2006iecc com lighting

Commercial Lighting Requirementsof the 2006 International EnergyConservation Code: 

Commercial Lighting Requirements of the 2006 International Energy Conservation Code U.S. Department of Energy Building Energy Codes Program Eric Richman, PNNL Materials developed by: Eric Richman, PNNL and Britt/Makela Group, Inc.

What We Plan to Cover…: 

What We Plan to Cover… Some history and basis for energy codes and standards Why we have them Where they apply Specific Requirements Focus on IECC 2006 Comparisons with other codes/standards where applicable Intent and application The intent of major requirements What the requirements mean in actual practice

Some History: The Basis for Energy Requirements: 

Some History: The Basis for Energy Requirements Energy Conservation and Production Act, as amended, requires States to adopt a commercial energy code/standard that meets or exceeds ASHRAE/IESNA 90.1-1999 .…..This drives state adoption of energy codes Many code/standard versions available and currently adopted – varies by state: Some adopt nationally available codes/standards Some develop state-specific codes Some have no code!

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CODES FEDERAL Energy Codes/Standards 83 MEC 89 MEC 77 MCEC 90-1975 92 MEC 95 MEC 93 MEC 00 IECC 98 IECC 02 IECC 90.1-1999 01 IECC NFPA 900 03 IECC 90.1-2004 04 IECC 90.1-2001 90A-1980 86 MEC STANDARDS 10 CFR 435 FEDCOM 0 90.1-1989 90.2-1993 90.2-2001 90.2-2004 10 CFR 435 COSTSAFR FEDRES Codified 90.1-1989 06 IECC STATE SPECIFIC (Unique or based on a Code/Standard)

Commercial Lighting Requirements in IECC 2006: 

Commercial Lighting Requirements in IECC 2006 Commercial provisions contained in Chapter 5…with reference to ASHRAE 90.1-2004 Covers lighting controls and power density for interior and exterior Exception: Lighting within dwelling units Major changes in the 2006 version Revised Interior Lighting Power Allowances New Lighting Power Densities for Building Exteriors

The IECC Code Compliance Process: 

The IECC Code Compliance Process

Does My Project Need to Comply with the Commercial Requirements of IECC ?: 

Does My Project Need to Comply with the Commercial Requirements of IECC ? First: Is IECC (2006) the applicable code in your state or jurisdiction? …If yes, is the building commercial or high-rise residential other than: One- and two-family residential R-2, R-3, R-4 three stories or less in height

When do the Lighting and Power Requirements Apply?: 

When do the Lighting and Power Requirements Apply? Original Installed Lighting System in a New Building, Addition, or Tenant Build-out Existing Lighting System that is Altered Change in Occupancy that Increases Energy Exceptions: Historic buildings State or National listing Eligible to be listed Lighting within dwelling units

The IECC Code Compliance Process: 

The IECC Code Compliance Process

What’s Covered Under Electrical Power and Lighting System Requirements?: 

What’s Covered Under Electrical Power and Lighting System Requirements? Mandatory Interior Lighting requirements Required Controls Wattage/Efficiency Limits Interior Lighting Power Allowances (watts/ft2) Exterior Lighting Controls Required Controls Lamp Efficiency Exterior Lighting Power Allowances (watts/ft2) Electric Metering

Interior Lighting Control (505.2):Basic Control: 

Interior Lighting Control (505.2): Basic Control Independent Lighting Control required for each space surrounded by floor-to-ceiling partitions Must be located in the space served, - or - Switched from a remote location Must have indicator that identifies the lights served and their status (off or on) Exemptions Security or emergency areas that must be continuously lighted Lighting in stairways or corridors that are elements of the means of egress Intent: Allow occupants to control unneeded lighting!

