22 August 2006
Some inefficient light sources are prohibited. Refer to Lamps in Chapter
5, "Lighting Equipment" for prohibited light sources.
Minimize light pollution and light trespass by not overlighting and using
shielded exterior luminaires. Refer to Chapter 3, "Sustainability Issues
Evaluate sustainable measures using life cycle cost analysis rather than
initial cost comparisons. Refer to Chapter 3, "Sustainability Issues
Light sources containing mercury should be recycled. Refer to Chapter 3,
"Sustainability Issues Material Issues". This cost must be included in a
life cycle cost analysis.
Considerations for sustainable design:
Consider daylighting techniques. Refer to Chapter 3, "Sustainability
Issues" and Chapter 4, "Daylighting". If daylight strategies are used,
additional coordination is required with the architect and mechanical
engineer. Additionally, electric lighting controls must be incorporated to
take advantage of the potential energy savings.
In most exterior applications, security is best achieved by reducing glare. In
some circumstances such as entries and checkpoints, glare can be used to increase
vertical illuminance on approaching vehicles or individuals while increasing visibility for
guards and patrols. Refer to MIL-HDBK-1013/1A and UFC 4-011-02.
Inventory Minimization. Consolidate lamp types across luminaire types to
minimize the number of various lamps that need to be stocked by maintenance. When
designing lighting systems for a facility, carefully consider trade-offs between specifying
the most appropriate wattage lamp and introducing too many lamp types on a project.
This may include maximizing the use of 4 ft (1.2 m) linear fluorescent lamps.
Group Re-lamping involves replacing all of the lamps in a particular area after
a specified time of operation rather than spot re-lamping as individual lamps burn out.
The benefits of this approach include a more consistent light level and reduced
maintenance costs, especially in areas that require lifts or scaffolding for lamp
Accessibility. When designing lighting systems, especially in high ceiling
areas such as atriums, make provisions for maintenance access and lamp replacement.
Wall mounted indirect luminaires are easier to access than downlights. Lowering
devices may lower pendants to the floor for maintenance. Provide safety hooks for