IEEE 48-1998 pdf download IEEE Standard Test Procedures and Requirements for Alternating- Current Cable Terminations 2.5 kV Through 765 kV
The definitions and terminology used herein apply specifically to cable terminations treated in this standardFor additional definitions, see (Bl5].
3.1 apparatus termination: A termination designed for use in sealed enclosures where the externaldielectric strength is dependent upon liquid or special gaseous dielectric and where the ambient temperatureof the medium immediately surrounding the termination may reach 55 °C
3.2 breakdown: A disruptive discharge occurring through a dielectric.
3.3 chalking: The powdered surface on the polymeric insulator consisting of particles of filler resulting fromultraviolet exposure or leakage current activity.
3.4 cracking: Rupture of the polymeric insulator material to depths equal to or greater than 0.1 mm.
3.5 crazing: Surface microfractures of the insulator material to depths less than 0. mm resulting fromultraviolet exposure.
3.6 design tests: Tests made by the manufacturer to obtain data for design or application, or to obtaininformation on the performance of each type of high-voltage cable termination.
3.7 external connector (aerial lug): A connector that joins the external conductor to the current-carryingparts of a cable termination.
3.8 field tests: Tests that may be made on a cable system (including the high-voltage cable terminations) bythe user after installation, as an acceptance or proof test.
3.9 flashover: A disruptive discharge around or over the surface of an insulating member, between parts odifferent potential or polarity, produced by the application of voltage wherein the breakdown path becomessufficiently ionized to maintain an electric arc.
3.10 high-voltage cable termination: A device used for terminating alternating-current power cableshaving laminated or extruded insulation rated 2.5 kV and above. which are classified according to thefollowing:
a)Class 1 termination: Provides electric stress control for the cable insulation shield terminus:provides complete external leakage insulation between the cable conductor(s) and ground; andprovides a seal to the end of the cable against the entrance of the external environment and maintainsthe operating design pressure, if any, of the cable system. This class is divided into three types:
Class 1A: For use on extruded dielectric cable
Class 1B: For use on laminated dielectric cable
Class 1C: Expressly for pressure-type cable systems
0Class 2 termination: Provides electric stress control for the cable insulation shield terminus, andprovides complete external leakage insulation between the cable conductor(s) and ground.
cClass 3 termination: Provides electric stress control for the cable insulation shield terminus
NOTE-Some cables below 15 kV do not have an insulation shield.Terminations for such cables would not be requiredto provide electric stress control. In such cases, this provision would not be part of the definition.
IEEE 48-1998 pdf download
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