council direct novemb approxim law member state relat electr energi meter eec council european commun regard treati establish european econom commun articl thereof regard propos commiss regard opinion european parliament regard opinion econom social committe member state construct method test electr energi meter subject strict regul differ member state hinder trade meter approxim regul council direct eec juli approxim law member state relat common provis measur instrument method metrolog control amend direct eec laid procedur eec type approv eec initi verif accord direct technic requir design function electr energi meter adopt direct articl direct appli direct connect induct meter singl multipl tariff design measur activ energi singl phase polyphas current hz frequenc articl electr energi meter eec mark sign annex direct subject eec type approv submit eec initi verif articl member state prevent prohibit restrict place market entri servic electr energi meter meter bear eec type approv sign eec initi verif mark member state maximum permiss error smaller set direct initi verif continu maximum permiss error period half year notif direct light experi gain period derog result obtain intern bodi measur end half year period procedur set articl direct eec articl member state put forc law regul administr provis need order compli direct eighteen month notif forthwith inform commiss thereof member state ensur text provis nation law adopt field cover direct commun commiss articl direct address member state brussel novemb council presid westerterp oj oj oj oj annex chapter definit definit term annex influenc quantiti factor quantiti factor measur quantiti effect modifi result measur variat error result influenc quantiti differ error meter singl influenc quantiti assum valu success refer influenc quantiti quantiti basi characterist meter fix basic current ib current accord relev perform meter fix maximum current imax maximum current meter satisfi requir direct distort factor ratio effect harmon content obtain subtract fundament factor sinusoid altern quantiti effect sinusoid quantiti distort factor express percentag basic speed nomin speed rotat rotor express revolut minut meter refer condit carri basic current uniti power factor basic torqu nomin torqu rotor maintain stationari meter refer condit carri basic current uniti power factor type express defin meter singl multipl tariff manufactur manufactur correspond similar metrolog properti uniform construct part determin qualiti number amper turn current wind basic current number turn volt voltag wind refer voltag ratio maximum current basic current type includ basic current refer voltag valu remark meter design manufactur group letter number combin letter number type design type repres sampl meter intend type approv test characterist basic current refer voltag chosen metrolog servic concern appear tabl propos manufactur claus case special product type product number turn wind basic current differ meter repres type nearest product immedi chosen order number turn reason number turn volt voltag wind differ sampl meter repres type ratio highest lowest basic speed rotat rotor meter type exce chapter ii technic specif mechan specif gener meter design construct avoid introduc danger normal normal condit ensur person safeti electr shock person safeti effect excess temperatur safeti spread fire part subject corros normal work condit effect protect protect coat liabl damag ordinari handl injuri affect exposur air ordinari condit servic meter adequ mechan strength withstand elev temperatur occur normal oper condit compon reliabl fasten secur loosen transport normal electr connect prevent open circuit includ overload condit direct construct meter minim risk short circuit insul live part access conduct part due accident loosen unscrew wind screw case meter case virtual dustproof capabl seal intern part meter access seal broken cover remov tool coin similar devic case construct arrang perman deform prevent meter oper satisfactorili meter intend connect main voltag relat earth case access metal part provid protect earth termin meter intend connect main refer voltag relat earth case wholli partli made metal suitabl provis made connect case earth window meter cover transpar includ window permit read regist observ rotor movement window cover plate transpar materi imposs remov break seal termin termin block termin group termin block suffici mechan strength enabl rigid conductor cabl fix disconnect voltag termin current input termin difficulti connect conductor termin made ensur suffici durabl contact risk loosen excess heat hole extens termin hole insul materi larg easi insert insul conductor note materi termin plate made satisfi test laid iso recommend section temperatur ºc termin cover termin meter cover termin cover seal independ meter cover meter mount board reach termin break seal termin cover termin cover cover termin plate screw hold conductor termin suffici length connect conductor insul regist count mechan regist drum pointer type unit regist kilowatt hour drum type regist unit mark adjac set drum gt pic file quot quot gt dial pointer type regist drum drum type regist tenth read unit edg colour colour addit dial continu rotat drum indic lowest valu includ scale equal divis arrang give similar accuraci read regist record minimum hour energi maximum current refer voltag uniti power factor indic appear regist indel easili legibl direct rotat rotor mark rotor edg rotor nearest observ view meter front move left direct rotat mark visibl indel arrow edg edg upper surfac disc carri main mark width circumfer disc facilit count number revolut disc carri mark permit stroboscop test made mark imped main mark emploi photoelectr count number revolut disc electr specif power loss voltag circuit loss voltag circuit refer voltag refer frequenc refer temperatur exce va singl phase meter va polyphas meter current circuit meter basic current lower appar power circuit basic current refer frequenc refer temperatur exce va