Glow Wire Test Procedure: An In-depth Analysis of Flame Retardancy Testing Using LISUN ZRS-3H Glow-wire Test Apparatus

Abstract
Flame retardancy testing is crucial for ensuring the safety of electrical and electronic products. The Glow Wire Test Procedure is a widely recognized method used to evaluate the fire resistance of insulating materials. This paper provides an in-depth analysis of the Glow Wire Test Procedure, with a specific focus on the LISUN ZRS-3H Glow-wire Test Apparatus. The study includes a detailed examination of test principles, methodologies, influencing factors, and experimental data.

1. Introduction
With the increasing reliance on electronic devices, the safety of electrical components has become a major concern. Many fire hazards originate from insulation failures or material overheating. Regulatory standards such as IEC 60695-2-10 to 60695-2-13 define the Glow Wire Test Procedure, ensuring that materials used in electrical products meet flame retardancy requirements.

This paper will focus on the LISUN ZRS-3H Glow-wire Test Apparatus, a leading product in the field, detailing its features, testing procedures, and experimental results.

2. Overview of Glow Wire Test Procedure

2.1 Principles of the Glow Wire Test

The Glow Wire Test Procedure simulates the thermal stress that materials may experience when subjected to high temperatures due to electrical overloads. The test involves heating a specified nickel-chromium wire to a predetermined temperature and applying it to the test sample for a set duration. The key objective is to determine whether the material ignites or exhibits self-extinguishing properties.

2.2 Testing Standards

The Glow Wire Test Procedure adheres to international standards such as:

• IEC 60695-2-10: General test procedures for glow-wire testing
• IEC 60695-2-11: Flammability test for end products
• IEC 60695-2-12: Testing for materials
• IEC 60695-2-13: Testing for finished components

2.3 Test Conditions and Parameters

The Glow Wire Test Procedure requires careful control of parameters, including:

Parameter	Specification
Glow wire material	Nickel-Chromium Alloy
Temperature range	550°C – 960°C
Test duration	30s ±1s
Applied force	1.0N ± 0.2N
Sample dimensions	Minimum 60mm x 60mm

3. LISUN ZRS-3H Glow-wire Test Apparatus

3.1 Product Overview

The LISUN ZRS-3H Glow-wire Test Apparatus is designed to conduct precise flame retardancy tests in compliance with IEC 60695-2 standards. This equipment features advanced temperature control, automated sample positioning, and real-time data acquisition.

For more details, visit: LISUN ZRS-3H Glow-wire Test Apparatus.

3.2 Features of LISUN ZRS-3H Glow-wire Test Apparatus

• High-precision temperature control: Ensures stable heating conditions
• Automated sample positioning: Reduces human error
• Digital recording system: Logs test results for analysis
• Safety mechanisms: Includes protective shields and emergency stop functions

3.3 Testing Procedure Using LISUN ZRS-3H

• Preparation of Test Sample: The material is cut into a 60mm x 60mm sample.
• Preheating of Glow Wire: The nickel-chromium wire is heated to the required temperature.
• Application of Heated Wire: The glow wire is pressed against the sample with a force of 1.0N ± 0.2N.
• Observation of Material Behavior:
– If the material ignites, the flame time is recorded.
– If the material does not ignite or self-extinguishes within 30 seconds, it is considered flame-resistant.
• Assessment of Test Results: Based on IEC 60695-2 standards, the material is classified as pass or fail.

4. Experimental Analysis

4.1 Experimental Setup

A series of tests were conducted using the LISUN ZRS-3H Glow-wire Test Apparatus to evaluate the flame retardancy of different insulating materials.

Sample ID	Material Type	Test Temperature (°C)	Ignition Time (s)	Self-Extinguishing Time (s)	Result
A1	ABS Plastic	750	3.2	5.1	Pass
A2	PVC Insulation	850	1.5	2.8	Pass
A3	Polycarbonate	960	0.8	1.2	Pass
A4	Nylon 6	750	5.6	8.3	Fail
A5	FR-4 (Epoxy Resin)	850	2.1	3.5	Pass

4.2 Discussion of Results

• ABS plastic, PVC, and polycarbonate demonstrated excellent self-extinguishing properties, passing the test at higher temperatures.
• Nylon 6, despite its high mechanical strength, exhibited prolonged ignition time, leading to a test failure.
• FR-4, commonly used in circuit boards, showed good flame resistance, making it suitable for electronic applications.

5. Conclusion
The Glow Wire Test Procedure is an essential flame retardancy assessment for electrical insulation materials. The LISUN ZRS-3H Glow-wire Test Apparatus provides precise and reliable test results, ensuring compliance with international safety standards. The experimental analysis highlights the importance of material selection in preventing fire hazards.

For detailed product specifications and inquiries, visit: LISUN ZRS-3H Glow-wire Test Apparatus.

6. References
• IEC 60695-2-10: Fire hazard testing – Part 2-10: Glow-wire apparatus
• IEC 60695-2-11: Fire hazard testing – Part 2-11: Glow-wire flammability test
LISUN Official Website: www.lisungroup.com
This study demonstrates the importance of the Glow Wire Test Procedure in ensuring the safety and compliance of electrical materials.

Tags：ZRS-3H