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Scope of Application: The TH8095 electrical dielectric strength tester is suitable for testing the breakdown strength and voltage‑withstand time of solid insulating materials—such as plastics, films, resins, mica, ceramics, glass, and insulating varnishes—under power‑frequency voltage.
The TH8055 Glow Wire Tester heats an electric heating wire of specified material (Ni80/Cr20) and shape (a Φ4 mm nickel‑chromium wire) to the test temperature (550°C–960°C) using a high current for 1 minute. It then applies a prescribed force (1.0 N) to vertically press the heated wire against the test specimen for 30 seconds, assessing the ignition risk of finished electrical and electronic equipment by determining whether the specimen and underlying substrate ignite or sustain combustion. The instrument also evaluates the ignitability, glow‑wire ignition temperature (GWIT), flammability, and glow‑wire flammability index (GWFI) of solid insulating materials and other solid combustible substances. The glow wire tester is suitable for research, production, and quality‑control departments of lighting equipment, low‑voltage electrical appliances, electrical instruments, and other electrical and electronic products and their component parts.
This instrument complies with the requirements of GB 8410-2006, TL 1010, GM 6090M, DIN 7520, and GM 9070P, and is suitable for determining the flame‑retardant performance of automotive interior materials.
The tracking test (electrical tracking index test) is a simulated laboratory procedure specified in standards such as IEC 60112, UL 746A, GB/T 4207, GB 4706.1, and ASTM D 3638‑92. In this test, a conductive liquid (0.1% NH₄Cl) of a prescribed drop volume is applied at a fixed voltage, for a set duration (30 s), and at a defined height (35 mm) between platinum electrodes of specified dimensions (2 mm × 5 mm) on the surface of solid insulating materials. The test evaluates the resistance of solid insulating materials to electrical tracking under the combined effects of an electric field and a moist or contaminated environment, determining their comparative tracking index (CTI) and proof tracking index (PTI). This method is applicable to research, production, and quality‑control departments in sectors such as lighting equipment, low‑voltage electrical appliances, household appliances, machine‑tool electrical devices, electric motors, power tools, electronic instruments, electrical measuring instruments, and information‑technology equipment. It is also suitable for industries dealing with insulating materials, engineering plastics, electrical connectors, and related components.
