Instruction:
The best method for testing electro technical products with regard to fire hazard is to duplicate exactly the conditions occurring in practice. In most instances, this is not possible. Accordingly, for practical reasons, the testing of l products with regard to fire hazard is best conducted by simulating as closely as possible the actual effects occurring in practice.
Parts of insulating material or other material which are liable to propagate flames inside the equipment may be ignited by glowing wires or glowing elements. Under certain conditions
(for example, a fault current flowing through a wire, overloading of components, and bad connections), certain elements may attain a temperature such that they will ignite parts in their vicinity.
Application:
Glow wire apparatus is suitable for lighting equipment, low-voltage electrical appliances, electrical instruments, and other electrical and electronic products and non-metallic materials and parts for household electrical appliances, such as: switch shell, relay socket. Wide range of applications. It can be applied to the production enterprises, quality inspection departments, institutions and research institutes and other institutions.
Standards:
- IEC 60695-2-10 Fire hazard testing Part 2-10: Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedure
- VDE 0471 Fire hazard testing; part 2: test methods; glow-wire test and guidance
Scope of application:
The glow wire tester is used to simulate the fire generation of materials without contacting the flame source according to IEC60695-2-10:2000-IEC60695-2-13:2000 (glow wire/hot wire, basic test method, glow wire test device and general test procedure), UL746A，IEC829，DIN695，VDE0471.
The glow wire tester processes the heating wire of specified material (4NI80/CR20) and shape in large electric current to the test temperature (550℃-960℃), and apply specified pressure（1.0N）on the glow wire to contact the specimen for 30s. Visually assess the ignition of the specimen and bedding materials, which can be used to evaluate the fire hazard of finished products of electrician and electronic equipment. The tester is suitable for solid insulation material and other solid combustible materials to determine the ignition property, ignition temperature(GWIT), flammability and flammability index(GWFI).
Glow-wire tester serves for lighting device、 low-voltage electrical appliances、 household appliances、motor、 Machine appliances, electrical tools, electronic equipment, Electrical instrumentation, information technology device, electrical connectors and piers and other electrical and electronic products and components research Production sector, and also applies to insulating materials, engineering plastics or other solid combustible materials industry.
Glow wire tester which applies the integrated design of test chamber part and control part of is easy on-site installation and commissioning. The box shell
