Category: Codes + Standards

CIE Publishes CIE 250:2022 On Spectroradiometric Measurements, Measurement Uncertainties, & Instrument Calibration

The Technical Committee TC2-80 of the CIE has prepared a new technical report on the spectroradiometric measurement of optical radiation sources. The document, published as CIE 250:2022, supersedes the almost 40-year-old report CIE 063-1984.

The Technical Committee TC2-80 of the CIE has prepared a new technical report on the spectroradiometric measurement of optical radiation sources. The document, published as CIE 250:2022, supersedes the almost 40-year-old report CIE 063-1984.

It explains the basic measurement principles and provides practical instructions for the measurement of irradiance, radiation density, radiation intensity and radiant flux, including instrument calibration. In addition, the report describes in detail the physical effects relevant to spectroradiometric measurements, and in particular the estimation of measurement uncertainties. The measurement uncertainties occurring in every measurement quantitatively determine the accuracy of the calibration chain for traceable measured values.

The new technical report is for optical radiation sources in the wavelength range 200–2500 nm. The report offers a comprehensive insight into the relevant terminology and the fundamentals of calibration of spectroradiometric measuring instruments. It is a practical guide to the identification, understanding and quantification of the relevant components of measurement uncertainty and can be purchased in the CIE online shop: .

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New Zhaga Books Address In-Field Programming Of Smart Lighting

In February, 2022, Zhaga approved Book 25 “NFC Readers with Bluetooth Interface for In-Field Programming”. This new Zhaga specification defines a Bluetooth Low Energy communication protocol for the communication between the field-maintenance application on a smart device and the Near Field Communication (NFC) reader.

In February, 2022, Zhaga approved Book 25 “NFC Readers with Bluetooth Interface for In-Field Programming”. This new Zhaga specification defines a Bluetooth Low Energy communication protocol for the communication between the field-maintenance application on a smart device and the Near Field Communication (NFC) reader. Together with Book 24, which describes the programming of luminaire components using NFC, these specifications solve the data management problems of smart luminaires with interoperable maintenance tools, enabling configurable luminaires that are easy to service over their entire lifecycle.

An increasing number of lighting applications require reading out parameters and changing settings of LED drivers in the field. Manufacturers of LED luminaires currently use a variety of methods for in-field programming. The new Zhaga NFC Books give installers, system integrators and utility companies the option to select just one programming tool which works with all field-maintenance applications from all vendors implementing Book 25, and all NFC-programmable devices implementing Book 24.

Zhaga Book 25 builds on Book 24 “Programming of Luminaire Components Using NFC”, and adds mobile NFC Readers with a Bluetooth Low Energy interface. It enables maintenance and replaceability with a cross-vendor harmonized method of NFC programming for in-field use.

The specification defines a Bluetooth Low Energy GATT-Service which NFC Reader manufacturers can implement for the communication between the field-maintenance application on a smart device (cell phone, tablet, etc.) and the NFC reader. This allows the field-maintenance application to read and write parameters on NFC enabled LED drivers without the need for a cable-based connection. Field maintenance with Book 25 may also be used for other components requiring programming, such as sensors or connectivity nodes.

Zhaga has also developed the Zhaga-NFC certification program for Book
24 and Book 25 which is available for Regular and Associate Zhaga
members and is provided by Zhaga accredited test centers listed on the
Zhaga website. Only certified NFC readers and NFC-programmable devices can carry the Zhaga-NFC logo. This certification builds trust in the interoperability of components. More information is available here.

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Four New ANSI/IES Standards Released

The Illuminating Engineering Society (IES) recently introduced four new standards documents addressing current challenges that face the lighting industry – navigating near-field photometry, standardizing iterations of lighting controls intent, the importance of UV lighting, and promoting a balanced outdoor environment.

