TH8058 Electrical Tracking Test Apparatus
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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.
Product Description
The tracking resistance test (also known as the comparative 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—typically a 0.1% ammonium chloride solution—is applied at a prescribed rate onto the surface of a solid insulating material between platinum electrodes of defined dimensions (2 mm × 5 mm). A voltage is then applied, and droplets of the conductive liquid are dispensed at a fixed height (35 mm) for a set duration (30 seconds). The test evaluates the surface resistance of solid insulating materials 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 involved with lighting equipment, low‑voltage electrical appliances, household appliances, machine‑tool electrical components, motors, power tools, electronic instruments, electrical measuring devices, and information‑technology equipment. It is also suitable for industries dealing with insulating materials, engineering plastics, electrical connectors, and related accessories.
Technical Specifications:
1. Electrode material: Electrode tip—platinum metal
2. Electrode pressure: 1.0 ± 0.05 N
3. Electrode spacing: 4.0 mm ± 0.01 mm, included angle 60° ± 5°
4. Electrode voltage: 100–600 V (48–60 Hz), adjustable
5. Drip time: 30 s ± 5 s
6. Drip height: Adjustable between 30 and 40 mm.
7. Drop size: 44–55 drops/cm³, adjustable
8. Drip count: Adjustable from 0 to 9,999 times
9. Outer carton dimensions: 1000×650×1300 mm
10. Studio volume: 0.5 m³
11. Experimental background: Dark background.
Configuration: one 5 mL beaker, one bottle of ammonium chloride, and one 4 mm scale.
Aluminum-plastic exhaust duct, 3 meters; one power cord.
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