DRAFTS IN WIDE CIRCULATION Document Despatch Advice REFERENCE Date ETD 06/ T-88 04-01-2017 TECHNICAL COMMITTEE ETD 06 ---------------------------------------------------------------- ------- -------------------------------------------- ADDRESSED TO: 1. All Members of Electrical Insulators and Accessories Sectional Committee, ETD 06 ; 2. All Members of Electrotechnical Division Council; and 3. All other Interested. Dear Sir(s), Please find enclosed a copy each of the following draft Indian Standards: DOC NO. ETD 06 (11163) TITLE Tests on indoor and outdoor post insulators of ceramic material or glass for systems with nominal voltages greater than 1 000 V Kindly examine the draft standards and forward your views stating any difficulties which you are likely to experience in your business or profession, if these are finally adopted as Indian Standards. Comments, if any, may please be made in the format given overleaf and mailed to the undersigned. Last date for comments: 05-03-2017. In case no comments are received or comments received are of editorial nature, you will kindly permit us to presume your approval for the above document as finalized. However, in case of comments of technical in nature are received then it may be finalized either in consultation with the Chairman, Sectional Committee or referred to the Sectional Committee for further necessary action, if so desired by the Chairman, Sectional Committee. It may kindly be noted that the technical contents of the documents has not been enclosed as these are identical with the corresponding IEC standards. For details, please refer to the corresponding IEC publication as mentioned in the respective National Forewords or kindly contact the undersigned. Thanking you, Yours faithfully (Rajeev Sharma) Sc E & Head (Electrotechnical) Email: eetd@bis.org.in Encl: As above
E व य पक प पक च ल म म द प र ख प र षण द ज ञ पकम द र ष ईट ड द म प ईट ड 06/ ट - 04-01-2017 तपम प दम तत : ईट ड 06 प र षत : 1. ईट ड 06 क सभ सदस य 2. व द य त तकन क व भ ग पर षद क सभ सदस य त 3. र च खन ल अन य सभ नक य मह दय, क प य न नललखखत मस द क एक प र त स लग न ह : प र ख श षषप श षषक श षषक ईट ड 06 (11163) 1000 व ल ट द अध प व ल टत ह त ल म म ट ट एव प ल प पक मदष म पक स ट वव त प प म ए इ ड एव आउटड पक क षण पक द ततय क प य न मस दक क अ ल कन क औ अपन स म तय यह तत त ह ए भ औ क अ तत: य द यह म नक क र प म प रक लशत ह ए त स प अमल क न मऔ आपक व य स य अ क त मऔ य क न य आ सकत ह स म तय भ न क अ तम त ख 05-03-2017. स म तय य द क ई ह त क प य अगल प प दए प र मऔ अ हस त क षर क रपर ललखखत पत प भ दऔ य द क ई स म त प र प त नह ह त अ स म त मऔ क ल भ ष स त र ट ह ई त रप त प रल ख क य त अ त म र प दय एग य द क ई स म त तकन क प रक त क ह ई त व षय सलम त क अध यक षर क प मशष स अ रनक च छ प आग क क यष ह क ललए व षय सलम त क भ न क त द प रल ख क अ त म र प द दय एग क पय न ट क औ क मस दक क तकन क व षय स त स लल ग नत नह कय गय ह यक क य मस द आई. ई. स. म नकक क समर प ह व स त त य क ललए क पय स त च त र य प र क न मऔ र ल लखखत आई. ई. स. प रक शन पढऔ अ अ हस त क षर र त क स पकष क औ न य द, भ द य, ( शम ष) ज ञ नक ई ए प रम ख (व द य त तकन क )
Date Document No. 04-01-2017 ETD 06 (11163) Sl. No. Name of the Organization Clause/ Subclause Paragraph/Figure/ Table Type of Comment (General/Technical/ Editorial) Comments Proposed changes
Electrical Insulators and Accessories Sectional Committee, ETD 06 NATIONAL FOREWORD This Indian Standard which is identical with IEC 60168 Tests on indoor and outdoor post insulators of ceramic material or glass for systems with nominal voltages greater than 1 000 V issued by the International Electrotechnical Commission (IEC) would be adopted by the Bureau of Indian Standards on the recommendations of the Electrical Insulators and Accessories Sectional Committee, ETD 06 and approval of the Electrotechnical Division Council. With the publication of this standard, IS 2544 : 1973 Porcelain post insulators for systems with nominal voltage greater than 1000 Volts shall be withdrawn since the requirements given in this standard have been covered in the superseded standard. The text of IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following: a) Wherever the words International Standard appear, referring to this standard, they should be read as Indian Standard. b) Comma (,) has been used as a decimal marker while in Indian Standards, the Current practice is to use a point (.) as the decimal marker. In this adopted standard, reference appears to certain International Standards for which Indian Standards also exist. The corresponding Indian Standards which are to be substituted in their places are listed below along with their degree of equivalence for the editions indicated: International Standard Corresponding Indian Standard Degree of Equivalence IEC 60050 (471), International Electrotechnical Vocabulary (IEV) Chapter 471: Insulators IEC 60060, High-voltage test techniques Part 1: General definitions and test requirements IEC 60071-1, Insulation co-ordination Part 1: Definitions, principles and rules IEC 60071-2, Insulation co-ordination Part 2: Application guide IEC 60071-3 : 1982, Insulation coordination Part 3: Phase-to-phase insulation co-ordination. Principles, rules and application guide IEC 60273 : 1990, Characteristics of indoor and outdoor post insulators for systems with IS 1885 (Part 54) : 1993 Electrotechnical Vocabulary: Part 54 Insulators IS 2071 (Part 1) : 2016 Highvoltage Test Techniques: Part 1 General Definitions and Test Requirements ( Third Revision IS/IEC 60071 (Part 1) : 2006 Insulation Co-ordination: Part 1 Definitions, Principles and Rules IS/IEC 60071 (Part 2) : 1996 Insulation Co-ordination Part 2 Application Guide IS 2165(Part 2) : 1983 Insulation coordination: Part 2 Phase to phase insulation coordination principles and rules IS 5350 (Part 1 to Part 3) Dimensions of Indoor and Outdoor Porcelain Post Identical IEC 60050 (471) : 1984 IEC 60060-1:1989 IEC 60071-1 : 1993 IEC 60071-2 : 1976 Technically Equivalent Technically Equivalent
Insulators and Post Insulator Units for Systems with Nominal Voltages Greater than 1000 V The technical committee has reviewed the provisions of the following International Standards referred in this adopted standard and has decided that they are acceptable for use in conjunction with this standard. IEC Number IEC 60438 ISO 1459 Title Tests and dimensions for high-voltage d.c. insulators Metallic coatings Protection against corrosion by hot dip galvanizing Guiding principles ISO 1460 ISO 1461 ISO 1463 ISO 2064 Metallic coatings Hot dip galvanized coatings on ferrous metals Gravimetric determination of the mass per unit area Metallic coatings Hot dip galvanized coatings on fabricated ferrous products Requirements Metal and oxide coatings Measurement of coating thickness Microscopical method Metallic and other non-organic coatings Definitions and conventions concerning the measurement of thickness ISO 2178 Non-magnetic coatings on magnetic substrates Measurement of coating thickness Magnetic method Only English language text has been retained while adopting it in this Indian Standard, and as such the page numbers given here are not the same as in the International Standard For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated expressing the result of a test, shall be rounded off in accordance with IS 2 : 1960 Rules for rounding off numerical values (revised). The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.