Interior Lighting Control: Light Reduction: 

Interior Lighting Control: Light Reduction Light Reduction Controls must allow the occupant to reduce connected lighting By at least 50% In a reasonably uniform illumination pattern Intent: Allow occupants to moderate light levels to save energy! Note: Alternate Standard ASHRAE/IESNA 90.1-2004 does not require Light Reduction Control

Light Reduction Control Options: 

Light Reduction Control Options Alternating Luminaires Dimming Alternating lamps Controlling all lamps or luminaires Dual switching of alternate rows of luminaires, alternate luminaires or lamps Switching middle lamp luminaires independently from the outer lamps Each luminaire or each lamp

Interior Lighting Control: Light Reduction Exemptions: 

Interior Lighting Control: Light Reduction Exemptions Light Reduction Control Not required for the following: Areas with only one luminaire Areas controlled by occupancy sensor Corridors, storerooms, restrooms or public lobbies Sleeping units Spaces with <0.6 w/ft2

Interior Lighting Control: Automatic Shutoff: 

Interior Lighting Control: Automatic Shutoff Automatic lighting shutoff control device required in all buildings larger than 5,000 ft2 Building Defined: “Any structure used or intended for supporting or sheltering any use or occupancy” Building area surrounded by exterior walls and fire walls Exempted spaces Sleeping units Lighting for patient care When an automatic shutoff would endanger occupant safety or security Intent: Eliminate after hours lighting waste!

Interior Lighting Control: Automatic Shutoff Options: 

Interior Lighting Control: Automatic Shutoff Options Control lights on a scheduled basis (automatic time switch) Time-of-day controller Controls ≤ 25,000 ft2 and not more than one floor, or Occupant sensor Turn lights off within 30 minutes of occupant leaving the space Signal from another control or alarm that indicates the area is unoccupied Automatic Lighting Shutoff Compliance Options

Interior Lighting Control: Automatic Shutoff Override: 

Interior Lighting Control: Automatic Shutoff Override Automatic Time Switch Override Requirements Readily accessible Within view of the lights or area controlled Manually operated ≤ 2 hour override Controls an area ≤ 5,000 ft2 Exemptions to Override Requirements Can be over 2 hour override in malls and arcades, auditoriums, single-tenant retail space, industrial facilities and arenas when using captive key override Override in malls and arcades, auditoriums, single-tenant retail space, industrial facilities and arenas can cover up to 20,000 ft2

Interior Lighting Control: Holiday Scheduling: 

Interior Lighting Control: Holiday Scheduling Automatic Time Switch Holiday Scheduling Must have feature that turns off all loads for 24 hours then resumes the normally scheduled operation Retail stores and associated malls, restaurants, grocery stores, places of religious worship and theaters are exempt

Interior Lighting Control: Sleeping Unit Lighting Control: 

Interior Lighting Control: Sleeping Unit Lighting Control Sleeping Unit Control Applies to Hotel/Motel Guest Room, boarding houses, or similar Master switch required at each room or main room entry Must control all permanently wired luminaires or switched receptacles Intent: Allow occupant to turn off lights at exit point!

Tandem Wiring (505.3): 

Tandem Wiring (505.3) Tandem Wiring for all Odd Numbered Lamp Configurations Exceptions: Where electronic high frequency ballasts are used Luminaires on emergency circuits Luminaires with no available pair in the same area Intent: Eliminate the use of magnetic ballasts driving single lamps!

Exit Signs (505.4): 

Exit Signs (505.4) Exit Signs Internally illuminated exit signs shall not exceed 5 watts per side

Interior Lighting Power Limits (505.5): 

Interior Lighting Power Limits (505.5) Connected Interior Lighting Power must not exceed Interior Lighting Power Allowance Calculate Interior Lighting Power Allowance Building Area type allowance Additional allowances Calculate proposed connected lighting power Wattage calculation “rules” Exempted lighting Compare values: proposed wattage must be less than or equal to allowed wattage Intent: Eliminate waste from sloppy lighting design and application!

Interior Lighting Power Allowances: 

Interior Lighting Power Allowances New for the 2006 version: Building Area Type Only! Retail Additional Allowance Only! Note: Alternate Standard ASHRAE/IESNA 90.1-2004 provides whole building and space-by-space options This is a simplification of the previous 2003 version that included building and tenant area allowances plus decorative and medical additional allowances

Interior Lighting Power Allowance Calculation: 

Interior Lighting Power Allowance Calculation First, choose an appropriate “Building Area Type” from the allowance table (505.5.2). “Building Area” includes all spaces that are associated with that business or function type. For example a space with: Corridors, Restrooms, A lobby, and Office space …would be considered an office Building Area Type Then...multiply the lighting power density (W/ft2) by the building square footage to get allowed watts for compliance

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A 200,000 ft2 office building that contains corridor, restrooms, break rooms and a lobby is given 1.0 watt/ft2 for the entire building Office: 200,000 ft2 1.0 w/ft2 = 200,000 w Office - Example

Interior Lighting Power Allowance for Multiple Occupancy Building: 

Interior Lighting Power Allowance for Multiple Occupancy Building How is an allowance determined if the building has more than one Building Area Type? Example – A building contains the following area types Museum: 40,000 ft2 Retail: 5,000 ft2 Cafeteria: 10,000 ft2 Use the more specific building area type where more than one area type exists in the building Sum the individual (lighting power density X area square footage) values for Total Power Allowance

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Museum: 40,000 ft2 at 1.1 w/ft2 = 44,000 w Cafeteria:10,000 ft2 at 1.4 w/ft2 = 14,000 w Retail: 5,000 ft2 at 1.5 w/ft2 = 7,500 w Total watts allowed = 65,500 w Multiple Occupancy Building - Example

Additional Retail Lighting Power Allowance (Table 505.5.2 – Footnote “a”): 

Additional Retail Lighting Power Allowance (Table 505.5.2 – Footnote “a”) Lighting installed to “highlight specific merchandise…in addition to…general lighting” Additional lighting is added to the general lighting allowances Lighting for merchandise display Add additional 1.6 w/ft2 X display area Display area cannot exceed 50% of the floor area Lighting for displaying and selling jewelry, china and silver 3.9 w/ft2 X the actual case or shelf area Note: Display lighting must be switched or dimmed on separate circuit from general lighting Intent: Allow flexibility in design for critical retail applications!

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Museum: 40,000 ft2 at 1.1 w/ft2 = 44,000 w Cafeteria:10,000 ft2 at 1.4 w/ft2 = 14,000 w Retail: 5,000 ft2 at 1.5 w/ft2 = 7,500 w + retail allowance: Wall Display (10X40) = 400 ft2 at 1.6 w/ft2 = 640 w New Total Allowance = 66,140 w With Retail - Example

Proposed Lighting Power Calculation: 

Proposed Lighting Power Calculation Sum the wattage of all proposed connected lighting power This must include all lighting that is part of the design for the space including: Overhead lighting Task lighting Decorative lighting Note: Wattage must be calculated based on actual power draw…not just nominal lamp rating

Proposed Lighting Calculation: Example: 

Proposed Lighting Calculation: Example Lighting wattage must be documented in accordance with Section 505.5.1 Screw lamp holders: maximum rated wattage of the luminaire Low voltage lighting: transformer wattage Line voltage track: Use the GREATER of 30 w/linear foot or the actual wattage proposed for line-voltage track or plug-in busway lighting Other: manufacturer’s rated wattage of lamp and associated ballast

Exemptions to Proposed Lighting Power Calculation: 

Exemptions to Proposed Lighting Power Calculation What lighting can I exempt from the Proposed Lighting Power Calculation? Specialized medical, dental and research lighting Professional sports arena playing field lighting Display lighting for exhibits in galleries, museums and monuments Sleeping unit lighting in hotels, motels, boarding houses or similar buildings Emergency lighting automatically off during normal building operation

What if My Proposed Design Does Not Meet Code?: 

What if My Proposed Design Does Not Meet Code? Check calculations and design Appropriate building types used? Actual lighting equipment wattages used? …and design Reasonable illuminance levels provided? Efficient light sources used? Use alternate 90.1-2004 Standard Use total Building Performance Method

Exterior Lighting Control Requirements (505.2.4): 

Exterior Lighting Control Requirements (505.2.4) Lighting designated for dusk to dawn operation Control by astronomical time switch or photocell Lighting not designated for dusk to dawn operation Control by astronomical time switch Exceptions: Lighting for covered vehicle parking entrances or exits from buildings or parking structures if required by safety, security or eye adaptation

Exterior Efficiency Requirement (505.6.1): 

