Interior Lighting Fixtures (Luminaires)
Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
Showing changes from Rev 4
to Rev 5
in Interior Lighting Fixtures (Luminaires).
---
title: Interior Lighting Fixtures (Luminaires)
…82 unchanged lines
- "UL 924 documentation for emergency luminaires"
- "Sample fixture(s) for review"
−default: "Product data for each luminaire type"
+default:
+ - "Product data for each luminaire type"
+ - "LM-79 photometric test report (complete luminaire)"
+ - "LM-80 data with TM-21 lumen-maintenance projection"
+ - "Driver product data (voltage, dimming, power quality)"
+ - "UL 924 documentation for emergency luminaires"
```
…15 unchanged lines
- "Record (as-built) luminaire schedule"
- "Emergency luminaire functional test documentation"
−default: [Operation and maintenance data (each luminaire and driver type), Warranty documentation (luminaires, drivers, emergency batteries), Record (as-built) luminaire schedule, Emergency luminaire functional test documentation]
+default:
+ - "Operation and maintenance data (each luminaire and driver type)"
+ - "Warranty documentation (luminaires, drivers, emergency batteries)"
+ - "Record (as-built) luminaire schedule"
+ - "Emergency luminaire functional test documentation"
```
…18 unchanged lines
## Color Consistency {toc}
+### The initial color consistency tolerance shall be as indicated in the datasheet.
+
```datasheet
label: Color Consistency Tolerance (Initial)
…19 unchanged lines
## Qualified Products Screening {toc}
+### The qualified-products listing required of each luminaire shall be as indicated in the datasheet.
+
```datasheet
label: Qualified Products Listing Required
…4 unchanged lines
- "DLC Premium listed"
- "ENERGY STAR listed"
−default: "DLC Standard listed"
```
+### The screening level follows from whether the project pursues utility incentives and from which program that utility references, so the field carries no default. {note}
+
### Specifying a DLC- or ENERGY STAR-listed luminaire screens products against an independently verified set of efficacy, color, and warranty requirements and is frequently a prerequisite for utility rebates. {note}
…10 unchanged lines
## Ambient Operating Temperature {toc}
+### The maximum ambient operating temperature at which the luminaire's rated performance applies shall be as indicated in the datasheet.
+
```datasheet
label: Maximum Ambient Operating Temperature
−type: select
+type: range
unit: °C
options:
− - "25°C (conditioned interior space)"
− - "40°C (unconditioned / warm interior)"
− - "55°C (high-temperature: attics, mechanical, kitchens)"
−default: "25°C (conditioned interior space)"
+ min: 25
+ max: 55
+ setpoints: [25, 40, 55]
+default: 25
```
+### The three ratings correspond to conditioned interior space at 25°C, unconditioned or warm interior space at 40°C, and high-temperature locations such as attics, mechanical rooms, and kitchens at 55°C. {note}
+
### Luminaire lumen and life ratings shall be valid at the specified ambient temperature.
…4 unchanged lines
## Location Moisture Rating {toc}
+### The NEC location classification for which each luminaire shall be listed shall be as indicated in the datasheet.
+
```datasheet
label: Location Classification
…6 unchanged lines
```
+### Where a numeric ingress rating is required in addition to the location listing, the minimum rating shall be as indicated in the datasheet.
+
```datasheet
label: Minimum Ingress Protection Rating
…5 unchanged lines
- "IP65 (dust-tight, water jet)"
- "IP66 (dust-tight, powerful water jet)"
−default: "Not specified (dry location)"
```
+### A numeric ingress rating is meaningful only where the location classification is damp or wet; a dry-location luminaire carries the "Not specified" value, and the field is left unanswered where the classification has not yet been made. {note}
+
### Luminaires installed in damp or wet locations shall be listed for that location and shall be constructed so that water cannot enter or accumulate in wiring compartments, lampholders, or other electrical parts, in accordance with NEC 410.10.
…4 unchanged lines
## Light Source Type {toc}
+### The light source construction shall be as indicated in the datasheet.
+
```datasheet
label: Light Source
…2 unchanged lines
- "LED (integral, non-replaceable array)"
- "LED (replaceable module / light engine)"
−default: "LED (integral, non-replaceable array)"
```
…6 unchanged lines
## Delivered Luminous Flux {toc}
+### The required delivered lumens per fixture shall be as indicated in the datasheet, confirmed by the point-by-point lighting calculations.
