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.
From CIE publication “Maintenance indoor electric lighting systems”, dated 2005
Table burning hours
Maintenance lighting systems
.
Data based the assumption that there sufficient available daylight for half the year
