IEC 60400:2017

Overview - IEC 60400:2017 (Lampholders and Starterholders)

IEC 60400:2017 is the eighth edition of the International Electrotechnical Commission standard that specifies technical and dimensional requirements and test methods for lampholders used with tubular fluorescent lamps and for starterholders. It covers independent and built‑in lampholders, including single‑capped types integrated in an outer shell (e.g. G23/G24 style), and starterholders intended for AC circuits with working voltages up to 1 000 V r.m.s. This edition (2017) replaces earlier editions and aligns the document with ISO/IEC drafting rules.

Key topics and technical requirements

The standard defines requirements and tests across the full lifecycle of lampholders and starterholders, including:

• Scope and classifications - types covered (independent, building‑in, single‑capped) and lamp/ starter cap compatibility (see Annex A).
• Dimensional requirements - standard sizes and gauges to ensure correct fit and interchangeability.
• Electrical rating and safety - rated voltages/currents and measures for protection against electric shock.
• Marking and documentation - mandatory markings, ratings and identification.
• Construction and terminals - mechanical design, terminal integrity and connection methods.
• Insulation resistance & electric strength - test procedures and minimum insulation performance.
• Resistance to dust, moisture and IP considerations - environmental resistance testing for durability.
• Mechanical strength & endurance - impact, flexing, torque and life‑cycle endurance tests.
• Creepage, clearances, heat, fire and tracking resistance - requirements to prevent arcing, overheating and tracking.
• Season cracking / corrosion tests - specific procedures (Annex B) to assess long‑term degradation.
• Test apparatus and gauges - detailed figures and test caps for measurement and conformity checks (many figures and tables provided).

Practical applications and who uses this standard

IEC 60400:2017 is essential for:

• Lampholder and starter manufacturers - to design, test and certify products for global markets.
• Test laboratories and certification bodies - to perform standardized conformity testing and type approvals.
• Lighting OEMs and fixture designers - to ensure compatibility, safety and regulatory compliance of luminaires.
• Regulatory authorities and specifiers - referencing an internationally accepted standard for safety and installation rules.
• Installers and facility managers - understanding product markings and suitability for application environments.

Using IEC 60400 helps ensure product safety, interchangeability, reliable lamp fit, and compliance with national regulations and certification schemes.

Related standards and references

• IEC 60155 (starters) - referenced for starter compatibility and requirements.
• Other IEC standards for electrical safety, IP/ingress protection and material testing as cited in the normative references.

Keywords: IEC 60400:2017, lampholders, starterholders, tubular fluorescent lamps, lampholder testing, IEC standard, electrical safety, dimensional requirements.