IS 14793: Code of Practice for Installation, Maintenance and Observation of the Instruments for Vibration Studies Other Than Earthquakes PDF
Preview IS 14793: Code of Practice for Installation, Maintenance and Observation of the Instruments for Vibration Studies Other Than Earthquakes
इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 14793 (2000): Code of Practice for Installation, Maintenance and Observation of the Instruments for Vibration Studies Other Than Earthquakes [WRD 16: Hydraulic Structures Instrumentation] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 14793 : 2000 Indian Standard CODE FO ECITCARP ROF ,NOITALLAT~SNI ECNANETNIAM AND NOITAVRESBO FO EHT STNEMURTSNI ROF NOITARBIV SEIDUTS OTHER NAHT SEKAUQHTRAE ICS 17.160;93.160 0 BIS2000 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 May 2000 Price Group 4 ciluardyH serutcurtS noitatnemurtsnI lanoitceS ,eettimmoC WRD 16 FOREWORD sihT naidnI Standard~was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard dezilanif yb eht ciluardyH serutcurtS noitatnemurtsnI lanoitceS eettimmoC had neeb devorppa yb eht retaW secruoseR noisiviD .licnuoC ehT snoitarbiv yam eb derusaem as ,tnemecalpsid yticolev ro noitarelecca htiw eht pleh fo tnemecalpsid ,seguag yticolev spu-kcip and sretemorelecca .ylevitcepser tnemecalpsiD stnemerusaem eriuqer a elbats ecnerefer erutcurts esolc ot eht gnitarbiv erutcurts and ti yam eb ynam a semit elbacitcarpmi ot evah eno yllaicepse rof ciluardyh .serutcurts yticoleV spu-kcip reffus morf roop esnopser ot hgih ycneuqerf snoitarbiv and era yklub rof niatrec .snoitacilppa ehT sretemorelecca ecneh era eht tsom .derreferp yehT era nevorp ni tcepser fo ,ytilitasrev ,ssendeggur ycarucca and cimanyd .esnopser sretemoreleccA yolpme cirtceleozeip ,stnemele ecrof ecnalab seuqinhcet ro strain eguag desab .stnemele ,eroferehT eht signal srenoitidnoc elbatius rof eht ralucitrap epyt fo sretemorelecca evah ot eb .dedivorp As sdrager data gnidrocer and data sisylana a deziretupmoc signal rezylana htiw tneiciffus disk egarots yticapac yletelpmoc secalper eht reilrae seuqinhcet fo gnidrocer no lennahc-itlum noitatnemurtsni epat sredrocer and gnizylana no a elbanut band pass retlif epyt ycneuqerf .srezylana yrettaB detarepo signal srezylana era nommoc .syad-a-won sihT standard srevoc stnemeriuqer fo eht ,sretemorelecca signal gninoitidnoc and signal gnissecorp tnempiuqe rof eht noitacilppa fo noitarbiv .seiduts roF eht esoprup fo gnidiced rehtehw a ralucitrap tnemeriuqer sihtfo standard is deilpmoc ,htiw eht lanif ,eulav devresbo ro detaluclac gnisserpxe eht tluser fo tset ro ,sisylana shall eb dednuor ffo ni ecnadrocca htiw SI 2 : 1960 seluR‘ rof gnidnuor ffo laciremun seulav ( revised)‘. ehT rebmun fo tnacifingis secalp deniater ni eht dednuor ffo eulav dluohs eb eht emas as that fo eht deificeps eulav ni this standard. SI 14793 : 2000 India-n Standard CODE FO ECITCARP ROF ,NOITALLATSNI ECNANETNIAM AND NOITAVRESBO FO EHT STNEMURTSNI ROF NOITARBIV SEIDUTS OTHER NAHT SEKAUQHTRAE 1 EPOCS ehT egrahc tuptuo fo retemorelecca is tnednepedni fo elbac htgnel revewoh eht egatlov tuptuo sdneped noitarbiV seiduts era detcudnoc no ciluardyh senihcam nopu eht elbac ,eroferehT.htgnel