Compliance
It is constructed in compliance with IEC 60112, IEC 112, IEC 60335-1, IEC 61058-1, IEC 60065, IEC 60669-1, IEC 60884-1, IEC 60950-1, IEC 61010-1, BS 1363, IEC 60598-1, IEC 60320-1, IEC 60898-1, IEC 60400, IEC 60238, IEC 60730-1, GB4207, GB7000.1, UL746A, DIN53480, ASTM D 3638, VDE 0303, DIN 53480, GB/T 4207,…
Introduction
JY-LTT01/02 TRACKING TEST APPARATUS is intended for determining the degree of protection against formation of conducting paths in solid insulating materials, due to the electric stress and electrolytic contamination of the surface.
This test is complex and the person performing it should be accurate and maintain good cleansiness of test equipment. The repeatability and comparability of test results depend on many different factors. Therefore we designed TRACKING TEST APPARATUS with the following goals:
- Reliability
- Maximum repeatability of test results
- Maximum comparability of test results
- Ease of operation
- Ergonomical design
Main Features
Description
The Tracking Tester is used for the determination of comparative tracking indices of solid electrical insulating materials on pieces taken from parts of electrical and electronic equipment and on plaques of material using alternating voltages. In normal use, components made of insulating material may become moist and dirty. If the impurities are electrically conducting, current will flow between parts of different voltage potentials creating a track. As a result, small flashovers may occur, which cause thermal stresses to the surface of the insulating material. The visual result of thermal decomposition of the insulating material caused by the tracking current is called the track. The interconnecting formation of carbonized material forms a tracking path, by which a lasting current conducting connection results. Thereafter the component cannot fulfill its intended electrical function in the majority of cases and parts may catch fire. The resistance of an insulating material to track formation is called the tracking resistance.
JY-LTT01/02 the Tracking Tester is a fully automatic instrument contained in its own cabinet to maximize the safety of the operator. Inside the well lit cabinet, a test specimen is placed on a glass plate and two platinum electrodes are lowered onto the top surface. A gauge block is supplied with the instrument to ensure the electrodes have the proper distance between them. The table height is easily adjustable to ensure the proper angle of the electrodes and height of drops. The rest of the test is controlled from outside the test chamber with the door closed. The voltage, limiting current, drip rate and number of drips are all set on the control panel. An operator should observe the test to see if a flame ignites. The instrument sounds an alarm if there is a tracking failure of at least two seconds.
Technical Specification
|
Parameter\ model |
JY-LTT01 (0.1m³) |
JY-LTT02 (0.5m³) |
|
Working voltage |
220V/50Hz， or 110V/60Hz |
220V/50Hz，110V/60Hz |
|
Testing voltage |
0～600V adjustable，precision 1.5％ |
0～600V adjustable，precision 1.5％ |
|
Timing device |
9999X0.1S |
9999X0.1S |
|
Electrode |
Platinum electrode and brass electrode each for a pair |
Platinum electrode and brass electrode each for a pair |
|
Electrode dimension |
（5±0.1）×(2±0.1)×(≥12)㎜，30°slant |
（5±0.1）×(2±0.1)×(≥12)，30°slant |
|
Electrode included angle and distance |
60°±5°,distance is (4±0.1㎜) |
60°±5°, distance is (4±0.1㎜) |
|
Electrode pressure |
1.00N±0.05N(digital display is optional) |
1.00N±0.05N（digital display is optional） |
|
The interval of dropping liquid |
30±5S，adjustable |
30±5S，adjustable |
|
Dropping liquid height |
35±5mm |
35±5mm |
|
Dropping liquid delay |
0.2S(solenoid valve opening time) |
0.2S(solenoid valve opening time) |
|
Dropping liquid size |
45～50 drip/cm3 |
45～50 drip/cm3 |
|
Time-delay circuit |
2±0.1S(in 0.5A or larger current) |
2±0.1S(in 0.5A or larger current) |
|
Short-circuit pressure drop |
8% MAX |
8% MAX |
|
Short-circuit current |
1±0.1A 1％ |
1±0.1A 1％ |
|
Wind speed |
0.2m/s |
0.2m/s |
|
Environmental requirement |
0～40℃，relative humidity≤80%，in the place of no obvious vibration and corrosive gas |
|
Accessories (Included in price)
Includes:
1 set of platinum electrodes 99% minimum purity,
1 bottle of ammonium chloride 99, 8% purity,
1 glass Platform,
1 scale, 4 mm,