area lighting luminaires”. Further, § 22.17.3 states – “after the
final lumen output measurement in accordance with § 22.17.2…”. It is fairly evident that the rated flux of
the luminaire shall take into account the flux measurement after these 500 changeover operations. § 20 of
IEC 61347-2-7 states – “the changeover from normal supply to emergency mode and back shall be in
accordance with 22.17 of IEC 60598-2-22”. Does this mean that BLF should be measured after the 500
on-off’s changeover operations, exactly the same way as flux output for emergency luminaires specified
in 22.17 of IEC 60598-2-22?
Decision:
Yes, for the time being. (The matter is under discussion in COMEX).
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