eht egrahc tuptuo .ziv pumps, ,senibrut-ordyh no livic serutcurts .ziv is derreferp and ecneh eht reifilpma detaicossa htiw dams, edivid walls, ,segdirb rewop ,sesuoh snoitadnuof cirtceleozeip retemorelecca is ylbairavni a egrahc and no rehto parts .ziv ,setag ,skcotsnep ,skcar-hsart .reifilpma retemoreleccA ytivitisnes is yllareneg fo .cte sihT standard sdnemmocer a elitasrev noitanibmoc eht redro fo 10 .sfmfcp fo eht stnemurtsni laitnesse rof noitavresbo fo snoitarbiv arising morf secruos rehto than ekauqhtrae 2.1.2.2 Frequency response that is wolf decudni and snoitarepo fo eht .enihcam tI rehtruf srevoc eht sliated no noitallatsni fo The ycneuqerf esnopser is denifed as eht noitairav fo retemorelecca signal htiw ecnerefer ot ycneuqerf sretemorelecca and erudecorp rof snoitavresbo fo fo a ladiosunis .noitarbiv ehT retemorelecca signal eht noitarbiv htiw eht pleh fo detaicossa noitatnemurtsni is ylriaf tnatsnoc revo eht derised ycneuqerf .egnar gniniatnoc signal renoitidnoc and signal .rossecorp ehT larutan ecnanoser ycneuqerf fo an retemorelecca 2 NOITATNEMURTSNI sdnopserroc htiw larutan ycneuqerf fo eht cimsies mass. Up ot a ycneuqerf fo ht5/1 of eht larutan 2.1 sretemoreleccA ecnanoser ycneuqerf eht noitairav ni retemorelecca signal is yllareneg nihtiw 6 .tnecrep 2.1.1 Constructional Details On eht rewol dne fo eht ycneuqerf murtceps rehtar erehT era rebmun fo seigolonhcet hcihw evah than retemorelecca eht egrahc s’reifilpma ycneuqerf decudorp ,sretemorelecca revewoh eht ygolonhcet esnopser semoceb eht gnitimil .rotcaf ehT esahp gniyolpme cirtceleozeip lairetam spoleved an lacirtcele esnopser is eno fo eht tnacifingis scitsiretcarahc ni egrahc nehw detcejbus ot cimanyd .sesserts nI a tcepser fo tneisnart and kcohs ecnamrofrep fo eht cirtcefeozeip ,retemorelecca a yvaeh mass cimsies( .retemorelecca ehT reppu ycneuqerf noitatimil dluohs mass) dedaolerp yb a tfihs spring, stser no eht kcats eb muminim fo 1000 zH and .dnoyeb fo cirtceleozeip discs. nehW eht ylbmessa is detcejbus ot noitarbiv eht mass strexe a cimanyd ecrof no eht 2.1.2.3 Dynamic range csid hcihw spoleved a elbairav egrahc lanoitroporp ot ecrof and ecneh ot .noitarelecca erugiF 1 shows ehT cimanyd egnar is eht egnar fo sedutingam fo lanoitcurtsnoc sliated fo an .retemorelecca snoitarelecca revo hcihw eht retemorelecca tuptuo is yltcerid lanoitroporp ot eht noitarelecca edutilpma 2.1.2 Performance Characteristics .deilppa ehT rewol edutingam is detimil yb eht ,gnitnuom elbac ,htgnel latnemnorivne snoitidnoc 2.1.2.1 Sensitivity and reifilpma esion .level ehT rehgih edutingam rof A cirtceleozeip retemorelecca is yllacirtcele suogolana suounitnoc snoitarelecca is hcum rehgih than eht ot a roticapac detnuhs yb a hgih ecnatsiser and osla snoitarelecca deretnuocne ni .ecitcarp a egatlov ecruos ro a egrahc .ecruos ehT cirtceleozeip retemorelecca thus has owt seitivitisnes .ziv egrahc 2.1.2.4 Sensitivity of accelerometers to unwanted ytivitisnes and egatlov .ytivitisnes ehT egatlov parameters ytivitisnes is desserpxe as s/m/vm and egrahc The sretemorelecca era osla evitisnes ot ynam rehto ytivitisnes as .s/m/cp esehT owt era detaler ,yb detnawnu lacisyhp sretemarap .ziv ,erutarepmet ,dnuos strain at eht esab ,ecafrus msitengam and esrevsnart egrahC ytivitisnes egatloV = .snoitarelecca esehT seitivitisnes esuac rorre ni ytivitisnes retemoreleccA ecnaticapac + .stnemerusaem ehT elbatpecca seitivitisnes no eseht elbaC ecnaticapac stnuocca era as :swollof IS 14793 : 2000 HOUSING - SPRING SSAM- PIEZOELECTRIC DISCS *OUTPUT TERMINAL ESAB GENERAL PURPOSE ACCELEROMETER REIFiLPMAERP CIMSIES SSAM HOUSING PIEZOELECTRJC DISCS CONNECTORS HIGH SENSITIVITY ACCELEROMETER ~~.GIF LANOITCURTSNOC SLIATED FO RETEMORELECCA erutarepmeT ytivitisnes 1 C“/cp tliub ni yrettab .kcap erugiF 2 shows citamehcs fo a citsuocA ytivitisnes 0.01 cp at 154 db dnuos signal .renoitidnoc erusserp level 2.2.2 Performance Characteristics ecafruS strain ytivitisnes 0.03 niartsorcim/cp citengaM ytivitisnes 10 alseT/cp msitengam 2.2.2.1 AmpliJication esrevsnarT ytivitisnes 4 tnecrep ehT gain fo eht reifilpma is desserpxe ni cp/vm and 2.2 Signal Conditioner htiw 1 cp/vm gain demret as 0 db, reifilpma htiw gain noitairav ehtfo redro fo 100 db is .deriuqer 2.2.1 Configurational Details 2.2.2.2 Frequency response ehT signal renoitidnoc sesirpmoc fo cinortcele stiucric gnisirpmoc fo eht reifilpmaerp as egrahc ,reifilpma ehT ycneuqerf esnopser fo eht signal renoitidnoc is wol pass-high pass sretlif runs, srotargetni and detsujda yb snaem fo eht wol pass and hgih pass kaep ,srotceted .cte esehT stiucric era tliub dnuora 9retlif detaicossa htiw eht .reifilpma ehT wol ycneuqerf lanoitarepo .sreifilpma ehT ycneuqerf esnopser and tuc ffo at mitmin& 0.2 zH and hgih ycneuqerf ffo-tuc gains fo ,reifilpma eciohc fo ,noitarelecca yticolev at mum$im 1 000 zH ro dnoyeb is deriuqer rof eht and tnemecalpsid era hctiws .elbatceles langiS .snoitacilppa ehT ret!if ll,or ,ffo ehtfo redro fo muminim renoitidnoc is dedivorp htiw retem noitacidni rof RMS, 12 evatco/bd is deriuqer rof tneiciffus noitcej_er fo kaep seulav and derewop~si hguorht enil ylppus ro detnawnu .seicneuqerf 2 TRANSDUCER SENSITIVITY S - SPRING M - MASS P - PIEZOELECTRIC ELEMENT B _ BASE FIG. 2 PIEZOELECTRAICCC ELEROMETAENRD SIGNALC ONDITIONER 2.2.2.3 Integration nonemonehp dluow eb modnar ni erutan ot assess, its tnemerusaem sdeen ot eb deirrac tuo and -erusaem ehT tuptuo fo reifilpmaerp gnidnopserroc ot tnem data desylana no .enil ehT reilrae noitarbiv noitarelecca is detargetni ot ecudorp tuptuo gnirusaem tnempiuqe deniatnoc an cinortcele elbanut gnidnopserroc ot yticolev hcihw nehw detargetni ni band pass retlif and ycneuqerf murtceps pirts trahc nrut secudorp tuptuo gnidnopserroc ot .tnemecalpsid redrocer detcennoc ot eht retemorelecca and eht signal esehT srotargetni ,era ni ,tcaf a riap 02-fo evatco/bd .renoitidnoc ehT signal renoitidnoc htiw retem -acidni ffo-tuc wol pass sretlif os that yeht ecudorp stuptuo noit llits sliaverp gniwo ot ytilibatius rof enituor yltcaxe gnidnopserroc ot yticolev and .tnemecalpsid gnirotinom .snoitacilppa ,revewoH eht cinortcele band esehT sretlif era tliub dnuora lanoitarepo reifilpma bass retlif and ycneuqerf murtceps redrocer evah won as evitca retlif rof doog .seicarucca neeb decalper yb desiretupmoc signal rossecorp 2.2.2.4 .tnempiuqe sihT standard setarobale ylno eht signal