UL746A Clause 34 Glow-Wire Ignitability Tester To Determine The Relative Ignitability

34 Glow-Wire Ignitability Test
34.1 General
34.1 .1 The test method for the determination of ignitability of an insulating material from an electrically heated wire is described in the Method for Glow-Wire Ignitability Test on Materials, IEC 695-2-1 /3. Flammability Testing Equipment
34.1 .2 The Glow-Wire Ignition Temperature (GWIT) is to be assigned as the temperature which is 25°C (45°F) higher than that temperature of the tip of the glow-wire which does not cause ignition during three consecutive tests.
34.2 Significance Flammability Testing Equipment
34.2.1 Either during normal operation, under unusual conditions, or as a result of malfunctions, some components of an electrical apparatus, such as wires or other conductors may become abnormally hot.
When these overheated parts are in intimate contact with the insulating material, ignition may occur. This test is intended to determine the relative ignitability of insulating materials under these conditions. Flammability Testing Equipment

Standard:IEC60695-2-10, IEC60695-2-13 and UL746A.

Application:This device simulates the thermal stress test of glowing component or heat source like overload resistance or ignition source which is caused in a short time. It is suitable for electric and electronic products, household appliances and other material to do fire hazard testing. It is also used in the No flame ignition source fire test to test initiation temperature and flammability index of related glowing filament.

Test sample:Electrical equipment and its components and parts, solid electrical insulating materials and other solid combustible materials. Flammability Testing Equipment

Feature: Test principle: the glowing filament whose material and shape is required(Ni77/Cr20) is heated to the testing temperature of 550 ℃ ～ 960 ℃ for 1 min by using the glow wire tester with large current. Then using required pressure (0.95N) vertically burns the test sample for 30s. By observing whether the test sample and bedding object ignite or the burning time, the users can judge the ignition danger of electric and electronic products. It is used for the ignition test, ignition temperature (GWIT) test, flammability test and flammability index (GWFI) test of solid insulating material and other solid combustible material. Flammability Testing Equipment

Parameters:

Guangzhou HongCe Equipment Co., Ltd (hereinafter referred to as HongCe) is located in Guangzhou, China, since 2003, engaged in developing and providing test equipment and detection system for electronic & electrical products, house appliances and other products. HongCe is professionally dedicated in providing laboratory testing equipment and production line testing system, we are now the high-tech enterprises with technical superiority and R & D capabilities in test instruments industry.

Our core technologies encompass vacuum, leak testing & automatic control, laboratory test equipment & solution. Our technical leader is an expert in leak detection, his more than 2 decades of experience are a great asset to our firm. Our technical team is comprised of wellexperienced engineers and technicians.

HongCe laboratory testing equipment are designed and manufactured as per the requirements of GB, IEC, EN, UL, VDE, BS, AS, ISO standards and etc. Our main products are: switch, plug, socket and coupler test equipment; mechanical strength impact test equipment; material fire hazard test equipment, enclosure protection test probes; waterproof and dustproof environmental testing equipment; household appliances testing equipment; wire and cable testing equipment; luminaires test equipment; electric tools test equipment; information technology and audio & video test equipment. Our products are widely used in domestic and worldwide measurement & certification institutions, inspecting mechanism, laboratories, export & import inspection and quarantine bureau, various production companies and etc. Our customer includes Bureau Veritas, CSA, ITS, UL, TUV Rheinland, TUV SUD, SGS and etc.

HongCe production line testing equipment are mainly customized according to client's workpieces, such as automatic leak testing system, gas recovery system, other tailor-made system based on vacuum & leak testing technology.