Tracking index/resistance

The two compounds which contain glass- and mineral-fillers provide the best arc resistance and tracking Index. All three materials provide a good balance of electrical properties. 

The apparatus supplied by ATS FAAR (Table 18.6) evaluates, during a short period of time, the low-voltage (up to 600 V) track resistance (or comparative tracking index) of... 

PAEK can be used as good electrical insulators in a wide range of environments and over a wide range of temperatures. The polar nature of the carbonyl group means that materials such as fluoropolymers have superior dielectric constants and dissipation factors. However, relative to fluoropolymers, PAEK insulation offers lower toxicity in fire situations and more resistant mechanical properties. PAEK can have a relatively low comparative tracking index which measures susceptibility to electrical breakdown on the surface of an insulator. Possibly this reflects the relatively easy degradation of PAEK to carbonaceous char. 

Dielectric constant at 1 MHz Power factor at 1 MHz Volume resistivity Comparative tracking index Arc resistance... 

Dielectric Strength Volume Resistivity Surface Resistivity Dielectric Constant Dissipation Factor Comparative Tracking Index Arc Resistance... 

CTI Comparative Tracking Index. A test used to assess materials for their resistance to surface tracking when subjected to an electric stress in a wet environment. The result is expressed as the maximum voltage (in Volts) at which tracking does not occur when 50 drops of an ionic solution (salt solution of 0.1% ammonium chloride) are applied to the active region of test specimen. 

Liquid-eontaminated inclined plane tracking Tests for electrical insulation Resistance to dust and fog tracking Measurement of tracking Resistance to water treeing Traeking index using various electrodes... 

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