{"title":"Chairman's report NEMA magnet wire technical committee activities","authors":"L. Payette","doi":"10.1109/EEIC.1983.7465044","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465044","url":null,"abstract":"NEMA MW-1000 is a viable document that is continuously upgraded to meet the Magnet Wire Industries needs. This paper will cover the activities of the NEMA Magnet Wire Section during the period of 1982–1983. Part I of MW-1000 has been revised quite extensively, both editorialy and technically. Two new standards have been added to MW-1000 and three more are nearly complete. A number of new test procedures and equipment modification are also being considered and will be discussed. Underwriters Laboratory, American National Standards Institute and related government agencies will also be reviewed.","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131642881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microscopic cross solders on printed wiring board assemblies","authors":"Robert H. Gengler","doi":"10.1109/EEIC.1983.7465086","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465086","url":null,"abstract":"During the 10-III-82 period, the Western Electric Montgomery Works began experiencing microscopic cross solders (microshorts) on numerous data set printed wiring board assemblies (circuit packs). The microshorts were generally observed on fine line circuit packs (.010\" lines and spaces) after the machine soldering operation. Three conveyorized in-line assembly/soldering processes which were involved with the problem are identical, although a higher percentage of the microshorts seemed to be occurring on the circuit packs being soldered on the assembly/soldering line number two.","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"37 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131457374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Meeting VDE & CSA requirements in the manufacture of transformers","authors":"Guy E. Ferrone","doi":"10.1109/EEIC.1983.7465058","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465058","url":null,"abstract":"For many years, Transformer Manufacturing has virtually remained unchanged. Large Scale Linear and Ferroresonant Power Transformers, Medium Scale Filament & Chokes were constructed utilizing the Stick Winding method. This type of manufacturing not only consumed more labor, but in many applications could not be used. Now that Electronics Circuitry combines minature Solid State Components, along with Printed Circuit boards designs and stringent qualification parameters being applied to it, the Stick Wound Transformer is quickly being replaced by molded fabrications.","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121773250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of superheat-resistant enameled wire","authors":"K. Arahara, M. Morita, S. Hirata","doi":"10.1109/EEIC.1983.7465071","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465071","url":null,"abstract":"With a view to developing superheat-resistant enameled wires capable of continuous service at 300°C or higher temperatures we studied the applicability of synthetically obtained borosiloxane resins whose chemical structure suggested excellent heat resistance.1 As a result, a solvent-soluble varnish made up mainly of the borosiloxane resins was obtained, and through use of this varnish two types of superheat-resistant enameled wires have been developed. It has been demonstrated in a series of tests that these wires are by far more heat-resistant than the conventional heat-resistant polyimide wire and are capable of prolonged service at 450°C or higher temepratures.","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121469702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Review of solderable magnet wire insulation","authors":"G. Sollner, Donny R. Disque, D. Barta","doi":"10.1109/EEIC.1983.7465067","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465067","url":null,"abstract":"The history and chemistry of solderable and tinnable insulation systems are reviewed. This study shows the evolution of property improvements with changes in the chemistry. Properties of new proprietary systems are presented.","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123519851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Room temperature stable class 220°C polyimide resin solutions for magnet wire coatings","authors":"W. Martin","doi":"10.1109/EEIC.1983.7465069","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465069","url":null,"abstract":"The purpose of this paper is to present supporting data that a series of room temperature stable polyamic acid solutions developed by The P. D. George Co. meet or exceed the requirements of NEMA's MW-16 and the Federal Specifications J-W-1177A/GEN and JW-1177/15A.","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129920224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Self heating of insulators","authors":"A. Refsum","doi":"10.1109/EEIC.1983.7465022","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465022","url":null,"abstract":"The voltage distribution over the surface of an insulator in humid conditions is determined by the shape of the insulator and the surface resistivity. The latter changes very rapidly with the temperature rise caused by the Joulean heating in the surface layer. In the paper a comparison is made between computed and observed temperature distributions on a cylindrical and on a disc shaped glass insulator. The computation is based on a simple thermal model of the insulator and the known behaviour of the surface resistivity. The results demonstrates the importance of the thermal properties of the insulator in controlling the temperature and the associated voltage distribution.","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126050857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sleeving insulation for use on V.P.I. form wound coils-II","authors":"L. Landry, Herbert Levine","doi":"10.1109/EEIC.1983.7465114","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465114","url":null,"abstract":"During the 1981 E/EIC Conference, Suflex introduced a new product, namely, Acryflex VPI sleeving, which could be used by manufacturers of motors as well as motor re-builders as an alternative to the commonly used manually assembled multiple wall (\"telescoped\") sleeving combinations for form-wound coil lead insulation. This paper will serve to report the results of further testing which has been done on this now patented product.(3)","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126909989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The correct way for dealing with polychlorinated biphenyls","authors":"D. L. Bowers, R. Jones","doi":"10.1109/EEIC.1983.7465065","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465065","url":null,"abstract":"PCBs have been produced since 1929. It is estimated that out of the one million tonnes manufactured nearly half of this is already in the environment.","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"131 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114017764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Monitoring the storage stability of large volumes of vacuum pressure impregnating resins","authors":"J. D. Smith","doi":"10.1109/EEIC.1983.7465051","DOIUrl":"https://doi.org/10.1109/EEIC.1983.7465051","url":null,"abstract":"Catalyzed storage stability tests have been carried out with a series of vacuum pressure impregnation epoxy-anhydride solventless impregnants. The changes in viscosity with storage time were recorded for several of these resins. Replenishment storage tests, in which a 20% addition of fresh material was added every two weeks, were also carried out. The data obtained indicate that under the most severe manufacturing conditions anticipated in \"shop\" usage (i.e., 26°C and 0.25% H2O), the impregnants attain a steady-state viscosity condition after 10 weeks of storage. A theoretical discussion is presented in which empirical parameters are derived for these resins. Theoretical steady-state viscosity values are calculated for some of the impregnants and show good agreement with the experimentally derived ones.","PeriodicalId":148370,"journal":{"name":"1983 EIC 6th Electrical/Electronical Insulation Conference","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114081874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}