PDSH 971 Classification of self contained emergency luminaires according to the

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PDSH 971 ; ~% W( I! e( u  G1 N( z

Classification of self contained emergency luminaires according to the mode of operation 2 D+ v# r$ }" s, U' i4 M% X  u

22.4

60598-2-22(ed.3);am1;am2

' H0 Y, j9 U+ h' {, r, ^- @* V% S( ZStandard(s):
4 ^/ C7 a6 y  F$ s5 U: [* MIEC 60598-2-22/1997 A1/2002 A2/2008
Subclause(s): 22.4
No. Year PDSH 0971 2010
3 B6 z1 P1 k4 r  a$ t. k: a7 ^7 tCategory: LITE Developed by: ETF5 OSM/LUM
3 z/ Q  H; p; P% W5 p1 j9 U; lSubject:
Classification of self contained emergency luminaires according to the mode of operation
Key words:
2 z4 m' m0 d" C- T- Maintained emergency luminaire
- Non maintained emergency luminaire
- Mode of operation
To be approved at the 49th CTL Plenary Meeting, in 2012
Question:
% p  ]/ B+ h4 {' eAccording to the definition 22.3.5, “Maintained emergency luminaire is a luminaire in which the
emergency lighting lamp is energized at all times when normal or emergency lighting is required”. Can
. b* q0 b6 F$ {the emergency lighting lamp of a self contained emergency luminaire classified as “maintained
6 Z' u( ~2 y3 a; r) qemergency luminaire”, be switched on and off with an external switch in the installation? The question is
asked because if the lamp is switched off when the supply is present, the luminaire can be seen as a “non
& M% `* b# {& T7 K) `( n" Xmaintained emergency luminaire”.
Decision:
Yes, only during the normal lighting operation.

, r+ s) L' p7 ]* e- X& ]! T