IEC 60662:2011

Overview

IEC 60662:2011 is an international standard published by the International Electrotechnical Commission (IEC) that defines performance specifications for high-pressure sodium (HPS) vapour lamps used in general lighting applications. This edition replaces the original 1980 version and focuses exclusively on performance requirements, with safety aspects covered separately under IEC 62035.

The standard sets comprehensive criteria for testing electrical and photometric characteristics, ensuring that HPS lamps meet consistent quality levels suited for diverse lighting environments. It incorporates a new approach for lamp ignition tests, introduces updated measurement procedures, and restructures lamp data sheets for improved clarity and usability by manufacturers and designers.

Key Topics

• Scope and Application
  IEC 60662:2011 applies to high-pressure sodium vapour lamps designed for general lighting, requiring compliance with performance criteria during type testing. It addresses aspects such as starting behavior, warm-up characteristics, lumen maintenance, and lamp life.

• Performance Requirements Only
  This edition separates performance and safety-lamp safety specifications are referenced to IEC 62035, while IEC 60662 concentrates on parameters affecting lamp operation and output.

• Ignition Test Device Introduction
  A standardized test device for ignition has been introduced to verify lamp starting reliability under controlled conditions, improving consistency during testing.

• Lamp Data Sheets
  Data sheets are now split between lamps tested with the ignition device and those without. The sheets are ordered based on wattage, providing technical details essential for manufacturers and designers.

• Measurement Procedures
  Detailed methods for measuring electrical characteristics (like voltage and power consumption), photometric performance (including luminous flux and color properties), and lamp lumen maintenance are outlined, ensuring reliable evaluation of lamp performance.

• Ballast and Ignitor Design Information
  The standard provides vital information to assist in the design and selection of compatible ballasts and ignitors, which are critical components for optimal lamp operation.

• Maximum Lamp Outlines and Dimensions
  Updated maximum physical dimensions and alignment of data facilitate integration into luminaires and standardized fixture design.

Applications

• Street and Area Lighting
  HPS lamps meeting IEC 60662:2011 are widely used for outdoor and roadway illumination, offering high luminous efficacy and long service life.

• Industrial and Commercial Lighting
  Their stable performance and efficiency make these lamps ideal for warehouses, industrial plants, and other large indoor environments.

• Ballast and Luminaire Manufacturing
  This standard guides ballast manufacturers in creating compatible ignition and control gear and supports luminaire designers in accommodating lamp dimensions and electrical specifications.

Related Standards

• IEC 62035 – Safety specifications for discharge lamps (excluding fluorescent lamps), which complements IEC 60662 by addressing safety requirements.

• IEC 60923 – Performance requirements for ballasts used with discharge lamps, essential for ensuring proper lamp-ballast compatibility.

• IEC 61347-2-1 – Specific requirements related to lamp control gear and starting devices, relevant for ignition device design aligned with IEC 60662 testing protocols.

• IEC 60061 (Parts 1 and 3) – Standards covering lamp caps, holders, and interchangeability gauges, facilitating proper mechanical and electrical connections for HPS lamps.

Practical Value

Adhering to IEC 60662:2011 enables manufacturers and vendors to ensure consistent, reliable HPS lamp performance, aiding in product certification and market acceptance. Lighting designers gain access to validated performance data and physical dimensions necessary for efficient lighting system integration. Additionally, ballast and ignitor designers benefit from standardized ignition test methods and electrical characteristic data, supporting the development of components that promote lamp longevity and optimal light output.

By following IEC 60662, stakeholders can achieve improved energy efficiency, reduced maintenance costs, and enhanced lighting quality across applications relying on high-pressure sodium vapour lamps.