+
```datasheet
label: Delivered Luminaire Lumens (per fixture)
type: range
unit: lm
−drawing_ref: true
+drawing_ref: "luminaire schedule"
options:
min: 500
max: 20000
− setpoints: [800, 1500, 2500, 4000, 6000, 8000, 12000]
−default: 4000
+ setpoints: [500, 800, 1500, 2500, 4000, 6000, 8000, 12000, 20000]
+default: deferred
```
−### The required delivered lumens per fixture shall be [[drawing: as indicated on the luminaire schedule and confirmed by the point-by-point lighting calculations]].
−
### This value is the total luminaire output measured per IES LM-79, not the bare-source lumens. {note}
…2 unchanged lines
## Luminaire Efficacy {toc}
+### Luminaire efficacy shall be not less than the value indicated in the datasheet, measured per IES LM-79 on the complete luminaire.
+
```datasheet
label: Minimum Luminaire Efficacy
…3 unchanged lines
min: 90
max: 160
− setpoints: [90, 110, 120, 130, 140]
+ setpoints: [90, 110, 120, 130, 140, 160]
default: 120
```
…17 unchanged lines
## Glare Control {toc}
+### The glare control class shall be as indicated in the datasheet.
+
```datasheet
−label: Glare Control Class (Recessed/Office Luminaires)
+label: Glare Control Class
type: select
options:
- "Standard diffuse / prismatic lens"
− - "Low-glare optic (UGR target per space)"
+ - "Low-glare optic to a stated UGR target"
- "Indirect / direct-indirect distribution"
−default: "Standard diffuse / prismatic lens"
```
+### Glare control is a per-space design decision — the same product is right for a warehouse and wrong for an open office — so the field carries no default. {note}
+
### For spaces with computer screens, for healthcare, and for extended-occupancy office work, a low-glare optic or an indirect distribution should be specified to control discomfort glare, which a bare prismatic lens does not adequately address.
…4 unchanged lines
## Correlated Color Temperature {toc}
+### The correlated color temperature shall be as indicated in the datasheet.
+
```datasheet
label: Correlated Color Temperature (CCT)
−type: select
+type: range
unit: K
options:
− - "2700K (warm / residential, hospitality)"
− - "3000K (warm white / hospitality, retail)"
− - "3500K (neutral / general commercial)"
− - "4000K (neutral-cool / offices, schools, healthcare)"
− - "5000K (cool / industrial, task-critical)"
−default: "4000K (neutral-cool / offices, schools, healthcare)"
+ min: 2700
+ max: 5000
+ setpoints: [2700, 3000, 3500, 4000, 5000]
```
### Correlated color temperature describes the warmth or coolness of the emitted white light and shall fall within the chromaticity tolerances of ANSI C78.377 for the nominal CCT specified.
−### The default of 4000K is the predominant choice for offices, schools, and healthcare because it reads as a clean neutral white; warmer temperatures suit hospitality and retail, and cooler temperatures suit industrial and high-acuity task spaces. {note}
+### CCT is a per-space appearance decision with no value that is correct across the building types this standard covers, so the field carries no default: 4000K is predominant for offices, schools, and healthcare because it reads as a clean neutral white, 3500K reads as a neutral suited to general commercial space, 2700K and 3000K are the warm temperatures that suit residential, hospitality, and retail, and 5000K is the cool temperature that suits industrial and high-acuity task spaces. {note}
### A single CCT should be used throughout a contiguous space; mixing CCTs in one room produces an obvious and unwelcome inconsistency.
## Color Rendering Index {toc}
+### The minimum color rendering index shall be as indicated in the datasheet.
+
```datasheet
label: Minimum Color Rendering Index (CRI, Ra)
…13 unchanged lines
## Deep Red Rendering {toc}
+### The minimum R9 value shall be as indicated in the datasheet.
+
```datasheet
label: Minimum R9 (Saturated Red Rendering)
…26 unchanged lines
## Rated Lumen Maintenance Life {toc}
+### The rated lumen maintenance life shall be as indicated in the datasheet, substantiated by LM-80 data extrapolated per TM-21.
+
```datasheet
label: Rated Lumen Maintenance Life
…17 unchanged lines
## System Voltage {toc}
+### The luminaire operating voltage shall be as indicated in the datasheet and shall match the branch-circuit voltage serving the fixture.
