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Tracking Tester
Brief Introduction
Tracking tester(Tracking Index Test)is a simulation experiment
project using non-flame ignition source in accordance to standard
requirements of IEC60112 ,UL 746A ,GB/T4207,GB4706.1,ASTM D
3638-92,etc.
tracking test of leakage current (Tracking Index Test)on the
surface of solid insulating material between platinum electrodes in
required size ( 2mm × 5mm ),is to exert voltage and drip down a
conductive liquid (0.1%NH 4 CL) in required droplet volume at a
certain time(30s) and certain height(35mm) ;to evaluate the
resistance of electric leakage performance on the surface of solid
insulating material in electric field and moist or contaminant
medium, under the joint effect;determine Comparative Track Index
(CT1) and proof tracking index (PT1) .Dielectric Tester(Tracking
Index Tester) is suitable for research,production and quality
testing department of lighting equipment,low voltage
apparatus,household appliance,machine tool electric
appliance,motor-driven machine,electric tool,electronic
instrument,electronic gauges and information technology
devices;also suitable for insulating material,engineering
plastic,other solid combustible material,electrical connectors and
accessories industry.
Technical Parameter
1, electrode material:brass electrode head — Platinum
2, welding force:1.0±0.05N
3, electrode distance:4.0mm ± 0.01mm ,angle: 60°±5
4, electrode pressure:100~600V(48~60HZ)adjustable, voltage
decreases to a level less than 8% when short circuit is under the
condition of 1.0±0.1A.
5, droplet height:30~40mm adjustable
6, droplet size:44~55drop/1cm3 adjustable
7, dropping time:30s±5s,
8, dropping number:0~9999t adjustable
9, leakage judgement: loop current larger than0.5A and maintain for
2s;if the electric relay cut off the power,it indicates that the
specimen is unqualified.
10, test process:automatic control with independent ventilation
11, Reference Standard:IEC60112 ,GB/T4207,GB4706.1
12, studio area:no less than0.5 cubic meter
13, external dimension:1100mmW×700mmD×1300mmH
14, Power:1KW/220VAC/48-60Hz
15, control:single chip Microcomputer touch screen+button type
double control system,high accuracy temperature gauge,independent
electrical control system,strong anti-interference.
16, operation with high efficiency:One-touch operation ,fast and
highly effectively
17, standard integration:program test procedures in accordance with
actual test procedures.
3.Test procedure
* this tester should be placed on a level table
* table size no less than 1500W * 900D * (600-800)H mm
* distance to the wall: > 200mm
* exhaust pipe: diameter of 100mm
* the test room should be independent room equipped with exhaust system and firefighting device
Preparation
2.1) install the exhaust pipe, tighten the fitting
2.2) check the power supply wiring, ensure it’s correct and grounded
2.3) make up test resolution, and adjust the dropping device accord to standard requirements of:
| Test solution A (CTI A) | 395 Ωcm |
| Test solution B (CTI B) | 198 Ωcm |
Drops of solution fall on to the specimen at intervals of 30±5s;
The drops shall fall more or less centrally between the electrodes from a height of 35±5mm;
The time for 50 drops to fall on to specimen shall be 24.5±2min;
The mass of a sequence of 50 drops shall lie between 0.997g and 1.147g;
The mass of a sequence of 20 drops shall lie between 0.380g and 0.480g.
Attention:
Solution prepared should be used within 4 hours to ensure conductivity qualified.
Filling the solution after its full melted, preventing particles clog pipes.
Emptying the liquid when test finished, and wash the pipe with water.
2.4) specimen preparation
The specimen should be flat and clean, flat surface no less than 20mm*20mm, thickness of specimen shall be 3mm or more.
2.5) electrode installation
Adjust the angle(60±5°)and distance(4±0.1 mm) between two electrodes;
Adjust the pressure by move the weight to 1±0.05N；
Fix the screws, and close the window.
Set test parameters
Power on, you can see the welcome interface on touchscreen, it will go operation interface automatically in 3s.
【power】, click power and rotate the voltage regulator, to preset the test voltage
【drip】, click drip, resolution drips, and the counter counts
【exhaust】, click to control the fan
【light】, click to control the light
【short】, click short and rotate the current regulator, preset short-circuit current as 1.0A
【start】, click start, enter testing mode. Tester will stop automatically when the current over 0.5A for 2s
Attention
Tracking Tester instruction manual
