Glow Wire Testing: Exploring Glow Wire Test Standard and Practices

Glow wire testing can be used to assess fire protection in electrical equipment. It is intended to simulate what an over-heated component may cause a fire and test the combustibility of plastic materials. The test uses a heated wire to simulate an overheated element and measure the reaction when the plastic material comes into contact. If the material does not ignite when in contact with the heated wire, it indicates that the material meets the fire retardant requirements. In the household appliance industry, this test is widely used to assess the combustibility of various plastic materials and cables used in electrical components to ensure product safety. In addition, the test can also be applied to industries such as automobiles, ships, buildings.

In the household appliance industry, to ensure the correct use, safety from overheating and short circuit of appliances, glow wire testing is a widely adopted electrical safety test. It is used to evaluate the combustibility performance of plastic materials when in contact with an overheated element to ensure that the materials used in the appliance have good fire resistance. In addition, this safety test can also be used to evaluate safety requirements in industries such as automobiles, ships, buildings. Effective application of glow wire testing helps to improve the safety of products in industries such as household appliances, automobiles, ships and buildings, thereby reducing the risk of fire.

glow wire tester

Glow wire testing is an important means for evaluation of combustibility, which covers four different aspects of heat wire testing. GB/T5169.10 Heat Wire Device and General Test Procedure requires the use of standard heat wire equipment and test procedure to test whether the material is combustible. The Final Product Heat Wire Combustibility Test Method (GWEPT) of IEC60695-2-11 is used to test the combustibility of physical products and it can be used to evaluate the combustibility of physical products. The Heat Wire Combustibility Index Test of GWFI of IEC60695-2-12 is used to test the combustibility of the material itself. The Heat Wire Ignition Temperature of GWIT of IEC60695-2-13 is used to test the ignition temperature of the material.

Glow wire testing is an important part of the fire hazard test of IEC60695-2 as specified in GB/T5169.10-13, which covers four chapters, including Heat Wire Device and General Test Procedure, Final Product Heat Wire Combustibility Test Method (GWEPT), Heat Wire Combustibility Index Test of GWFI and Heat Wire Ignition Temperature of GWIT. Glow wire testing can be used to evaluate the combustibility of materials and products, but it is required to follow the test regulations of GB/T5169.10-13 and use glow wire test standard heat wire equipment and testing method for testing. Glow wire testing can provide reliable basis for testing and evaluation of hazardous substances.

According to the IEC 62153-1 specifications, glow wire testing is a test method for assessing the safety of household appliances. This test method must be carried out in accordance with the requirements of IEC 60695-2 series. Glow wire testing includes several tests, including GWT (IEC60695-2-11), GWFI (IEC 60695-2-12) and GWIT (IEC 60695-2-13). GWT test is used to test the combustibility of the final product, while GWFI and GWIT test are used to test the combustibility of the raw material.

Glow wire testing uses a heating element called heat wire to heat the sample to be tested, and the element is pressed into the sample material with 1N of force for 30 seconds. The GWT test will evaluate whether the sample will ignite within 30 seconds after the heating element is removed, and the GWFI and GWIT tests will evaluate the combustible temperature range of the material within 30 seconds after the heating element is removed. All glow wire testing methods have specified specific combustible temperature ranges, ignition times and combustion heights to determine the safety of the product or raw material used.

IEC 60335-1 is the standard of general safety for household appliances management. The specification requires the glow wire testing of the combustibility of the non-metallic connectors used, and specifies the degree of demanding test. In this specification, appliances that are classified as unsupervised, such as refrigerators, cooking devices, dishwashers, washing machines and dryers that use currents greater than 0.2A, require the most stringent assessment, including materials that meet GWF850℃, final products that pass 850℃ heat wire testing, materials that meet GWIT 775°COR, and final products that pass the 750℃ heat wire test. Connectors used in appliances that are classified as current less than 0.2A and unsupervised or supervised require more relaxed testing methods. Therefore, appliance manufacturers need to understand the classification of their products in order to carry out the correct testing according to IEC 60335-1.

LISUN Instruments is well known for developing various types of building material, electronic and electrical products, and flame retardant and fire resistant testing equipment. It provides multiple test plan options, such as fire resistance tests, building material combustibility test, and flame retardant tests. Its main products are glow wire testing instrument, needle flam testing instrument, horizontal and vertical burning test instrument, leakage current and tracking test instrument, and single-wire cable burning test instrument. Glow wire testing can be used to assess fire protection in electrical equipment. It simulates what an overheated component may cause a fire and tests the combustibility of plastic materials.

The test uses a heated wire to simulate an overheated element and measure the reaction of the material when it comes into contact. If the material does not ignite when in contact with the heated wire, it meets the fire retardant requirements. Glow wire testing is widely used in the household appliance industry to assess the combustibility of various plastic materials and cables used in electrical components in order to ensure the safety of products. In addition, this test can also be applied to industrial sectors such as automobiles, ships, and buildings. Effective application of glow wire testing can help improve the safety performance of household appliances, automobiles, ships, and buildings to reduce the risk of fire. Glowwire testing is an important means for evaluating combustibility and must be carried out according to the test regulations of GB/T5169.10-13 and using glow wire test standard heat wire equipment and testing methods. The implementation of glow wire testing provides a reliable basis for testing and evaluating hazardous substances.