+
```datasheet
label: Luminaire Operating Voltage
…3 unchanged lines
- "120V"
- "277V"
− - "120-277V universal-voltage driver"
- "347V"
+ - "120-277V universal-voltage driver"
default: "120-277V universal-voltage driver"
```
−### A universal-voltage (120–277V) driver is the practical default for commercial interior work because it accepts the common branch-circuit voltages without re-stocking voltage-specific fixtures, simplifying procurement and field changes. {note}
+### A universal-voltage (120–277V) driver is the practical default for commercial interior work because it accepts both common US branch-circuit voltages without re-stocking voltage-specific fixtures, simplifying procurement and field changes. {note}
+### The 347V option applies to systems served at 347/600V, which are encountered in some Canadian and large-industrial installations; a 347V driver is a distinct product from the 120–277V universal driver. {note}
+
### A single-voltage driver may be specified where it offers a cost or performance advantage and the branch-circuit voltage is fixed and known.
−### The 347V option applies to systems served at 347/600V, which are encountered in some Canadian and large-industrial installations. {note}
−
## LED Driver Performance {toc}
…6 unchanged lines
## Power Factor {toc}
+### Driver power factor shall be not less than the value indicated in the datasheet.
+
```datasheet
label: Minimum Driver Power Factor
…13 unchanged lines
## Total Harmonic Distortion {toc}
+### Driver input current THD shall not exceed the value indicated in the datasheet, measured per ANSI C82.77.
+
```datasheet
label: Maximum Driver Total Harmonic Distortion (THD)
type: range
−unit: percent
+unit: '%'
options:
min: 10
…3 unchanged lines
```
−### Driver input current THD shall not exceed the specified value, measured per ANSI C82.77.
−
### LED drivers are nonlinear loads and inject harmonic current onto the branch circuit; excessive harmonics overload neutrals and transformers and distort the voltage waveform. {note}
…8 unchanged lines
## Dimming Capability {toc}
+### Whether the luminaire is dimmable shall be as indicated in the datasheet.
+
```datasheet
label: Dimming Capability
type: radio
options:
- "Dimmable"
− - "Non-dimming (on/off only)"
+ - "Non-dimming, on/off switching"
default: "Dimmable"
```
…5 unchanged lines
## Dimming Protocol {toc}
+### The dimming protocol at the luminaire shall be as indicated in the datasheet.
+
```datasheet
label: Dimming Protocol
…15 unchanged lines
## Minimum Dimming Level {toc}
+### The driver shall dim smoothly to not more than the minimum level indicated in the datasheet.
+
```datasheet
label: Minimum Dimming Level
−type: select
+type: range
unit: percent of full output
options:
− - "10% (standard)"
− - "5% (offices, conference, hospitality)"
− - "1% (theaters, lecture, premium hospitality)"
− - "0.1% (specialty / theatrical)"
−default: "10% (standard)"
+ min: 0.1
+ max: 10
+ setpoints: [0.1, 1, 5, 10]
+default: 10
```
+### The deep end of the range is application-driven: 5 percent suits offices, conference rooms, and hospitality; 1 percent suits theaters, lecture halls, and premium hospitality; and 0.1 percent is a specialty theatrical selection. {note}
+
### The minimum dimming level is the lowest output the driver can reach smoothly without flicker or dropout. {note}
…6 unchanged lines
## Color Tuning {toc}
+### The color tuning behavior of the luminaire shall be as indicated in the datasheet.
+
```datasheet
label: Color Tuning
…16 unchanged lines
## Luminaire Mounting Type {toc}
+### The mounting type of each luminaire shall be as indicated in the datasheet.
+
```datasheet
label: Luminaire Mounting Type
type: select
+drawing_ref: "luminaire schedule"
options:
- "Recessed troffer (grid ceiling)"
…3 unchanged lines
- "Pendant / suspended"
- "Wall mounted"
−default: "Recessed troffer (grid ceiling)"
+default: deferred
```
−### The mounting type shall be coordinated with the ceiling system and structure shown on the architectural reflected ceiling plan.
+### The mounting type shall be coordinated with the ceiling system and structure shown on the reflected ceiling plan.
### Recessed troffers suit grid ceilings; recessed downlights and linear fixtures may be grid- or drywall-mounted; pendant and surface fixtures suit exposed-structure and open-plenum ceilings. {note}
…11 unchanged lines
## Lens and Diffuser {toc}
+### The lens or diffuser type shall be as indicated in the datasheet.
+
```datasheet
label: Lens / Diffuser Type
…5 unchanged lines
- "Polycarbonate (impact-resistant)"
- "Open / louvered (no lens)"
−default: "Frosted / opal acrylic diffuser"
```
…6 unchanged lines
## Ceiling Recess Thermal Rating {toc}
+### The insulation contact rating of recessed luminaires shall be as indicated in the datasheet.
