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IEC60112 Tracking Index Test Apparatus for PTI and CTI Testing

 https://www.pegotester.com/IEC60112_tracking_index_tester.html#_jcp=3_17

1. Introduction

The tracking index test apparatus is designed according to IEC60112, UL746A, GB.T4207, GB4706.1 and TMD 3628-92. On the surface of the solid insulating material, a certain voltage is applied between the platinum electrodes (2 mm × 5 mm) , and drops the pollution liquid (0.1% NH4CL) with specified droplet volume in fixed height (35mm) for 30s to evaluate the resistance of the surface of solid insulating materials under the combined action of electric field and contaminated medium, and its Comparative tracking index (CTI) and proof tracking index (PTI) are determined. Tracking index test apparatus is mainly used in the industries of lighting appliance, low voltage appliance, household appliance, motor, electronic appliance, instrument and etc. It is a good tool for research department, production department and QC department.

The tracking index test apparatus is controlled by single chip and push buttons. The test apparatus is built-in air exhaust, the front panel is transparent for easy observation of the experimental process.

 

Proof Tracking Index (PTI): the voltage value of the material subjected to 50 drops of electrolyte without electrical tracking, the unit is volt.

Comparative Tracking Index (CTI): The highest voltage value at which the surface of the material can withstand 50 drops of electrolyte without forming electrical tracking, the unit is volt.

Test solutions: The preparation ratio is 1:1000, that is 0.1g of NH4CI with 100g (100ml) of distilled water

 

2. Parameter:

Electrode material

platinum (Pt)  purity≥ 99.8%

Electrode size

2mm±0.1mm)×(5mm±0.1mm)×(40mm±5mm), length≥12mm, Angle of chisel-edged: 30°±2°

Electrode distance

4.0mm±0.01mm, angle: 60°±5°

Electrode pressure

1.00±0.05N

Electrode distance

4.0mm ± 0.01mm

Angle

60°±5

Electrode voltage

100~600V

Height of the drops

35mm±5mm adjustable

Size of drops

20 drops:  0.380g~0.480g, 50 drops: 0.997g~1.147g

Interval of the drops

30s±0.1s, 50 drops: 24.5min±2min

Test solutions resistance

Solution A: 0.1%NH4Cl，3.95±0.05Ωm, solution B: 1.7±0.05Ωm

Number of drops

0~9999 (presettable, record and display)

Test wind speed

0.2m/s

Short circuit current drop

1.0A±0.1A drop 8%

Leakage indicator

0.50A±10% , 2.00s±10%

Thermal radiation baffle

Automatic masking

Safe operation interface

automatically power off upon open the glass window

Standard

IEC60112, UL746A, ASTM D 3638-92, DIN 53480

Working studio

0.5m3 ( customizable 0.1m3, 0.5m3 or 0.75m3 according to different standard), exhaust hole: Φ100mm

Outer dimension

600mm (W)*500mm (D)*1000mm (H)

Working Power

220V/50-60Hz, 0.6KVA

 

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