Exterior Efficiency Requirement (505.6.1) Building grounds lighting luminaires over 100 watts must have source efficacy of at least 60 lumens per watt Exceptions: Controlled by motion sensor Any of the exterior lighting power allowance exceptions As approved for a historical, safety, signage, or emergency consideration

Exterior Lighting Power Limits (505.6.2): 

Exterior Lighting Power Limits (505.6.2) Connected Exterior Lighting Power must not exceed Exterior Lighting Power Allowance Calculate exterior Lighting Power Allowance Lighting power densities by exterior function Additional 5% added to total allowance Calculate proposed connected lighting power Wattage calculation “rules” Exempted lighting Compare values: proposed wattage must be less than or equal to allowed wattage Intent of 5% adder: Allow flexibility in design for critical or unusual applications!

Exterior Lighting Power Limits (505.6.2): 

Exterior Lighting Power Limits (505.6.2) What areas are covered under exterior lighting allowances? Tradable surfaces Common exterior lighted needs that can be traded for other needs. For example, wattage allowed for parking lot lighting can be “traded” and used for canopy lighting. Non-tradable surfaces Less common exterior lighted needs that cannot be traded for other needs. These applications have more specific security or task illuminance needs.

Tradable Surfaces: 

Tradable Surfaces Uncovered parking lots and areas Walkways (under and over 10 feet wide) Stairways Main building entrances Other doors Canopies and overhangs – free standing and attached Open sales areas Street frontage sales areas

Non-tradable Surfaces: 

Non-tradable Surfaces Building facades Automated teller machines and night depositories Entrances and gatehouse inspection stations at guarded facilities Loading areas for law enforcement, fire, ambulance and other emergency vehicles Drive-up windows at fast food restaurants Parking near 24-hour retail entrances

Exterior Lighting Power Example: 

Exterior Lighting Power Example Parking: 10,000 ft2 Canopy: 100 ft2 ATM – One location Canopy Bank ATM Walkway 5 ft wide Parking Lot Walkway: 200 ft long How many tradable watts are allowed for this project? How many non-tradable watts?

Example Calculation: 

Example Calculation Parking : 10,000 ft2 at 0.15 w/ft2 = 1,500 w Canopy: 100 ft2 at 1.25 w/ft2 = 125 w Walkway: 200 ft at 1.0 w/ft = 200 w ATM (one): = 270 w Total = 2,095 w Total watts allowed: 1.05 x 2,095 = 2,200

Exemptions from Exterior Calculation: 

Exemptions from Exterior Calculation The following lighting does not need to be included in the proposed lighting calculation: Specialized signal, directional, and marker lighting associated with transportation Advertising signage or directional signage Lighting integral to equipment or instrumentation and installed by its manufacturer Lighting for theatrical purposes, including performance, stage, film production, and video production Lighting for athletic playing areas Temporary lighting Lighting for industrial production, material handling, transportation sites, and associated storage areas Theme elements in theme/amusement parks Lighting used to highlight features of public monuments and registered historic landmark structures or buildings

What if My Proposed Exterior Lighting Does Not Meet Code?: 

What if My Proposed Exterior Lighting Does Not Meet Code? Check calculations and design Appropriate surface allowances used? Actual lighting equipment wattages used? …and design Reasonable illuminance levels provided? Efficient light sources used? Use total Building Performance Method Note: Alternate 90.1-2004 Standard has same requirements

Electrical Energy Consumption Mandatory Requirement: 

Electrical Energy Consumption Mandatory Requirement Separate Metering Required for Each Dwelling Unit Intent: Occupant understanding of actual energy use can promote effective energy use!

www.energycodes.govtechsupport@becp.pnl.gov: 

www.energycodes.gov techsupport@becp.pnl.gov

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Setting the Standard Newsletter Register on-line to receive the latest up-to-date information on energy code related issues Newsletter: http://www.energycodes.gov/news/

Questions/Comments: 

Questions/Comments Help Desk – on-line electronic form http://www.energycodes.gov/support/helpdesk.php Email Techsupport@becp.pnl.gov U.S. Department of Energy’s Building Energy Codes Program