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What is ISO 11369-2016

ISO 11369-2016, also known as "Plastics - Comparative tracking index (CTI) of insulating materials," is an international standard that provides guidance for evaluating the performance of insulating materials used in electrical and electronic equipment. This standard specifies the test methods to determine the resistance of these materials to comparative tracking.

Importance of ISO 11369-2016

ISO 11369-2016 plays a crucial role in ensuring the safety and reliability of electrical and electronic devices. The comparative tracking index (CTI) indicates the ability of insulating materials to resist the formation of conductive carbon tracks when exposed to electrically conducting contaminants, such as moisture or metallic particles. By complying with this standard, manufacturers can assess the potential risk of failure due to electrical breakdown, thus guaranteeing the quality of their products.

Testing Procedure

The ISO 11369-2016 standard defines a set of procedures to measure the comparative tracking index of insulating materials. The test involves applying an AC voltage to a sample material while simultaneously a conducting fluid onto its surface. The voltage is gradually increased until either a predetermined tracking time elapses or a specified end point is reached. The number of tracking cycles required for the conductive path to form determines the CTI value of the material. Higher CTI values indicate better resistance to tracking, highlighting the material's suitability for specific electrical applications.

Application in Industry

ISO 11369-2016 is widely implemented in the plastics industry, especially for manufacturers of electrical and electronic equipment. By adhering to this standard, companies can ensure compliance with legal and safety requirements. The standard helps identify suitable materials for insulation, preventing potential risks associated with electrical short circuits or fires. Additionally, it allows manufacturers to compare different material options and make informed decisions to optimize the performance and longevity of their products.



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