higher basic current exce va heat usual condit wind insul reach temperatur liabl advers affect function meter gt pic file quot quot gt addit test meter show damag satisfi ac voltag test claus temperatur wind determin resist variat method iec public quot intern specif copper type anneal quot measur circuit resist meter feed connect cm long cross section current densiti mm measur resist variat made termin box connect dielectr properti meter incorpor auxiliari devic retain adequ dielectr qualiti normal condit take account atmospher influenc voltag circuit subject normal condit meter withstand damag dielectr prove test detail claus test carri complet meter cover termin cover posit screw conductor screw maximum applic conductor fit termin test carri meter procedur accord iec public quot high voltag test quot note termin arrang meter differ meter origin subject type approv dielectr properti test carri termin arrang purpos test term quot earth quot mean meter case made metal earth case flat conduct surfac meter case part made insul materi earth conduct foil connect flat conduct surfac meter termin cover distanc approxim cm left foil hole conductor termin case impuls voltag test circuit test connect frame earth impuls test carri voltag test test flashov disrupt discharg punctur occur test chang percentag error meter greater uncertainti measur section express quot termin quot mean set termin current circuit voltag circuit auxiliari circuit refer voltag gener condit dielectr qualiti test test made normal condit test qualiti insul impair dust abnorm humid normal condit insul test ambient temperatur ºc ºc rel humid gt pic file quot quot gt impuls voltag test impuls voltag test intend determin capabl meter stand damag short time overvoltag high valu note aim test accord claus essenti ensur hand qualiti insul voltag wind turn layer hand insul circuit meter normal servic connect conductor phase main overvoltag occur text provid claus intend provid verif behaviour insul electr circuit meter rel earth insul repres essenti safeti factor person event overvoltag main energi gener test accord relev requir iec public wave form impuls standard peak kv test impuls voltag appli ten time polar test insul voltag circuit insul circuit test made independ circuit assembl circuit insul circuit meter normal termin circuit subject impuls voltag connect earth normal voltag current circuit drive element connect test made end voltag circuit connect earth impuls voltag appli termin current circuit earth voltag circuit meter common point point connect earth impuls voltag success appli free end current circuit connect earth auxiliari circuit intend connect directli main refer voltag subject impuls voltag test condit voltag circuit auxiliari circuit test test insul electr circuit rel earth termin meter circuit auxiliari circuit refer voltag greater connect auxiliari circuit refer voltag greater connect earth impuls voltag appli meter circuit earth voltag test voltag test carri accord tabl test voltag substanti sinusoid frequenc hz appli minut power sourc capabl suppli va test tabl circuit submit voltag test connect frame test rel earth tabl auxiliari circuit refer voltag connect earth gt pic file quot quot gt particular shown meter rate plate meter carri rate plate dial regist plate fix insid meter particular indel easili legibl visibl manufactur identif mark trade design type sign certifi eec type approv meter descript number arrang drive element form singl phase wire phase wire symbol conform standard harmon commun level refer voltag basic current maximum current form refer frequenc hz constant meter form wh rev rev kwh serial number meter year manufactur refer temperatur differ ºc meter carri inform place manufactur commerci descript special serial number electr supplier sign conform european standard connect diagram identif number inform inscript prohibit special author connect diagram termin mark meter carri easili identifi connect diagram show correspond connect termin includ auxiliari devic termin conductor connect phase meter phase sequenc meter intend shown connect diagram refer number stamp rate plate meter termin carri mark diagram connect diagram replac refer number nation standard member state meter chapter iii metrolog requir metrolog requir maximum permiss error refer condit claus singl phase meter polyphas meter balanc load exce error tabl polyphas meter singl phase load balanc voltag exce error tabl ii tabl gt pic file quot quot gt tabl ii gt pic file quot quot gt basic current uniti power factor differ error meter singl phase load percentag error polyphas load balanc exce note singl phase load phase meter understood phase neutral voltag wire system neutral phase phase voltag wire system neutral case complet system voltag remain connect meter refer condit save except expressli provid annex test determin error error variat function influenc quantiti carri refer condit meter close meter cover posit case drum type regist fastest turn drum engag visibl measur voltag connect hour test current adjust progress increas decreas valu connect long speed rotat rotor stabil addit polyphas meter order phase correspond direct sequenc shown connect diagram voltag current practic purpos balanc voltag line neutral line differ voltag current conductor differ current phase displac present current phase neutral voltag differ power factor refer valu influenc quantiti tabl iii tabl iii gt pic file quot quot gt effect influenc quantiti variat error determin influenc quantiti condit tabl iv condit set claus observ tabl iv gt pic file quot quot gt gt pic file quot quot gt effect transient heavi overload test circuit virtual induct appli transient overcurr voltag maintain termin meter allow rest long recov initi temperatur hour meter capabl carri current surg obtain capacitor discharg main thyristor control peak equal time maximum current time greater time maximum current ms end test error variat greater basic current uniti power factor variat error due heat maintain refer voltag