The Illuminating Engineering Society (IES) recently introduced four new standards documents addressing current challenges that face the lighting industry – navigating near-field photometry, standardizing iterations of lighting controls intent, the importance of UV lighting, and promoting a balanced outdoor environment. The four new standards are available in the IES webstore, and include:

  1. Recommended Practice: Lighting Exterior Applications (ANSI/IES RP-43-22)

This document provides pedestrian-oriented illumination recommendations for the reassurance, safety, comfort, amenity, and enjoyment of people in outdoor environments. This RP takes a comprehensive approach and makes recommendations based on lighting zone, glare avoidance, spectrum, and other visually influential conditions. Application of these recommendations will ultimately enhance the visual experience for people while also respecting the environment. Available here.

  1. Lighting Practice: Documenting Control Intent Narratives and Sequences of Operation (ANSI/IES LP-16-22)

 Intended for a variety of users in the lighting community, this document provides guidance on the documentation of Control Intent Narratives and Sequences of Operation. It is not intended to be a design guide but rather a reference manual of best practices on how the design, once formulated, is included in the project documentation and communicated to the construction and commissioning teams. Available here.

  1. Approved Method: Application Distance Radiometry (ANSI/IES LM-91-22)

In near-field conditions, the use of far-field IES-format photometric files results in substantially incorrect irradiance, illuminance, or photon-flux density values being predicted by lighting layout models constructed for near-field conditions. This problem can be overcome by using distance-specific IES file(s), generated by first collecting data at the working distance(s) of interest, obtained from a single luminaire and then converting them to distance-specific IES file(s), following the protocol described in this document. Available here.

  1. Approved Method: Optical and Electrical Measurement of Ultraviolet LEDs (ANSI/IES/IUVA LM-92-22)

This document is a guide developed for the measurement of ultraviolet (UV) light emitting diodes (LEDs) and describes the procedures to be followed and precautions to be observed in performing measurements of total radiant flux (total radiant power), electrical power, and wavelength characteristics of ultraviolet (UV) light emitting diodes (LEDs). Available here.

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IES Releases Update To Roadway & Parking Lighting Standard, RP-8

IES has released the latest version of its ANSI/IES RP-8-21: Roadway and Parking Facility Lighting Standard. This standard covers all aspects of roadway lighting, including streets and roadways, parking lots, intersections, toll plazas, tunnels, and work zones.

IES has released the latest version of its ANSI/IES RP-8-21: Roadway and Parking Facility Lighting Standard. This standard covers all aspects of roadway lighting, including streets and roadways, parking lots, intersections, toll plazas, tunnels, and work zones. Notably, RP-8-21 is a compilation of numerous previously distinct IES American National Standards.

As discussed in the Introduction of RP-8, lighting design criteria need to carefully consider the following goals:

  • Improve motorist visual quality
  • Provide quality light and increased contrast for seeing hazards Illuminate conflict areas
  • Minimize environmental impacts of light at night
  • Employ lighting systems that are easily maintained and minimize energy use

To order RP-8, visit here.

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NEMA Publishes Recommendations For Standby Power Measurements For LED Drivers

The National Electrical Manufacturers Association (NEMA) published a new white paper NEMA LS 20003-2021 Standby Power Measurements for LED Drivers—Recommended Allowances for Feature Sets Other Than Lighting, for LED driver manufacturers and testing laboratories.

The National Electrical Manufacturers Association (NEMA) published a new white paper NEMA LS 20003-2021 Standby Power Measurements for LED Drivers—Recommended Allowances for Feature Sets Other Than Lighting, for LED driver manufacturers and testing laboratories. Developed alongside ANSI C82.16, the two documents should be read in conjunction with each other. NEMA Lighting Controls Technical Committee Chair Stephen Irving says the publication “strikes the right balance between minimizing standby power usage and ensuring that smart-enabled LED driver features remain available to customers. It can be used by manufacturers during the design of new products and by other standards-setting bodies when considering limits for LED driver standby power usage.”

Download the full document for free here .

 

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Recent ANSI Standards Address Sky Glow, UV-LED Performance, Expanded Digital Lighting Control, and Tunable-White SSL

A variety of new and updated ANSI standards address topics as diverse as sky glow, UV-LED Performance, expanded digital lighting control, and tunable-white SSL products. Below are quick summaries of each one, with links to more information.

