Glow wire test for IPC connector

In the world of electrical components, IPC connectors (Insulation Piercing Connectors) play a vital role in establishing reliable, secure connections across a wide range of applications—from household appliances to industrial machinery. But with great responbility comes the need for rigorous safety testing, especially when it comes to fire hazards. One of the most critical tests for IPC connectors is the glow wire test, a standardized assessment designed to evaluate how these components behave when exposed to extreme heat.

What is the Glow Wire Test?

The Glow Wire Test is designed to simulate the thermal stress that electrical components may experience during operation, especially under fault conditions such as overload or short circuits.

In this test:

• A heated wire (glow wire) is brought into contact with the material
• The temperature typically ranges from 650°C to 960°C 
• The material’s reaction to heat, ignition, and flame spread is observed

The goal is to determine whether the material:

• Ignites easily
• Sustains combustion
• Self-extinguishes after ignition

Why is the Glow Wire Test Important for IPC Connectors?

IPC connectors are commonly used in overhead and underground power distribution systems. They are often installed in environments where fire hazards must be minimized.

Performing a glow wire test ensures that the IPC connector:

1. Prevents Fire Propagation

High-quality IPC connectors are made from flame-retardant materials that do not support continuous burning.

2. Enhances Network Safety

In case of electrical faults, connectors that pass the test reduce the risk of fire spreading across the network.

3. Meets International Standards

Compliance with IEC 60695-2-11 demonstrates that the product meets globally recognized fire safety requirements.

Key Performance Indicators

For IPC connectors, the following criteria are critical:

• GWFI (Glow Wire Flammability Index)

Indicates the highest temperature at which the material does not ignite or self-extinguishes quickly.

• GWIT (Glow Wire Ignition Temperature)

The temperature at which the material ignites under test conditions.

High-performance IPC connectors typically meet:

• 850°C or 960°C requirements

Materials Used in Fire-Resistant IPC Connectors

To pass the Glow Wire Test, IPC connectors are usually made from:

• High-grade thermoplastics
• UV-resistant polymers
• Flame-retardant insulating materials

These materials ensure durability, electrical insulation, and resistance to environmental stress.

Jera Line ZOP-74F: Compliant with IEC 60695-2-11 for Superior Fire Safety Performance

The ZOP-74F is a high-performance component designed for overhead line applications. Built with durable, high-quality polymer materials, it offers excellent insulation and environmental resistance. Its compliance with IEC 60695-2-11 material test standard, capability to perform safely even under extreme thermal conditions.

Key Advantages of ZOP-74F

• Fast installation without stripping insulated cable jacket
• Pure copper contact, suitable AL and CU cables
• Flame retardant material according to IEC 60695-2-11, reduce fire risk.
• Compliance with NFC 33-020, EN 50483 international standard
• Meets the requirements of relevant fire safety codes and standards.

In addition, Jera Line also produces a wide range of IPC connector models to meet different application needs and customer requirements.

Why choose Jera Line as your LV Fire-Proof IPC supplier?

1. We are Direct factory，located in Yuyao, Ningbo China, eliminates middleman, provide the competitive price, ensure the lead time.
2. Expert Engineering Team : Jera Line provides clients with professional, customized advice and all-round support across every stage of their project.
3. In house laboratory with testing equipment: Jera Line has Glow-wire Flammability test equipment, ensure the fire proof materials quality.
4. Strong OEM & ODM Customization: Jera Line offers flexible and professional OEM & ODM services to meet diverse customer requirements across global markets. Understanding that different projects and regions have unique technical and branding needs, Jera Line provides tailored solutions beyond standard product offerings.
5. Global trade experience Jera line has established business relationship with more than 30 countries,and received good feedback from customers on quality.With years of export experience, we understand international standards and customer requirements very well.

Conclusion:

Jera Line’s glow‑wire–tested IPC connectors provide a reliable fire‑proof solution for low‑voltage distribution networks.

With certified fire‑safety performance, durable construction, factory‑direct pricing, and full customization options, our LV IPC range is engineered for projects where fire resistance and long‑term reliability are critical. Global technical support and consistent production quality make our connectors a dependable choice for utilities and contractors worldwide.