Cut Sheet

Tuesday, August 24, 2004 Comparison of the Lighting Requirements of IECC.doc Page 3 of 4
Tandem Wiring 9.2.2 Covers:
• 1 or 3 lamp linear fluorescent > 30W
Exceptions:
• Recessed luminaires > 10’ apart
• Surface or pendant mounted luminaires that are
not continuous
• Luminaires using single-or-three-lamp high
frequency electronic ballasts (or 3 lamp
electromagnetic)
• Luminaires on an emergency circuit
• Luminaires with no available pair
805.3 Covers:
• 1 or 3 lamp linear fluorescent > 30W
Exceptions:
• Recessed luminaires > 10’ apart
• Surface or pendant mounted luminaires > 1’
apart
• Luminaires using single-or-three-lamp high
frequency electronic ballasts
• Luminaires on an emergency circuit
• Luminaires with no available pair
Exit Signs 9.2.3 Covers:
• Exit sign luminaires > 20W
Requires:
• 35 LPW
NOTE: Addendum AI changes this to match IECC
805.4 Requires:
• ≤ 5W/side
Light Reduction NONE 805.2.2.1 Requires occupant being able to reduce
connected lighting load by at least 50% by:
• Controlling all lamps or luminaires, or
• Dual switching of alternate rows, luminaires or
lamps, or
• Switching middle lamps, or
• Switching each lamp or luminaire
Exceptions:
• Areas with only 1 luminaire
• Areas controlled by occupancy sensing
• Corridors, storerooms, restrooms or public
lobbies
Interior Lighting
Power
9.2.4 Uses:
• Building Area Method, or
• Space-by-Space Method
805.5 Uses:
• Entire building method, or
• Tenant area or portion of building method
IECC-2003 lower than 90.1-2001.
IECC-2003 and 90.1-2004 are
equivalent n most cases.. Both use
equivalent adders for decorative, VDT
and retail display lighting.