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HomeTest Equipments › CategoriesElectrical Appliances Testing Equipment Scratch Tester
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Scratch Tester

Scratch Tester meets the standards of EN/IEC 60335-1 clause 21.2 and EN/IEC 60950 clause 2.10.8.4

Scratch Tester is designed to test whether accessible parts of the solid insulation are scratched and have sufficient strength to prevent the penetration of sharp implements.

Scratch Tester can also be used to check the abrasion resistance of printed coated circuit boards.

Teklif Al
SKU: MTAST-1E Category: Electrical Appliances Testing Equipment
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Description

Scratch Tester Features

The surface of the insulation is scratched by means of a hardened steel pin, the end of which has the form of a cone with an angle of 40°.

Its tip is rounded with a radius of 0,25 mm ± 0,02 mm. Scratching through five pairs of conductive parts, including its interval, an interval should be subjected to the largest part of the potential gradient during the test.

And the pin is held at an angle of 80° – 85° to the horizontal and loaded so that the force exerted along its axis is 10 N ± 0,5 N.

The scratches are made by drawing the pin along the surface of the insulation at a speed of approximately 20mm/s±5mm/s. Two parallel scratches are made.

They are spaced sufficiently apart so that they are not affected by each other, their length covering approximately 25 % of the length of the insulation.

Two similar scratches are made at 90° to the first pair without crossing them. The scratches shall be at least 5 mm apart and at least 5 mm from the edge of the specimen.

The device adopts PLC + touch screen control system, stepping motor drive, the scratch distance, scratch times and speeds can be preset, the test pin can rotate 90 ° angle automatically, scratch test in both vertical and horizontal directions can be easily realized.

Scratch Tester Technical Parameters

Power Supply 220V/50Hz
Control PLC control, 7-inch color touch-screen operation, stepper motor driver
Station 1
Scratch Pin Rounded with a radius of 0,25 mm ± 0,02 mm
The end of Scratch Pin Form of a cone with an angle of 40°
Scratching Speed 20±5mm/s, can be preset
Scratching Force 10N±0.5N
Scratching Distance 0-50mm, can be preset
Scratching Angle 80-85°, fixed by fixture
Test  Sample Tray Can be rotated 90 °, multiple mounting holes for the installation of different samples
Optional 30N±0.5N Load Device
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Our company, which provides service in the production, import and export of Test Devices, provides production, supply, maintenance and repair services in accordance with international standards by prioritizing customer satisfaction with its expert staff.

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insulation scratch

Scratch Tester