+
```datasheet
label: Recessed Insulation Contact Rating
…13 unchanged lines
## Seismic and Suspended-Ceiling Support {toc}
+### Whether seismic support of luminaires is required shall be as indicated in the datasheet.
+
```datasheet
label: Seismic Support Required
type: radio
+drawing_ref: "structural drawings"
options:
- "Not required"
- "Required per ASCE 7 / adopted building code"
−default: "Not required"
+default: deferred
```
+### The Seismic Design Category is established by the project's structural design; the lighting scope adopts it rather than setting it. {note}
+
### Where required by the adopted building code, luminaires in suspended ceilings shall be independently supported and seismically restrained per ASCE 7, and shall not rely solely on the ceiling grid for support.
−### Independent support wires and the connection of the luminaire to structure shall be [[drawing: as detailed on the structural and reflected ceiling plan drawings]].
+### Independent support wires and the connection of the luminaire to structure shall be [[drawing: as detailed on the contract documents]].
### This requirement is frequently overlooked and is a common inspection finding in seismic regions. {note}
…9 unchanged lines
## Emergency Power Source {toc}
+### The emergency power source serving the luminaire shall be as indicated in the datasheet.
+
```datasheet
label: Emergency Power Source
type: select
options:
− - "None (normal luminaire only)"
+ - "None — luminaire has no emergency function"
- "Integral battery / emergency LED driver (UL 924)"
- "Central inverter circuit"
- "Generator-backed emergency branch circuit"
−default: "None (normal luminaire only)"
+default: "None — luminaire has no emergency function"
```
−### An integral battery backup driver is the simplest and most common means of making an individual luminaire an emergency fixture and is appropriate where a small number of fixtures must be backed up. {note}
+### An integral battery backup driver is the simplest and most common means of making an individual luminaire an emergency fixture and is appropriate where a small number of fixtures must be backed up.
### A central inverter or a generator-backed emergency branch circuit should be specified where many emergency luminaires are required, because centralized backup is easier to test and maintain than dozens of individual batteries.
…3 unchanged lines
## Emergency Output and Duration {toc}
+### The minimum emergency operating duration shall be as indicated in the datasheet.
+
```datasheet
label: Minimum Emergency Operating Duration
…12 unchanged lines
## Self-Test and Self-Diagnostics {toc}
+### The self-test capability of emergency luminaires shall be as indicated in the datasheet.
+
```datasheet
label: Emergency Self-Test / Self-Diagnostics
…27 unchanged lines
## Illuminance Verification {toc}
+### Whether field illuminance verification is required shall be as indicated in the datasheet.
+
```datasheet
label: Field Illuminance Verification
…45 unchanged lines
# Warranty {toc}
+## The luminaire warranty period shall be as indicated in the datasheet.
+
```datasheet
label: Luminaire Warranty Period
…6 unchanged lines
```
+## Where integral-battery emergency luminaires are provided, the battery warranty period shall be as indicated in the datasheet.
+
```datasheet
label: Emergency Battery Warranty
type: select
options:
− - "Not applicable (no emergency batteries)"
+ - "Not applicable (no integral-battery emergency luminaires)"
- "1 year full, prorated thereafter"
- "5 years from substantial completion"
−default: "Not applicable (no emergency batteries)"
```
…4 unchanged lines
## Emergency battery packs have a shorter service life than the luminaires they back up and shall carry a defined warranty.
−## Where integral-battery emergency luminaires are provided, the battery warranty shall be stated separately because batteries are a wear item that will require replacement within the life of the fixture.
+## The battery warranty is stated separately from the luminaire warranty because batteries are a wear item that will require replacement within the life of the fixture. {note}
# Spare Parts {toc}
+## Spare luminaires and components shall be furnished as indicated in the datasheet.
+
```datasheet
label: Spare Luminaires / Components
…5 unchanged lines
- "Spare complete luminaires (each major type)"
- "Spare emergency battery packs"
−default: "Spare drivers (per type)"
+default:
+ - "Spare drivers (per type)"
```
## The Contractor shall furnish spare components matching the installed types so the Owner can address failures without a long procurement lead time.
## Spare drivers are the highest-value spare because the driver is the most failure-prone component; spare complete luminaires of each major type should be furnished where the product line may be discontinued or where color binning must be matched to the original installation. {note}