Meter indication ,rossecorp gnieb tnaveler .yadot ehT signal renoitidnoc dluohs eb dedivorp htiw lenap retem noitacidni fo eht noitarbiv sretemarap 2.3.2 Configurational Details rof enil-no gnirotinom and dluow osla eb lufpleh ehT signal rossecorp is an retupmocorcim desab rof gnittes up fo stnemurtsni rof stnemirepxe gnivlovni .tnempiuqe tI yllaitnesse stsisnoc fo golana tupni .srezylana ehT retem noitacidni is htob RMS and kaep ,noitces CPU, TRC ,yalpsid yppolf sevird and tuptuo eulav .elbatceles ehT tserc rotcaf rof RMS rotceted noitces syek~dna ot mrofrep suoirav snoitcnuf rednu dluohs eb less than 3 and eht emit tnatsnoc rof eht rossecorporcim .lortnoc ehT retupmocorcim htiw eht RMS as llew as kaep rotceted dluohs eb ni eht egnar pleh fo derots semmargorp and lanoitcnuf syek slortnoc fo I ot 10 sdnoces : eht noitarepo fo eht tnempiuqe sediseb gnitcudnoc 2.2.2.5 eht signal .gnissecorp A lennahc-itlum inputs owt ro Dynamic range ruof lennahc snoisrev htiw yalpsid~elpitlum is deriuqer ehT reifilpma gain dluohs eb hctiws ,elbatceles hcae rof eht .noitacilppa erugiF 3 shows citamehcs fo a gnittes gnidnopserroc ot noitanibmoc fo egnar and signal .rossecorp .ytivitisnes ehT cimanyd egnar dluow eb tsom detceffa yb esion level at eht wol dne rof eht mumixam .ytivitisnes ehT redrocer dluohs evah a retlif rof noitallecnac A cimanyd egnar fo eht redro fo muminim 50 Bd dluow fo lacirtcele esion hcihw is nommoc in most rewop eb .deriuqer plants and at blasting .setis ehT redrocer dluohs evah 232-SR trop rof data .refsnart 2.3 langiS rossecorP 2.3.3 Performance Characteristics 1.3.2 Evolution 2.3.3.1 Analog input characteristics ehT aim fo noitarbiv stnemerusaem dluohs eb ot assess kaep ro RMS eulav eht~fo noitarbiv sretemarap and A lennahc-itlum owt( ro ruof ,)slennahc tcerid delpuoc eht ycneuqerf at hcihw yeht .rucco ecniS eht noitarbiv inputs rof suoenatlumis data noitisiuqca is .deriuqer 3 INPUT INTERFACE FOR PLomR PRINTER 6 DISK DRIVES FRONT PANEL CONTROLS 6 FIG. 3 SCHEMATICO F SIGNALP RWESSOR ehT inputs era tcerid delpuoc os that eht tsewol dluohs eb derots no yppolf drah/setteksid disk and ycneuqerf ni eht derusaem snoitarbiv ton eb .detimil dluohs eb detneserp no a rettolp ro .retnirp ehT tupni ecnadepmi fo eht redro fo agem smho ro 3 STNIOP FO NOITARBIV STNEMERUSAEM retaerg and ycneuqerf esnopser dnoyeb 1 000 zH is deriuqer rof eht .snoitacilppa ehT tupni noitces sdeen ehT noitarbiv stnemerusaem era ton syawla elbissop ot niatnoc an antialiasing retlif htiw ytilicaf rof noitceles no eht tsom tnenitrep parts .ziv rennur sedhb ro tekciw fo tuc ffo ycneuqerf htiw .syek setag fo a ,enibrut-ordyh sgniraeb ni gnitator strap- ro reppalf fo a ,evlav .cte ,eroferehT gniraeb ,gnisuoh 2.3.3.2 Analysis functions evlav ,ydob ,cte era deredisnoc tnemerusaem .stniop ehT gniwollof sisylana snoitcnuf era netfo deriuqer roF tnemerusaem fo etag snoitarbiv and kcotsnep ni noitarbiv assessment .krow ,snoitarbiv eht sretemorelecca era dellatsni yltcerid no meht rof ,elpmaxe no a yllartnec decalp redrig fo 4 sedutilpmA and skaep ni emit .niamod eht .etag b) suoenatnatsnI and egareva ycneuqerf ,murtceps roF snoitarbiv tnemerusaem no ,segdirb egdirb ,sreip ssorc ,murtceps ,ecnerehoc refsnart ,noitcnuf rewop ,sesuoh edivid walls, ,cte eht stniop detceles rewop lartceps .ytisned era yllareneg at eht ertnec fo eht walls, ertnec fo ,sredrig cl Orbits, tsiuqyn diagrams, ytilibaborp ytisned detroppusnu ,sdne ,cte sseldrager fo esnopser fo eht .snoitcnuf ,noitalerroc-otua ,noitalerroc-ssorc erutcurts ot cidoirep ro modnar .ilumits ,revewoH an emit .gnigareva etamixorppa etamitse fo eht esnopser fo eht erutcurts spleh ni gnidiced eht stniop fo .tnemerusaem 4 citemhtirA and suluclac .snoitcnuf 4 NOITALLATSNI SDOHTEM 2.3.3.3 Other processing facilities a> gnithgieW snoitcnuf rof ycneuqerf .murtceps 4.1 Mounting Methods for Accelerometers b) tneisnarT erutpac and egarots htiw teserp 4.1.1 Adhesive Mounting .syaled ehT tselpmis dohtem fo retemorelecca gnitnuom is cl noitceleS fo ycneuqerf egnar and edutilpma yb gnikcits ti ot eht tcejbo htiw eht pleh fo elbuod .egnar dedis evisehda disk ro seeb .xaw euD ot gninetfos fo eht evisehda eht tcatnoc retemoreleccafo htiw 4 yalpsiD gnittamrof htiw ,srekram ,srosruc txet eht tcejbo yam eb dehcated and osla eht evisehda ,gnitide .cte dohtem fo gnitnuom sdeen ,htooms ,naelc eerf-lio )e Manual lortnoc yb draobyek and disk data ehtfo-ecafrus tcejbo hcihw yam ton syawla eb .elbaliava .gnissecorp 4.1.2 Mounting Threads 2.3.3.4 Storage dna presentation of results ehT tsomeruces gnitnuom is elbissop yb gnidaerht ehT stluser fo gnissecorp elbaliava no TRC yalpsid eht retemorelecca ot eht tset .tcejbo ehT retemorelecca 4 s1 39741 : 0002 srerutcafunam syawla edivorp meht htiw a dedaerht 4.1.3 Water-Proofing of a Mounting eloh at eht esab and seirossecca hcus as gnitnuom nI esac eht tniop detceles is retawrednu ro is ylekil studs ro gnitnuom stengam htiw gnihctam dedaerht ot eb detcejbus ot splashes fo ,retaw eht retemorelecca snoisurtorp at eht .pot roF snoitallatsni no cillatem gnitnuom sdeen ot eb edam foorpretaw htiw a tcejbo gnitnuom htiw eht pleh fo stengam dluow foorpretaw gnisuoh otno ,ti hguorht hcihw eht .eciffus ehT snoitarbiv ni owt ,X( )Y ro eerht snoitcerid gnitcennoc selbac era nekat .tuo erugiF 5 shows a ,X( Y. )Z at tniop era ot eb derusaem rehtie htiw a dednemmocer tnemegnarra rof eht .esoprup eerht lanoitcerid retemorelecca ro yb gnidaerht eerht lanoitceridinu sretemorelecca no a dlim leets ebuc 4.2 Equipment Locations and Cable Layouts dedlew ot eht .trap ehT signal ,reifilpma/renoitidnoc signal ,rossecorp roF stnemerusaem no etercnoc parts a dlim leets eceip retnirp/rettolp dluohs eb tpek ni an desolcne edahs htiw dedaerht eloh is detuorg otni eht etercnoc htiw gnivah mains rewop ,snoitcennoc morf hcihw selbac eht pleh fo noitadnuof stlob and eht sretemorelecca dluohs eb laid up ot eht tnemerusaem .tniop ehT era detnuom yb snaem fo studs. erugiF 4 shows gniyal tuo elbac syalp an tnatropmi trap ni eht gnitnuom sdohtem rof .sretemorelecca retemorelecca sgnitnuom as elbac whips etubirtnoc STUD MOUNTING ISOLATED STUD MOUNTING THIN LAYER OF BEES WAX MOUNTING WITH WAX ELBUOD DEDI8 ADHESIVED ISC MOUf4TlNGwmCADHE8lVE DISC MAGNET MOUNTING CLAMPING ACCELEROMETER CABLE TO MINIMISE NOISE .GIF 4 METHODS OF ACCELEROMETER INSTALLATION
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