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24 May, 2021 618 Views Author: LISUN

TTC-1 Tracking Test Chamber is Designed According to IEC60112-2009

The full name of IEC60112-2009 is <Method for the determination of the proof and the comparative tracking indices of solid insulating materials>. It has been prepared by subcommittee 15E: Methods of test, of IEC technical committee 15: Insulating materials.The following is the original content of IEC60112-2009 Principle.

The upper surface of the test specimen is supported in an approximately horizontal plane and subjected to an electrical stress via two electrodes. The surface between the electrodes is subjected to a succession of drops of electrolyte either until the over-current device operates, or until a persistent flame occurs, or until the test period has elapsed.

The individual tests are of short duration (less than 1 h) with up to 50 or 1 00 drops of about 20 mg of electrolyte falling at 30 s intervals between platinum electrodes, 4 mm apart on the test specimen surface. An a.c. voltage between 1 00 V and 600 V is applied to the electrodes during the test.

During the test, specimens may also erode or soften, thereby allowing the electrodes to penetrate them. The formation of a hole through the test specimen during a test is to be reported together with the hole depth (test specimen thickness). Retests may be made using thicker test specimens, up to a maximum of 1 0 mm.

NOTE The number of drops needed to cause failure by tracking usually increases with decreasing applied voltage and, below a critical value, tracking ceases to occur.

LISUN designed TTC-1 Tracking Test Chamber. Due to the electric stress and electrolytic contamination of the surface. This method simulates tracking currents on insulation material by providing drops between electrodes. During the process of normal use, insulating material may be exposed to moisture and dirt, and may cause stress and fire hazard if it is conductive.

TTC-1 Tracking Test Chamber

TTC-1 Tracking Test Chamber

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

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