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Solid Insulating Materials Tracking Test Apparatus
1, Scope of application:
The leakage tracking tester is designed on the surface of solid
insulating material, with the specified size (2mm × 5mm) between
platinum electrodes, apply a certain voltage and drop the polluted
liquid (0.1% NH 4 CL) of the specified droplet volume at a fixed
height (35mm) at a fixed time (30s) to evaluate the resistance of
the surface of solid insulating materials under the combined action
of electric field and polluted medium, and measure its comparative
electric trace index (CTI) and resistance to electric trace index
(PTI).
It is applicable to the research, production and quality inspection departments of lighting equipment, low-voltage appliances, household appliances, machine tool appliances, motors, electric tools, electronic instruments, electrical instruments, information technology equipment, as well as the industries of insulating materials, engineering plastics, electrical connectors and accessories.
2, Performance index:
(1) Electrode: two rectangular platinum electrodes with a sectional
area of 2mm × 5mm,The edge at one end has a 30 degree bevel.
(2) The force exerted by the electrode on the surface of the sample
is 1.0N ± 0.5
(3) When the short-circuit current is 1.0A, the drop value is ≤ 50V
when the voltage is 600V
(4) Scoring judgment: 0.5A or more current lasts for 2s, cut off
the power output
(5) Dropping device:
- The time interval of solution dropping is 30s
- Drop height: 30~40mm
- Dropping size: 20mm3~23mm3
(6) Test solution
(7) Equipped with force measuring device:
- (0.1 ± 0.002)% mass fraction of ammonium chloride (NH4CL) is
diluted with distilled water.
Workroom volume | 0.5m3 (customizable) |
Electrode distance | 4.0mm ± 0.1 |
Test voltage | 100V-600V settable |
Test power | 2100W |
Test power supply | 220V, 50-60Hz |