DRAFT STANDARD IN WIDE CIRCULATION DOCUMENT DESPATCH ADVICE Ref: ME 28/T-72 Date: 10-11-2015 Mechanical Vibration and Shock Sectional Committee, MED 28 TO: a) The interested members of Mechanical Engineering Division Council, MEDC b) All members of Mechanical Vibration and Shock Sectional Committee, MED 28 c) All others interested Dear Sir(s), Please find enclosed the following documents: Doc. No. Doc: MED 28 (1468)c TITLE Draft Indian Standard-Me hani al Vi ration Rotor Balan ing Part 13 Criteria and Safeguards for In-Situ Balancing for Large and Medium Rotors(Adoption of ISO 21940-13:2012) Kindly examine the Draft Standard and forward your views stating any difficulties which you are likely to experience in your business or profession, if this is finally adopted. Last date for receipt of comments: 15-01-2016. Comments, if any, may please be made in the format as given overleaf and e-mailed to the undersigned at the above address. 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. The document is also hosted on BIS website www.bis.org.in. Thanking you, Yours faithfully Encl: As above (T.V Singh) Sc F & Head (MED) med@bis.org.in A K Mohindroo Member Secretary, MED 28 Note : You may ask for a hard copy of ISO standard, if required, on the given E-mail id.
य पक पर च लन म म नक मस द रल ख र षण स ञ पन स द भ ददन क एम.ई.ड.28/ट 72 10 11 2015 य र क क पन एव श क क ववषय सममत, एमईड 28 र ष त : 1 य र क इ ज त यर ग ष भ ग पर द क सभ सद य यय वष वपव 2 य र क क प ए श क क ष य सम त, ए वईवड व28 क सभ सद य 3 अ य च न ह दय, त म न र न स ह : र न स य ववषय र न ए वईवड व28 (1468)स भ य क स द - य र क क प - ट स - भ ग 13 - बड औ य ट क म ए स क द ड औ स ष उप य (अमभरहण आईएसओ 21940-13: 2012 क पय इस स द क अ क क औ अप स त य यह ब ह ए भ क अ : य द य स श न क चप रक मश ह य इ प अ क आपक य स य अ क ब य क ईय आ सक ह स त य भ क अज त 15 01 2016 य द क ई स त ह क पय अग प प दय प अन ह ष क क उप म न प प भ द य द क ई स त र हक ह ह अ स त क भ स बन ट ह ई उप र न क य अ त चप दय य ग य द क ई स त क क रक त क ह ई ष य सम त क अ यष क प शश स अ उ क इ छ प आग क क यश हक क म ए ष य सम त क भ क ब द र न क अ त चप द दय एग यह र न ब वआईवएस क बस इट www@bis.org.in प भ उप न ह न य द, भ दकय, यटकव व मस ह ञ व `एफ ए र न यए वईवड रत : उप म न य द - य द आ यक ह, दए गए ई- आईड प आप आईएसओ क क रत क म ए प छ सक ह
Doc: MED 28(1468)c FOR BIS USE ONLY DRAFT FOR COMMENTS Draft Indian Standard MECHANICAL VIBRATION ROTOR BALANCING Part 13 Criteria and Safeguards For In-Situ Balancing For Large and Medium Rotors ICS 21.120.40 Not to be reproduced without the permission of BIS Last date for receipt of or used as a STANDARD comments is: 15/01/2016 NATIONAL FOREWORD (Adoption clause to be added later on). The Indian Standard supersedes IS/ISO 20806:2004 Mechanical Vibration Criteria safeguards for the in-situ balancing of medium and large rotors. Under the general title Mechanical Vibration Rotor Balancing standard is in ten parts. Other parts are as follows: Part 1: Introduction Part 2: Vocabulary Part 11: Procedures and tolerances for rotors with rigid behaviour Part 12: Procedures and tolerances for rotors with flexible behaviour Part 14: Procedures for assessing balance errors Part 21: Description and evaluation of balancing machines Part 23: Enclosures and other protective measures for balancing machines Part 31: Susceptibility and sensitivity of machines to unbalance Part 32: Shaft and fitment key convention
Doc: MED 28(1468)c The text of ISO Standard is to be 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 the 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 edition indicated: International Standard Corresponding Indian Standard Degree of Equivalence ISO 1925:2001 Mechanical vibration Balancing Vocabulary IS/ISO 1925:2001 Mechanical vibration Balancing Vocabulary (Superseding IS 13274:1992/ISO 1925:1990) ISO 1940-1:2003 Mechanical vibration Balance quality requirements for rotors in a constant (rigid) state Part 1 Specifications and verification of balance tolerances ISO 2954: 1975 Mechanical vibration of rotating and reciprocating machinery -- Requirements for instruments for measuring vibration severity ISO 11342: 1998 Mechanical vibration Method and criteria for the mechanical balancing of flexible rotors IS/ISO 1940-1:2003 Mechanical vibration Balance quality requirements for rotors in a constant (rigid) state Part 1 Specifications and verification of balance tolerances IS 11726:1985/ISO 2954:1975 Requirements for instruments for measuring vibration severity of rotating and reciprocating machines IS/ISO 11342:1998 Mechanical vibration Method and criteria for the mechanical balancing of flexible rotors (Superseding IS 14918:2001)
