1.Reference standard:
IEC60112 IEC60335-1 IEC60598-1
2.Introduction:
Tracking index apparatus / earth leakage 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.
3.Technical parameters:
Electrode Materials | The electrode caput of brass and platinum |
Electrode Distance | 4.0mm±0.1mm,60±5°angle |
Test Voltage | 100~600V adjustable, displayed value: r.m.s |
Test Current
| Current limiting 1A±0.1A adjustable, |
displayed value:r.m.s, tolerance of 1.5% | |
Electrode Dimensions
| width: 5mm±0.1mm, |
thickness: 2mm±0.1mm, | |
length >12mm, | |
end chisel-edge angle : 30°±2°,platinum. | |
Electrode Pressure | 1.00N±0.05N |
Dripping Nozzle | outer diameter: 0.9mm~1.2mm for solution A |
0.9mm~3.45mm for solution B | |
Dripping Interval | 0-99 seconds (adjustable),the time for 44-55/1cm3(adjustable) drops to fall on the specimen shall be (30±2)min. |
Heigh Drops | 30-40mm±5mm(adjustable) |
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