Glow Wire Tester TF346
Glow Wire Tester, to determine the resistance to fire insulating parts. Widely used in applianceindustries totest thefiresafety of the end products or raw materials.
Glow Wire Tester, to determine the fire hazard of electrical parts and components subjected to malfunctions such as overload, short circuit, poor connection, or others that may ignite and spread the flame to the rest of the product.
The Glow-Wire Tester from TESTEX, adopts the Indirect Method(Known as the IEC Method, compared to DirectMethod, defined in UL94Method), to stimulate an overloaded resistor or other ignition source and applies heat to the specimen for a short period of time, and simulates as closely as possible actual effects occurring in practice.
A temperature controller is fitted with the thermocouple supplied, accurately measuring the glow wire temperature. The electrical circuit of the control unit is fully protected by fuses and a miniature circuit breaker. TESTEX Glow-Wire Test equipment is a fully automatic instrument contained in its own cabinet to maximize the safety of the operator, and large viewing window and black colored walls ensure convenient observation.
- Glow Wire Ø 4mm ± 0.04mm Ni/Cr (80/20), standard
- Temperature Range 500 ~ 1 000 °C± 2 °C adjustable
- Sample pressure 1N ± 0.2 N
- Test speed 18 ± 3 mm/s
- Test mode automatic control, independent convulsions
- Chamber ≥0.5m
- Control single chip microcomputer + touch screen control
|220/110 V||50/60 Hz|
|1100×700×1300 mm (L×W×H)|
|IEC 60695-2-10||ASTM D6194||UL 746A||GB/T 5169.10~13|
IEC 60695-2-10: glow wire test apparatus and common test procedure (glow wire test method)
Glow Wire Tester Definition
The glow wire tester is designed and manufactured according to the requirements of the “glow wire test method” in IEC60695-2-10, GB/T5169.10, and ASTM D6194 standards to simulate the thermal stress caused by the heat source or ignition source such as a heating element or overload resistance in a short period of time.
The glow wire test for plastics is to determine the resistance to fire insulating parts. And the glow wire test simulates the situation of what the plastics material will happen when contact with an over-heated part.
The glow wire tester is suitable for the ignition test of electrical and electronic products such as lighting equipment, electric appliances, household appliances, machine tools, electric motors, electric tools, electronic instruments, information technology equipment, electrical connectors, etc., as well as suitable for insulation materials, engineering plastics or other solid combustible material industries.
Working Principle of Glow Wire Tester
After heating the nickel chromium wire (U-shaped glow wire head) with a high current to the specified test temperature, blanch the sample at a specified pressure for 30s. The ignition risk of electrical and electronic equipment is determined according to whether the test material and bedding burn or not and whether it burned. Record the burning time, ignition time, flame extinguishing time and flammability index after the completion of the test.
Glow Wire Test Procedure
The glow wire temperature should be set up first. Heating the glow wire to reach the required temperature.
Move the glow wire to contact with the specimen.
Record the result accord to the glow wire test standard.
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Q: What is glow wire?
A: The glow wire is one of the parts of the Glow Wire Tester. During the test, the glow wire is used to be preheated to a required temperature.
Q: Do you have some document about the standards?
A: We can offer IEC 60695-2-10 PDF and glow wire test UL746A PDF. Please contact us by email.