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Since 1999, test methods for freezing conditions, including ice and snow, have been refined by the IEEE Dielectrics and Electrical Insulation Society and IEEE Power and Energy Society Task Forces on insulator icing. In this guide, the discussion is consolidated, and specific, appropriate, and reproducible test methods for selecting adequate insulators are recommended. Test methods for substation and line insulators at distribution and transmission voltage levels are included in the scope. Special measures to reproduce the environmental and insulator parameters that influence the risk of flashover in freezing conditions are detailed in the test methods. Statistical methods are also recommended to assist in the insulator selection process. Keywords: cold fog, contamination, high-voltage testing, ice, icing, insulators, salt fog, snow.
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A test procedure (Combination of IEEE Std 275-1992 and IEEE Std 429-1994) for comparing two or more insulation systems in accordance with their expected life at rated temperature is outlined. The procedure is limited to insulation systems for alternating-current (ac) electrical machines using form-wound pre-insulated stator coils rated 15 000 V and below. Keywords: ac electric machinery, insulation system, stator coils, thermal evaluation.
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This corrigendum corrects IEEE Std C57.19.03-1996. The standard applies to outdoor and indoor power apparatus dc bushings of condenser type that have basic impulse insulation levels of 110 kV and above for use as components of oil-filled converter transformers and smoothing reactors, as well as air-to-air dc bushings. This standard defines the special terms used, service conditions, rating, general requirements, electrical insulation characteristics, and test procedure for the bushings for dc application.
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Procedures for cleaning contaminated electrical insulators (excluding nuclear, toxic, and hazardous chemical contaminants) of all types, using various equipment and techniques, are provided.
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The Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) is sponsored by the IEEE Dielectrics and Electrical Insulation Society to provide an international forum for the discussion of current research on electrical insulation, dielectric phenomena and related topics.
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This Section of the A. I. E. E. Standards, "Insulator Tests" is a revision of a former A. I. E. E. Standard No. 41, entitled "Insulator Test Specifications". The work of revision was handled by a Sectional Committee organized under the procedure of the American Standards Association. It has received approval as an American Standard through presentation to the American Standards Association under the joint sponsorship of the American Institute of Electrical Engineers and the National Electrical Manufacturers Association.
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These standards comprise a manual of test procedures to be followed in making tests to determine the characteristics of insulators to be used on electric power systems. They are not intended to include test procedure for apparatus bushings. Since these standards are not intended to be insulator specifications, the individual tests may be made a part of an insulator specification only when specifically designated in contract specifications. In all cases where these standards include high voltage measurements, the methods, equipment, and technique shall be in accordance with American Standards for Measurement of Test Voltage in Dielectric Tests, C68.1-1942 or latest revision thereof.
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These Marine Recommendations have been drawn up to serve as a guide for the equipment of merchant vessels with an electric plant system and electric apparatus for lighting, signaling, communication, power, and propulsion. They indicate what is considered good engineering practice with reference to safety of the personnel and of the ship itself as well as reliability and durability of the apparatus ; it is not intended, however, that improvements, which may be developed from time to time, should be excluded. These Recommendations are intended to supplement the other Standards of the AIEE, which should be followed wherever applicable. Attention is directed to the fact that regulations for electric installations on shipboard are promulgated by the Government Regulatory Agencies and the American Bureau of Shipping. These Recommendations have given due consideration to all the regulations, but since the above referenced sponsoring bodies are frequently modifying the requirements to meet changing conditions, reference should always be made to the latest edition of their requirements.
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