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Comparative Tracking IndexThe Comparative Tracking Index or CTI is used to measure the electrical breakdown (tracking) properties of an insulating material. To measure the tracking, 50 drops of 0.1% ammonium chloride solution are dropped on the material, and the voltage measured for a 3mm thickness is considered representative of the material performance. Additional recommended knowledgeTracking is an electrical breakdown on the surface of an insulating material. A large voltage difference gradually creates a conductive leakage path across the surface of the material by forming a carbonized track. Performance Level Categories (PLC) were introduced to avoid excessive implied precision and bias.
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Comparative_Tracking_Index". A list of authors is available in Wikipedia. |