A variety of new and updated ANSI standards address topics as diverse as sky glow, UV-LED Performance, expanded digital lighting control, and tunable-white SSL products. Below are quick summaries of each one, with links to more information.

Sky Glow, ANSI/IES TM-37-21:

This document provides guidance on the means of reducing human contributions to light in the night sky and information on estimating the relative effectiveness of the different options available. It describes the causes, characteristics, and potential impacts of human-based sky glow, and provides the current state of the science for conducting estimations to facilitate its quantification and control. Virtually all lighting applications with exposure to the exterior environment fall within this purview, including street and area lighting, sports lighting, signage, and advertisement lighting, industrial lighting, light escaping the interior of commercial and residential buildings via windows, and landscape lighting. The beginning steps of a proactive response from the lighting community toward addressing the panoply of concerns are presented in the most well-rounded and practical manner possible. Improved understanding and estimation of the associated sources, quantities, characteristics, and resulting behaviors of light entering the night sky are essential components of a comprehensive remediation strategy. More information here.

UV-LED Performance, ANSI/IES/IUVA LM-92-22:

The Illuminating Engineering Society (IES) and International Ultraviolet Association (IUVA) recently published the first standard on the measurement of UV product emissions in a series of planned American National Standards. ANSI/IES/IUVA LM-92-22 Approved Method: Optical and Electrical Measurement of Ultraviolet LEDs details a method for repeatable laboratory testing and measurement of UV-LED optical and electrical performance characteristics. LM-92 covers measurement of UV LEDs in the wavelength range of 200 nm to 400 nm under continuous-pulse operation. LEDs with wavelengths longer than 360 nm are covered in ANSI/IES LM-85-20. More information at LEDs Magazine here.

Expanded Digital Lighting Control, ANSI C137.4-2021:

Harmonization of international standards related to DALI lighting control continues with the publication of the updated ANSI C137.4-2021 standard in North America. ANSI C137.4-2021 builds on the international standard IEC 62386 (which underpins the DALI communication protocol) and has additional characteristics and features that align very closely with the D4i family of specifications from the DALI Alliance, a global lighting-industry organization.

D4i and ANSI C137.4-2021 specify the digital communication interface between luminaires and devices including sensors and network lighting controllers (NLCs). As well as including power-supply requirements, the standards define data models based on memory banks that enable the exchange of data. Implementation of these standards enables smart, connected luminaires, as well as interoperability between LED drivers and luminaire-mounted control devices. More information at inside.lighting here.

Tunable White SSL, ANSI/IES TM-38-21:

The ability to emit radiant power in hundreds or thousands of spectral combinations—only limited by the precision of the control signal being provided—poses a distinct challenge for measuring product performance. TM-38-21 establishes a common protocol for measuring photometric, colorimetric, and electrical characteristics of tunable-white solid-state lighting products—including lamps, luminaires, and light engines. It defines the minimum number and order in which measurements are to be made, and it provides a framework for data reporting. This TM also describes a method for interpolating between measured data, including for CCT range, Duv range, lumen output range (at full intensity control as color changes), efficacy at maximum output, efficacy range, color rendition, and chromaticity coordinates.

The protocol described herein applies to products for which the spectral power distribution can be adjusted with a single, one-dimensional input having a quantitative, interval format, either continuous or discrete, that is nominally independent of luminous flux control. The method described does not apply to products that intentionally change chromaticity with luminous flux (e.g., dim-to-warm), nor products with multiple color-control input signals (e.g., full-color-tunable) that cannot be set to operate with a single color-control input signal. More information here.

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NEMA Published Recommendations For Replacing HID Lamps With LED Lamps

In February, 2022, NEMA published NEMA LL-10, Replacing HID Lamps with LED Lamps: Light Output Equivalency Claims. This document describes a method for claiming equivalency of LED lamps to the HID lamps they replace.

In February, 2022, NEMA published NEMA LL-10, Replacing HID Lamps with LED Lamps: Light Output Equivalency Claims. This document describes a method for claiming equivalency of LED lamps to the HID lamps they replace. The NEMA standard applies to omnidirectional lamps. (The equivalency for directional lamps is more complicated and requires simulation or mockups to establish). The intention is for manufacturers to use LL-10 when they prepare their equivalency claims.

