Glow Wire Resistant Tester (1100X500X1000 mm)

Product Details

The CKINSTO Glow Wire Test Apparatus (or Glow Wire Resistant Tester) is a standardized piece of safety testing equipment used to evaluate the resistance of non-metallic materials (primarily plastics and insulating materials) to heat and fire initiated by an overheated electrical component. This test is a core requirement for components used in electrical and electronic products to comply with international safety standards.   Key Purpose and Standard Compliance   Objective: To simulate the thermal stress and potential for ignition caused by a malfunctioning or overloaded electrical part (like a resistor, conductor, or joint) that reaches high temperatures and comes into contact with surrounding non-metallic materials. Safety Verification: It determines if the material will ignite and, if it does, whether it will self-extinguish within a specified short time, thereby preventing the spread of fire. Standards: The tester is designed and built to meet the requirements of the IEC 60695-2 series, specifically: IEC 60695-2-10: Glow-wire apparatus and common test procedure. IEC 60695-2-11: Glow-wire flammability test method for end products (GWFI). IEC 60695-2-12: Glow-wire flammability index (GWFI) test method for materials. IEC 60695-2-13: Glow-wire ignition temperature (GWIT) test method for materials.   Core Technical Features   Feature Description Importance Glow Wire Element A loop of Nickel-Chromium (Ni/Cr 80/20 alloy) wire, typically $4.0 \text{ mm} \pm 0.04 \text{ mm}$ in diameter. The specified material and diameter are crucial for maintaining temperature stability and complying with IEC standards. Temperature Control A highly precise PID Digital Temperature Controller and a robust current source. Ensures the glow wire's tip temperature (e.g., $550^{\circ}\text{C}$ up to $960^{\circ}\text{C}$) is maintained within $\pm 3^{\circ}\text{C}$. Force Application A movable carriage or sled that holds the test specimen. Applies a constant, standardized force of $1.0 \text{ N}$ $(\pm 0.1 \text{ N})$ when the specimen contacts the glow wire. Control System Often PLC-controlled with a Touchscreen HMI. Allows precise, programmable setting of parameters like contact time (e.g., 30 seconds), test temperature, and recording of results. Test Chamber A fully enclosed, draft-free chamber with a dark background. Essential for accurate observation of any flame or glow and to prevent external air currents from affecting the burn behavior. Timing Devices Automated timers for measuring key events. Accurately measures: Application Time (when the wire touches), Ignition Time ($t_i$), Afterflame Time ($t_a$), and Afterglow Time ($t_e$).   Key Test Outputs   The tester helps determine two main material properties: Glow Wire Flammability Index (GWFI): The highest temperature at which the material, when tested, does not ignite, or if it does, the flame self-extinguishes within 30 seconds  and no material below the specimen ignites. Glow Wire Ignition Temperature (GWIT): The lowest temperature that causes sustained ignition .