EN 60672-1:1995
(Main)Ceramic and glass insulating materials - Part 1: Definitions and classification
Ceramic and glass insulating materials - Part 1: Definitions and classification
Gives definitions and classification for ceramic, glass, and glass-ceramic materials to be used for electrical insulation purposes.
Keramik- und Glas-Isolierstoffe - Teil 1: Begriffe und Gruppeneinteilung
Matériaux isolants à base de céramique ou de verre - Partie 1: Définitions et classification
Donne les définitions et la classification pour des matériaux isolants à base de céramique, de verre ou de verre céramique utilisés à des fins d'isolement électrique.
Ceramic and glass insulating materials - Part 1: Definitions and classification (IEC 60672-1:1995)
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ceramic and glass insulating materials - Part 1: Definitions and classification (IEC 60672-1:1995)Keramik- und Glas-Isolierstoffe -- Teil 1: Begriffe und GruppeneinteilungMatériaux isolants à base de céramique ou de verre -- Partie 1: Définitions et classificationCeramic and glass insulating materials -- Part 1: Definitions and classification29.035.30Ceramic and glass insulating materialsICS:Ta slovenski standard je istoveten z:EN 60672-1:1995SIST EN 60672-1:1998en01-junij-1998SIST EN 60672-1:1998SLOVENSKI
STANDARD
SIST EN 60672-1:1998
SIST EN 60672-1:1998
SIST EN 60672-1:1998
SIST EN 60672-1:1998
SIST EN 60672-1:1998
Ceramic and glass insulating materials – Part 1:
Definitions and classification
For price, see current catalogue IEC 1995 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission,
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Web: www.iec.ch INTERNATIONAL STANDARD IEC60672-1 Second edition1995-07 N Commission Electrotechnique InternationaleInternational Electrotechnical CommissionPRICE CODE SIST EN 60672-1:1998
672-1 ©IEC: 1995- 3 -CONTENTSPageFOREWORD 5Clause1 Scope2 Normative references 93Definitions 94Classification of ceramics, glasses, glass-ceramics and glass-bondedmica materials 13Tables 15SIST EN 60672-1:1998
672-1 © IEC: 1995-5-INTERNATIONAL ELECTROTECHNICAL COMMISSIONCERAMIC AND GLASSINSULATING MATERIALS -Part 1: Definitions and classificationFOREWORD1)The IEC (International Electrotechnical Commission) is a worldwide organization for standardizationcomprising all national electrotechnical committees (IEC National Committees). The object of the IEC is topromote international cooperation on all questions concerning standardization in the electrical andelectronic fields. To this end and in addition to other activities, the IEC publishes International Standards.Their preparation is entrusted to technical committees; any IEC National Committee interested inthe subject dealt with may participate in this preparatory work. International, governmental andnon-governmental organizations liaising with the IEC also participate in this preparation. The IECcollaborates closely with the International Organization for Standardization (ISO) in accordance withconditions determined by agreement between the two organizations.2)The formal decisions or agreements of the IEC on technical matters, prepared by technical committees onwhich all the National Committees having a special interest therein are represented, express, as nearly aspossible, an international consensus of opinion on the subjects dealt with.3)They have the form of recommendations for international use published in the form of standards, technicalreports or guides and they are accepted by the National Committees in that sense.4)In order to promote international unification, IEC National Committees undertake to apply IEC InternationalStandards transparently to the maximum extent possible in their national and regional standards. Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.International Standard IEC 672-1 has been prepared by sub-committee 15C: Specifications,of technical committee 15: Insulating materials.This second edition cancels and replaces the first edition IEC 672-1 (1980) andconstitutes a technical revision. The intention has been to improve the instruction to theuser by defining more clearly the types of material that fall into the individual classes ofthe classification as an aid to their effective selection and use.The class of ceramic insulating materials that has been deleted from the first edition isClass C 830, zirconia ceramics, for the reason that there are no known applications wherezirconia, with its inferior properties to those of alumina, would be used as an insulator.Additional classes of ceramic and glass materials which are in common use for electricalinsulation but which were excluded from the previous edition have been incorporated,specifically:C 140Lithia porcelainsC 430Lime-based porcelainsC 440Zircon porcelainsC 910Aluminium nitridesC 920Boron nitridesC 930Reaction bonded silicon nitrideC 935Dense silicon nitridesSIST EN 60672-1:1998
672-1 © IEC: 1995- 7 -GC 110GC 120GM 110GM 120Glass-ceramics, bulk typeGlass-ceramics, sintered typeGlass-bonded mica, natural mica and glass fritGlass-bonded mica, glass-ceramic typeG795High-silica glass, > 95 % to 99 % SiO2G799High-silica glass, > 99 % SiO2There has been some rationalization of the class numbering for borosilicate glasses:-the former G 200 and
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