204
The Lighting Handbook
Working mode/
shift type
Switch-on period
Days use/year
Hours/day Daylight-based
control
Burning hours
per lamp and year
in hours
24-h shift working,
Process monitoring/
control
365
365
24 h
24 h
No
Yes
8760 h
7300 h
Double shift,
6 days/week
310
310
16 h
16 h
No
Yes
4960 h
3720 h
Single shift,
6 days/week
310
310
10 h
10 h
No
Yes
3100 h
1760 h
Single shift,
5 days/week
258
258
10 h
10 h
No
Yes
2580 h
1550 h
Daylight-based control: the lamps switch automatically when there too little daylight available.
Data based the assumption that there sufficient available daylight for half the year.
From CIE publication “Maintenance indoor electric lighting systems”, dated 2005
Table burning hours
Maintenance lighting systems
