Lamp Holder Test Solutions

There are some standards focus on specifying technical requirements and test methods for different categories of lampholders in the lighting field, ensuring their safety, compatibility, and reliability. IEC 60238:2020 (Edison Screw Lampholders) specifically targets Edison screw-type lampholders, defining key criteria such as dimensional specifications, electrical performance, mechanical strength, and heat resistance, along with corresponding test procedures to verify compliance—this ensures the lampholders fit and operate safely with matching Edison screw lamps. IEC 60400:2004 (Lampholders for Tubular Fluorescent Lamps and Starterholders) is dedicated to lampholders paired with tubular fluorescent lamps and their associated starterholders, outlining standards for structural design, electrical insulation, and operational stability to support the safe and efficient functioning of tubular fluorescent lighting systems.

IEC 60838-1:2020 (Miscellaneous Lampholders – Part 1: General Requirements and Tests) serves as a foundational, universal standard for miscellaneous lampholders (i.e., those not covered by specialized standards). It establishes overarching principles for design, core safety requirements (including insulation, temperature resistance, and durability), and unified test protocols, providing a comprehensive framework for the production, inspection, and application of miscellaneous lampholder types. Meanwhile, UL 496:2013 (Standard for Safety – Lampholders) is a safety-focused standard developed by Underwriters Laboratories. It centers on minimizing safety hazards associated with lampholders, specifying rigorous requirements for electrical safety (such as preventing electric shock), fire resistance, and mechanical integrity, with corresponding test methods to ensure lampholders meet high safety standards for use in various electrical systems and environments. Together, these four standards form a multi-dimensional regulatory system covering different lampholder categories, addressing both technical performance and safety to guide global lampholder manufacturing and application.

Standard:

Part 1	IEC 60238:2020	Edison screw lampholders
Part 2	IEC 60400:2004	Lampholders for tubular fluorescent lamps and starterholders
Part 3	IEC 60838-1:2020	Miscellaneous lampholders-Part 1: General requirements and tests
Part 4	UL 496:2013	STANDARD FOR SAFETY – Lampholders

IEC 60238:2020 Edison screw lampholders

LISUN supplies the fully test solutions for the following IEC 60238:2020, please see the below excel table:

IEC 60238:2020 Clause and Subject	LISUN MODEL
5.2&6.4 Temperature Test	GDJS-015B
20 General resistance to heat
10.2 standard test finger with force 10N	SMT-02T10
11.3 torque	CH338
12 Provision for earthing	WB2678A
15 Moisture resistance,insulation resistance and electric strength	JL-X
	GDJS-015B
	WB2681A
16.6 pendulum hammer test	IK07-10
18 Creepage distances and clearances	CK-1
21.3 glow-wire test	ZRS-3H
21.4 needle-flame test	ZY-3
21.5 proof tracking test	TTC-1
22 Resistance to excessive residual stresses (season cracking) and to rusting	YWX/Q-010
Annex A Season cracking/corrosion test

IEC 60400:2004 Lampholders for tubular fluorescent lamps and starterholders

LISUN supplies the fully test solutions for the following IEC 60400:2004, please see the below excel table:

IEC 60400:2004 Clause and Subject	LISUN MODEL
7.4 protection against ingress of dust or water	SC-015&JL-X
8.1 10N force Test finger(Figure 41)	SMT-02T10
11.1 Resistance to dust	SC-015
11.2 Resistance to moisture	YWX/Q-010
18 Resistance to excessive residual stresses (season cracking) and to rusting
Annex B Season cracking/corrosion test
12 Insulation resistance and electric strength	WB2681A
14.2 pendulum hammer test	IK07-10
14.3&15.1 torque test	CH338
16 Creepage distances and clearances	CK-1
17.1 resistant to heat	GDJS-015B
17.2 ball-pressure test	ZBP-T
17.4 glow-wire test	ZRS-3H
17.5 needle-flame test	ZY-3
17.6 proof tracking test	TTC-1

IEC 60838-1:2020 Miscellaneous lampholders-Part 1: General requirements and tests

LISUN supplies the fully test solutions for the following IEC 60838-1:2020, please see the below excel table:

IEC 60838-1:2020 Clause and Subject	LISUN MODEL
8 Protection against electric shock	SMT-02T10
12.1 Holders shall be moisture-proof	GDJS-015B
12.2.1 Insulation resistance test	WB2681A
13 Mechanical strength	IK07-10
15 Creepage distances and clearances	CK-1
16 Endurance	GW-500
17.6 heat resistance
17.1 Ball Pressure Tester	ZBP-T
17.3 glow-wire test	ZRS-3H
17.4 needle-flame test	ZY-3
17.5 proof-tracking test	TTC-1
18 Resistance to excessive residual stresses (season cracking) and to rusting	YWX/Q-010
Annex C Season cracking/corrosion test

UL 496:2013 STANDARD FOR SAFETY – Lampholders

LISUN supplies the fully test solutions for the following UL 496:2013, please see the below excel table:

UL 496:2013 Clause and Subject	LISUN MODEL
4.5 Accessibility of Live Parts	SMT-PA100A
4.9 Creepage Distances and Clearances	CK-1
5.2.1 Effect of Heat on Gaskets Test	GDJS-015B
5.2.7 Effect of Heat Test on Actuating Members
5.2.10.3 Effect of heat
5.2.14.1-5.2.14.4 Weatherproof Lampholder Tests
5.2.15 Insulation-Piercing Terminal Lampholder Temperature Tests
5.2.17 Mold Stress-Relief Distortion Test
5.2.3.4 torsion test	CH338
5.2.11.2 Torque test
5.2.4.2 Screwshell Go/Not Go Test	LS-WJ62
5.2.12 Insulation Resistance Test	WB2681A
5.2.14.5 Rain test	JL-UL

Tags：CH338 , CK-1 , GDJS-015B , IK07-10 , JL-UL , JL-X , LS-WJ62 , SC-015 , SMT-02T10 , SMT-PA100A , TTC-1 , WB2678A , WB2681A , YWX/Q-010 , ZBP-T , ZRS-3H , ZY-3