Analyze Doing Glow Wire Test with Glow Wire Tester

What is a Glow Wire Test?
The glow wire test is to test the stability of electronic and electrical products when they are working. The glow wire itself is actually a resistance wire ring with a fixed specification. During glow wire test, it must be heated to a specified temperature with electricity, so that the top of the glow wire contacts the sample for a standard time, and then observe and measure its state. The test range depends on the specific test procedure.

The glow wire tester heats the electric heating wire of the specified material (¢4Ni80/Cr20) and shape to the test temperature (550°C~960°C) for 1min with a large current, then burns the test object vertically with the specified pressure (1.0N) for 30s
Determine the fire hazard of finished electrical and electronic equipment depending on whether the test object and bedding are ignited or lasted for a long time; determine the ignitability, ignition temperature (GWIT), flammability and flammability of solid insulating materials and other solid combustible materials Index (GWFI).

Necessity of Glow Wire Test for Lamps
Security has long been a concern for the home appliance industry. Various fire protection requirements are in place to evaluate and measure the flammability levels of materials used in appliances, as electrical wiring systems can experience electrical overloads or short circuits that can cause plastic materials to ignite due to mishandling. Glow Wire Testing is one of the relevant fire protection requirements adopted by the household appliance industry today

Standards for Glow Wire Test of Luminaires
GB/T5169.11-2017, IEC 60695-2-112014 Test method for glow-wire flammability of finished products
GB/T 5169.12-2013, IEC 60695-2-12:2010+A1.2014 Test method for glow wire flammability index (GWFI) of materials.

ZRS-3H Glow-wire Test Apparatus

Glow wire test requirements for lamps
According to the standard requirements, each part of the lamp structure has different requirements for the glow wire test temperature, as follows:
1. To ensure the lowest level of fire hazard caused by parts being ignited, the glow wire test temperature is 550 degrees;
2. For equipment in normal use, the glow wire test temperature is 650 degrees
3. For normal use of equipment under harsh conditions, the fixed accessories for installation, the glow wire test temperature is 750 degrees;
4. For unattended equipment with continuous load, the glow wire test temperature is 850 degrees;
5. For unattended use of equipment under continuous load under severe conditions, intended for equipment near building power points, the glow wire test temperature is 950 degrees.

Qualified standard for glow wire test of lamps and lanterns
1. Without flame and fiery heat:
2. After removing the top of the glow wire, the flame goes out within 30 seconds, and the silk paper corpine board is not ignited

Lisun Instruments specializes in the research and development of various building materials, electronic and electrical products, and plastic material flame-retardant and fire-resistant test equipment. It can provide material fire resistance tests, building materials combustion classification tests, and flame-retardant tests. The main products are: Glow Wire Tester | Needle Flame Tester | Horizontal and Vertical Burning Tester | Tracking Tester | Single Wire and Cable Burning Tester and so on. This product has been successfully used in various third-party laboratories and units, such as Guangzhou SGS General Standards Laboratory, Shanghai Tianxiang ITS Laboratory, Kunshan Entry-Exit Technical Inspection Center, Guangdong Quality Inspection Institute, Shenzhen Metrology Institute, etc.
Flame retardant and fireproof test equipment for materials of electronic and electrical products

Glow Wire Tester
The glow wire tester is suitable for electrical and electronic products and components such as lighting equipment, low-voltage electrical appliances, household appliances, machine tool appliances, motors, electric tools, electronic instruments, electrical instruments, information technology equipment, electrical business equipment, electrical connectors and accessories, etc. The research, production and quality inspection departments of components are also suitable for the industries of insulating materials, engineering plastics or other solid combustible materials.

Glow wire tester is EC60695-2-10~IEC60695-2-13 (GB/T5169 10-2006~GB/T5169 13-2006) “glow wire/hot wire basic test method, glow wire test device and general test method, etc. “And UL746A, IEC829, DIN695, VDE0471 and other standards stipulate the use of non-flame ignition simulation test items; at the same time meet the test requirements of GB 4943.1-2011, IEC60950-1:2005 Clause 4.7 Chapter 3.