ISO 7919-1:1996 Mechanical vibration of non-reciprocating machines Measurements on rotating shafts and evaluation criteria -- Part 1:General guidelines IS 14773(Pt 1):2000 /ISO 7919-1:1996 Mechanical vibration of non-reciprocating machines Measurements on rotating shafts and evaluation Part 1 General guidelines (superseding IS/ISO 7919-1:1986) Doc: MED 28(1468)c ISO 7919-2: 2001 Mechanical machine by measurements on rotating shafts: Part 2 Land based steam turbines and generators in excess of 50 MW with normal operating speeds of 1500 r/min, 1800 r/min, 3000 r/min and 3600 r/min ISO 7919-3 : 2009 Mechanical vibration by measurements on rotation shafts part 3- Coupled industrial machines ISO 7919-4:2009 Mechanical vibration by measurements on rotation shafts part -4 Gas turbine sets with fluid film bearing IS/ISO 7919-2:2001 Mechanical machine by measurements on rotating shafts: Part 2 Land based steam turbines and generators in excess of 50 MW with normal operating speeds of 1500 r/min, 3000 r/min and 3600 r/min (Superseding IS 14773(P-2):2000/ISO 7919-2:1996) IS/ISO 7919-3:2009 Mechanical vibration by measurements on rotation shafts part 3- Coupled industrial machines IS/ISO 7919-4:2009 Mechanical vibration by measurements on rotation shafts part -4 Gas turbine sets with fluid film bearing ISO 7919-5:2005 Mechanical machine by measurements on rotating shafts: Part 5 Machine sets in hydraulic power generating and pumping plants IS/ISO 7919-5:2005 Mechanical machine by measurements on rotating shafts: Part 5 Machine sets in hydraulic power generating and pumping plants (Superseding IS 14773(P- 5):2001/ISO 7919-5:1997)
Doc: MED 28(1468)c ISO 10816-1:1995 Mechanical measurements on non rotating parts: Part 1 General guidelines IS 14817(Pt 1):2000 /ISO 10816-1:1995 Mechanical machine vibration by measurements on non rotating parts: Part 1 General guidelines (Superseding IS 11724:1985/ISO 2372:1974) ISO10816-2:2001 Mechanical vibration- Evaluation of parts: Part 2 Land based steam turbines and generators in excess of 50 MW with normal operating speeds of 1500 r/min, 1800 r/min, 3000 r/min and 3600 r/min ISO 10816-3: 1998 Mechanical Parts Part 3 Industrial machines with nominal power above 15 kw and Nominal speed between 120 r/min and 15000 r/min when measured in situ ISO 10816-4:1998 Mechanical measurements on Non-rotating Parts Part 4 Gas turbines driven sets excluding aircraft derivatives IS/ISO10816-2:2001 Mechanical vibration by measurements on nonrotating parts: Part 2 Land based steam turbines and generators in excess of 50 MW with normal operating speeds of 1500 r/min, 1800 r/min, 3000 r/min and 3600 r/min.(superseding IS 14817(P- 2):2004/ISO 10816-2:1996) IS 14817(Part 3): 2004/ISO 10816-3: 1998 Mechanical vibration Evaluation of Parts Part 3 Industrial machines with nominal power above 15 kw and Nominal speed between 120 r/min and 15000 r/min when measured in situ IS 14817(Part 4):2004 /ISO 10816-4:1998 Mechanical vibration Evaluation of machine vibration by measurements on Non-rotating Parts Part 4 Gas turbines driven sets excluding aircraft derivatives
ISO 10816-5:2000 Mechanical Parts Part 5 Machine sets in hydraulic power generating and Pumping plants IS 14817(Part 5):2004 /ISO 10816-5:2000 Mechanical vibration Evaluation of machine vibration by Parts Part 5 Machine sets in hydraulic power generating and Pumping plants Doc: MED 28(1468)c ISO 10816-6:1995 Mechanical Parts Part 6 Reciprocating machines with power rating above 100 kw IS 14817(Part 6):2004/ISO 10816-6:1995 Mechanical vibration Evaluation of Parts Part 6 Reciprocating machines with power rating above 100 kw 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: International Standard ISO 10817-1 ISO 10816-7:2009 ISO 10816-8:2014 ISO 10816-21:2015 Title Rotating shaft vibration measuring systems Part 1: Relative and absolute sensing of radial vibration Mechanical vibration -- Evaluation of parts -- Part 7: Rotodynamic pumps for industrial applications, including measurements on rotating shafts Mechanical vibration -- Evaluation of parts -- Part 8: Reciprocating compressor systems Mechanical vibration -- Evaluation of parts -- Part 21: Horizontal axis wind turbines with gearbox 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 or analysis shall be rounded off in accordance with IS 2:1960 Rules for rounding off numerical values (revised).
Doc: MED 28(1468)c The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. FOR COMPLETE TEXT PLEASE REFER TO ISO 21940-13:2012. IF ANY ONE REQUIRES A HARD COPY OF THE SAME PLEASE CONTACT THE UNDER SIGNED. MANUJ MAURYA Sc 'B', MED, ROOM NO: 203 MANAK BHAVAN 9 BAHADURSHAH ZAFAR MARG NEW DELHI 110002 TELEFAX 011-23232509 EMAIL: med@bis.org.in
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