Replacing high-intensity discharge (HID) lamps with light-emitting diode (LED) equivalents should be an easy and straightforward endeavor. However, currently, there are significant variations in the luminous flux (light output) of LED lamps claiming to be equivalent to a particular HID lamp wattage. When this happens, customer confusion and dissatisfaction can ensue and result in an unlevel playing field for manufacturers. NEMA provides value to the end-user and the manufacturing community with recommendations for when this scenario occurs.

Read the full article here.

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DLC Releases New Logos For Each QPL Impacting Product Marketing Materials

The DesignLights Consortium (DLC) has released four new logos, allowing manufacturers and distributors to indicate which products are listed on each of the four DLC Qualified Product Lists (QPLs).

The DesignLights Consortium (DLC) has released four new logos, allowing manufacturers and distributors to indicate which products are listed on each of the four DLC Qualified Product Lists (QPLs). The four updated logos are designed for use with products approved for the DLC’s Solid-State Lighting (SSL) and Networked Lighting Controls (NLC), Horticultural Lighting, and LUNA qualified products lists (QPL). Effective April 21, 2022, these logos are valid to indicate qualification on the DLC QPLs.

The DLC encourages all manufacturers with listed products to update their marketing materials with the new logos, which can be found on the DLC Marketing Toolkit webpage. For proper use of the logos, refer to the Logo Use Quick Guide and the full Logo and Trademark Use Guidelines.

The DLC does not expect manufacturers to immediately update older materials but encourages updating as soon as is feasible. For the time being, old QPL logos are still valid to identify DLC qualified products, and QPL users should note that they may still see the old logos used to indicate qualification. The DLC recommends that users looking for qualified products always verify the listing on the individual QPLs. If you have questions about the new logos or updating your marketing materials, contact DLC at info@designlights.org.

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NEMA Publishes ANSI Standard For Standby Power Measurement In Lighting

The National Electrical Manufacturers Association (NEMA) published American National Standard for Lighting Systems—Non-Active Mode Power Measurement ANSI C137.63103-2021. 

The National Electrical Manufacturers Association (NEMA) published American National Standard for Lighting Systems—Non-Active Mode Power Measurement ANSI C137.63103-2021.

This newly published standard adopts IEC 63103, ed1.0 (2020-07) as a nationally acknowledged international standard with deviations. It provides manufacturers and testing laboratories with a harmonized way of determining standby power consumption for lighting systems, eliminating duplicative testing and streamlining global commerce.

“This regional adoption of an IEC standard benefits the industry by closely aligning lighting system standby power measurement with our international counterparts,” said Ernesto Mendoza, Senior Manager, Signify North America Corporation, and C137 Workgroup Chair.

ANSI C137.63103-2021 is available on the NEMA website for $50. Read the full NEMA press release here.

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ioXt Certification Expands To Include Network Lighting Controls

The ioXt Alliance, a global standard for Internet of Things (IoT) product security, is expanding its ioXt Certification Program with a new profile for network lighting controls (NLC), allowing manufacturers to certify commercial lighting systems with wirelessly connected parts.

The ioXt Alliance, a global standard for Internet of Things (IoT) product security, is expanding its ioXt Certification Program with a new profile for network lighting controls (NLC), allowing manufacturers to certify commercial lighting systems with wirelessly connected parts. Aligned with the initiatives set forth by the DesignLights Consortium (DLC), which satisfies the NLC5 requirements, the new ioXt NLC Profile brings transparency and visibility to enterprise buyers in the commercial lighting space.

With a concentration on security, upgradability, transparency, and compliance, the ioXt Certification Program evaluates products against the eight ioXt pledge principles requiring that the devices will be tested against clear guidelines for quantifying the optimal level of security. The NLC profile is an efficient and cost-effective standard process for commercial lighting manufacturers to become DLC-compliant.

Once a manufacturer receives the ioXt stamp of approval, this satisfies the DLC’s cybersecurity requirements and the product is eligible for qualification, which is required for many rebates offered by efficiency programs throughout North America.

Read the full article here.

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