IEC 60112 PTI And CTI Comparative Tracking Indices Tester For Solid Insulating Materials

Tracking Indices Tester Introduction:

The tracking tester is a special testing instrument developed, designed and manufactured in strict accordance with GB4207, IEC60112 and other standards. It is suitable for research, production and quality inspection departments of lighting equipment, low-voltage electrical appliances, household appliances, machine tool electrical appliances, motors, power tools, electronic instruments, electrical instruments, information technology equipment, and is also suitable for insulating materials, engineering plastics, electrical connectors, and accessories industries. It simulates the determination of the tracking index and the tracking resistance index under humid conditions, and has the characteristics of simplicity, accuracy, reliability and practicality.

Tracking Indices Tester standard:

ASTM D 3638-92
IEC60112 
UL746A 

Tracking Indices Tester Test principle:

It is used to evaluate the tolerance of the surface of solid insulating materials under the combined action of electric field and contaminated medium, and to determine its comparative tracking index (CTI) and proof tracking index (PTI);
Comparative Tracking Index (CTI): The highest voltage value that the surface of the insulating material can withstand 50 drops of electrolysis (0.1% ammonium chloride aqueous solution) without forming a leakage trace, in V.
Proof Tracking Index (PTI): The voltage required for the material surface to form a permanent conductive carbon path after withstanding the action of 50 drops of electrolyte at a rate of one drop per 30 seconds, expressed in V.

Tracking Indices Tester Sample requirements;

1. Plates and sheets with a diameter of 30 mm or more, or length and width greater than 30 mm; thickness > 3 mm, samples can be stacked, and the surface is flat;
2. Testable voltage: up to 600 V.

Tracking Indices Tester Main feature:

1.The combustion chamber paint treatment; nice, corrosion-resistant; dimensions: 1200mm X 600mmx 1200mm;
2. All sample holder made of stainless steel manufacturing;
3. The device consists of voltmeter, ammeter, time overcurrent relays, power supplies, circuit control system, push button switches, lights and other components;
4. Automatic drip device includes dropping tube, drip nozzle, counting means counting device drip, drip control device, dropping the volume measuring tools;
5. Drip nozzle device can be adjusted; adjust the height of 30-40mm; ensure dripping position in the middle of the two electrodes;
6. The electrode means comprises platinum electrode, the electrode fixtures, 4mm gauge, etc., the electrode can be adjusted, removable;
7. Electrode width 5mm, thickness 2mm, 99.9% purity platinum, 30 to 60 degrees tip;
8. The electrode sample pressure adjustable, adjustable range (1.00N ± 0.001N); electrode distance 4.0mm ± 0.01mm, the angle 60 ° ± 5 °;
9. With the sample stage;
10.With the glass: Thickness ≥4mm;
11. With electrolyte: sodium chloride and alkyl naphthalene sulfonic acid reagent each bottle.

Safety control system:

1.The test voltage: 0 ~ 600V adjustable
The maximum error of voltmeter displays : 1%;
2. Short-circuit current: (1 Guests 0. 1) A,
The voltage drop value does not exceed 10%
3. The test current exceeds 0.5A duration of more than two seconds, the system automatically shut down equipment;
4.Security door control system; the door opens, the test system is not working;
5.The electrode: 5mm × 2mm rectangular platinum electrode and brass electrode of each pair meet size requirements of IEC60112 Figure B.1;
6.The electrode: the angle formed between the electrodes is 60 ° disabilities 5 °, a pitch of (4 Soil 0.1mm);
7.The electrode: the sample pressure: 1 00N disabilities 0.05N;.
8.Drip system: (30 ± 5) seconds (on time 29.8S + open drip drip duration 0.2S) automatic counting, digital display (can be preset), 50 drops of time: (24.5 Soil 2) min;
9.Drip systems: a drop of fluid needle tip to the sample surface height: 35mm disabilities 5mm (attach a gauge for measuring your reference);
10.Drip systems: drip Weight: 20 drops: 0.380g ~ 0.489g; 50 drops:.. 0 997g ~ 1 147g;
11.PLC with touch screen control system; to achieve test smarter, more convenient has been operated.
12.The test data is automatically recorded, automatic storage, free retrieval;

Tracking Indices Tester  Specification: