The latest in electrical insulating materials is presented in 16 papers addressing four major areas: standards, properties of electrical insulating fluids, fire properties, and electrical issues. Standards address the history of ASTM Committee D-9 on Electrical and Electronic Insulating Materials and D-27 on Electrical Insulating Liquids and Gases and their respective roles in the electrical industry. Additional papers discuss the development of standards by the National Electrical Manufacturers Association and IEC Technical Committee 89 on Fire Hazard Testing. Electrical Insulating Fluids covers issues such as the development of a fully biodegradable dielectric fluid; case histories on the removal of transformers from service; analytical techniques to test for moisture; new tests for diagnosing faults in high-voltage transformers; and specifications for electrical insulating mineral oils. Electrical Tests deals with test methods for properties of electrical interest. The section discusses a method for assessing disruptive discharge in liquid and gaseous insulation and standardized testing procedures in partial discharge measurement, which includes about 60 references and compares methods from ASTM, IEC, and the Institute of Electrical and Electronic Engineers. A study is also presented on accelerated aging of organic electrical insulating materials, particularly those used at elevated service temperatures. Fire Issues addresses the response of electrical materials and products to fire including the flame retardancy of various nylon and poly insulation materials; ways of decreasing the mass and volume of electrical cabling systems; and a review of fire tests for electrical materials and products in the U.S. and internationally. For electrotechnical, electrical, electronics (and plastics) professionals.
Author(s): Marcelo M. Hirschler (Editor) Astm Symposium on Electrical Insulating Materials (Corporate Author)
Series: Astm Special Technical Publication// Stp
Publisher: ASTM International
Year: 2000
Language: English
Pages: 215
Foreword......Page 4
Contents......Page 5
Overview......Page 7
ASTM Committee D09?A History of Success......Page 12
Current Structure and Activities of ASTM Committee D09......Page 22
Structures and Activities of ASTM Committee D-27 Electrical Insulating Materials STP 13 76......Page 27
Fire Hazard Testing in the International Electrotechnical Commission Standards: An Overview of IEC TC 89 Activities......Page 33
NEMA Activities and Their Relation to ASTM Committee D09......Page 39
Specification Issues Associated with the Development of an Agriculturally Based Biodegradable Dielectric Fluid......Page 45
The Big Question: When Should One Recommend Taking a Transformer Out of Service?......Page 55
Sources of Systematic Bias Reflected in an ASTM Collaborative Study on Water in Oil Measured by the Karl Fischer Method......Page 67
The Electrochemical Stability of Mineral Insulating Oils......Page 78
Electrical Insulating Mineral Oils: Specifications and Products......Page 90
New Ways of Disruptive Discharge Recognition in Insulation Testing Devices......Page 105
Standardized Testing Procedures and Developments in Partial Discharge Measurement......Page 118
Long-Term Endurance Determinations Using Traditional Accelerated Aging in Combination with Oxidative Stability Testing Resorting to Isothermal DSC Measurements of Oxidation Induction and Maximum Times......Page 142
Comparative Tracking Index of Flame-Retardant Nylon and PBT......Page 156
Modern, Low Fire Hazard, Thin Wall Insulated Wire?A Complex Balance of Properties......Page 165
Fire Testing of Electrical Materials......Page 173
Author Index......Page 211
Subject Index......Page 212
