Comparative Tracking Index Tester

TESTech Instrument (Suzhou) Technologies is one of the leading manufacturers and suppliers of comparative tracking index tester in China. Welcome to wholesale premium test equipment at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.

• The TESTech Comparative Tracking Index Tester is specially designed and manufactured in strict accordance with GB/T 4207, IEC 60112, and related standards.
• It is suitable for research, production, and quality inspection departments for lighting equipment, low-voltage electrical appliances, household appliances, machine tool electrics, motors, power tools, electronic instruments, electrical instruments, information technology equipment, and related industries.
• It is also suitable for insulation materials, engineering plastics, electrical connection parts, and accessory industries.
• The instrument simulates the determination of the comparative tracking index and proof tracking index under wet conditions, and features simplicity, accuracy, reliability, and practicality.

• On the surface of a solid insulating material, a specified voltage is applied between platinum electrodes of defined dimensions, and conductive liquid drops of specified volume and timing are introduced from a fixed height.
• The test evaluates the resistance of the material surface to electrical tracking and determines the comparative tracking index under the combined action of electric field, moisture, and contamination.

• The chamber is painted for an attractive and corrosion-resistant appearance; all specimen fixtures are made of stainless steel.
• The equipment consists of a voltmeter, ammeter, delayed overcurrent relay, power supply, circuit control system, push-button switches, signal lamps, and related components.
• The automatic dripping device includes a dripping cylinder, dripping nozzle, counting device, drip counting device, drip control device, and drip volume measuring tool.
• The dripping nozzle device is adjustable in height from 30 to 40 mm to ensure the droplet falls between the two electrodes.
• The electrode assembly includes platinum electrodes, electrode fixing device, 4 mm gauge, and adjustable removable electrodes.
• Electrode dimensions: width 5 mm, thickness 2 mm, 99.9% pure platinum, pointed tip of 30° to 60°.
• Electrode pressure on the sample is adjustable to 1.00 N ±0.001 N; electrode spacing is 4.0 mm ±0.01 mm and included angle is 60° ±5°.
• Equipped with specimen platform.
• Equipped with glass plate with thickness not less than 4 mm.

• Test voltage: continuously adjustable and digitally displayed from 0 to 600 V; maximum voltmeter display error is 1%.
• Short-circuit current: 1 ±0.1 A, with voltage drop not exceeding 10%.
• If the test current exceeds 0.5 A for more than 2 seconds, the system automatically shuts down the equipment.
• Safety door interlock system prevents the test from operating when the door is open.
• Electrodes are a pair of 5 mm x 2 mm rectangular platinum electrodes with brass projecting parts, compliant with IEC 60112 Figure B.1.
• Electrode included angle is 60° ±5° and spacing is 4 ±0.1 mm.
• Pressure applied by electrodes to the sample is 1.00 N ±0.05 N.
• Drip system timing is 30 ±1 s with automatic counting and digital display; 50-drop time is 24.5 ±2 min.
• Drip needle to sample surface height is 35 ±5 mm, with gauge for reference.
• Drip weight requirement: 20 drops, 0.380 g to 0.489 g; 50 drops, 0.997 g to 1.147 g; number of drops can be set from 1 to 9999.
• The access control circuit prevents the test from starting when the door is open.

• Electrode material: platinum metal.
• Electrode pressure: 1.0 ±0.05 N.
• Electrode distance: 4.0 mm ±0.01 mm; angle 60° ±5°.
• Electrode voltage: 100 to 600 V, 48 to 60 Hz; voltage drop below 10% at short-circuit current of 1.0 ±0.1 A.
• Drop height: adjustable from 30 to 40 mm.
• Drop size: adjustable from 44 to 55 drops per 1 cm3.
• Drop interval: 30 s ±5 s.
• Number of drops: adjustable from 0 to 999.
• Tracking judgment: if circuit current exceeds 0.5 A and lasts for 2 seconds, the relay cuts off the current, indicating the sample is unqualified.
• Reference standards include IEC 60112, GB/T 4207, and GB 4706.1.
• Internal chamber dimensions: 1200 mm x 600 mm x 1300 mm.

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