Commercial Interior Space Designing II

Commercial Interior Space Designing-II 4(1+3)

Lesson 9:Lighting arrangement for public building

Steps to designing good task lighting

Design ambient lighting systems before designing systems to accommodate the other lighting types.

Define the reason for the lighting.

• Ambient- circulation and general lighting
  
• Task- areas where detailed work is done
  
• Accent- architectural use only (minimal)
  
• Safety or emergency egress lighting

Design the ambient lighting system.

• Define day lighting zones
  
• Define occupancy sensor zones
  
• Determine minimum ambient lighting levels

Select lighting fixtures

• Design the task lighting system.
  
• Determine where task lighting is needed
  
• Balance task and ambient lighting levels
  
• Provide automatic and manual controls

Design the accent lighting system.

• Limit the amount of accent lighting
  
• Use occupancy sensors to control accent lighting
  
• Select low-energy fixtures
  
• Reduce ambient light levels when there is accent lighting

Design the safety lighting system.

• Select low-energy safety lighting fixtures
  
• Operate safety lighting only when needed
  
• Place all safety lighting on separate lighting circuits

Design the lighting control system, using automatic and dimmable controls.