PDSH 977 Batteries characteristics
http://decisions.iecee.org/icons/ecblank.gif PDSH 977
Batteries characteristics
22.6.8 – Annex A
60598-2-22(ed.3);am1;am2
Standard(s):
IEC 60598-2-22/1997 A1/2002 A2/2008
Subclause(s): 22.6.8 – Annex A
No. Year PDSH 0977 2010
Category: LITE Developed by: ETF5 OSM/LUM
Subject:
Batteries characteristics
Key words:
- Manufacturer
- Ni-Mh batteries
- Life time/temperature
To be approved at the 49th CTL Plenary Meeting, in 2012
Question:
The standard requires that batteries incorporated in emergency luminaires shall be of sealed nickel
cadmium, valve regulated lead acid or other types conforming to the relevant safety and performance
standard for the battery type and all relevant requirements of IEC 60598-2-22. Annex A, sub clauses A4
and A5 prescribe for Ni Cd and lead acid batteries, the limits within which the battery in the luminaire
shall operate. How can it be checked that e.g. Ni-Mh (Nickel-Metalhydrid) batteries guarantee at least
four years of normal operation?
Decision:
The life time/temperature curve of Ni-Mh batteries, provided by the manufacturer, shall be used.
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