hour current suppli circuit rate maximum current appli current wind error meter measur immedi put oper suffici short interv permit correct plot curv error variat function time test continu hour event variat note period minut greater variat error due heat measur greater uniti power factor power factor run load condit claus current circuit meter open rotor run free voltag refer voltag rotor turn slightli circumst make complet revolut case drum type regist requir appli drum engag start condit claus current equal basic current uniti power factor pass meter start continu revolv verifi rotor make complet turn case drum type regist requir appli drum engag agreement regist read constant meter ratio number revolut meter rotor indic regist correct margin adjust meter adjust conform present requir margin adjust adjust full load variat rotor speed current equal half maximum current refer voltag frequenc hz uniti power factor adjust light load variat rotor speed basic current hz frequenc refer voltag uniti power factor adjust phase meter capabl adjust variat rotor speed power factor induct current equal half maximum current hz frequenc refer voltag chapter iv eec type approv eec type approv electr energi meter grant accord requir direct eec requir chapter eec type approv procedur eec type approv technic document request eec type approv accompani document draw possibl photograph complet meter detail descript construct meter main compon includ variat draw main compon includ variat base handl fix point cover termin plate cover drive element wind air gap brake element method adjust regist rotor upper lower rotor bear temperatur compens devic overload compens devic induct load adjust light load adjust auxiliari circuit rate plate diagram intern extern connect includ auxiliari circuit show phase sequenc tabl voltag current wind number turn size conductor insul tabl meter constant torqu voltag current valu descript draw show posit intend verif mark seal present meter submit eec type approv request eec type approv accompani present meter repres type claus compet author request submiss addit meter applic relat meter refer paragraph variant thereof materi case multipl tariff devic remot indic anti revers devic consid type arrang termin applic extens previou type approv eec type approv examin meter submit conform technic requir set claus metrolog requir claus order account error method calibr axi abscissa error curv tabl ii plot move curv parallel posit measur point eec type approv test test respect metrolog requir claus carri measur made point singl phase meter polyphas meter balanc load uniti power factor ib multipl ib imax singl phase meter polyphas meter balanc load power factor induct ib multipl ib imax polyphas meter singl phase load ib imax imax uniti power factor ib power factor induct test carri success phase effect influenc quantiti examin point influenc ambient temperatur ib ib imax uniti power factor ib ib imax power factor induct influenc posit voltag frequenc wave form extern magnet induct magnet field accessori mechan load regist point condit set tabl iv influenc invers phase polyphas meter ib ib imax balanc load uniti power factor ib singl phase load uniti power factor test repeat phase addit test carri test transient overload heat start verif margin adjust carri laid claus run load test carri refer voltag test regist carri condit claus durat test suffici read inaccuraci exce eec type approv certif eec type approv certif accompani descript draw diagram identifi type explain function chapter eec initi verif eec initi verif electr energi meter carri accord requir direct eec requir supplement special provis eec initi verif initi verif electr energi meter consist accept test examin conform approv type accept test accept test meter guarante qualiti regard point list claus natur accept test dielectr strength test verif mechan properti meter cover fit run load test start test accuraci test verif constant test prefer carri order detail claus condit accept test test carri meter cover fit mechan properti check regist initi verif take place manufactur workshop test carri cover remov long previous accept practic effect perform meter dielectr properti check meter cover fit dielectr strength test satisfactorili carri test meter suppli electr half hour refer voltag current ib uniti power factor voltag circuit heat advanc check made rotor turn freeli test no carri condit tabl iii tabl tabl gt pic file quot quot gt carri accept test test dielectr strength test voltag test consist appli altern voltag frequenc hz effect kv minut inter connect termin flat metal surfac meter test auxiliari circuit nomin voltag connect flat metal surfac test carri applianc manufactur respons metrolog servic carri check verif carri cover fit test appar good condit case termin plate correct posit dial presenc prescrib particular run load test choic test left metrolog servic meter suppli electr refer voltag uniti power factor current equal ib rotor complet revolut test conduct accord claus start test run load test carri condit set indent claus start test carri meter suppli electr refer voltag uniti power factor current equal ib rotor start revolv run load test carri condit set indent claus start test carri accord claus note test carri polyphas meter phase load accuraci test test no accuraci test carri current valu power factor tabl vi wait wind thermal balanc condit test carri standard condit type approv valu tabl vi give latitud valu set tabl ii tabl vi gt pic file quot quot gt note test meter multipl tariff repeat read tariff tariff adjust electro magnet suppli electr accord specif connect diagram permiss error limit systemat util direct check agreement regist meter constant test verifi ratio number revolut meter rotor read regist correct uncertainti measur properti measur instrument apparatu carri test no applic error measur attribut exce rel uniti power factor power factor induct examin conform approv type natur examin conform approv type order determin metrolog properti meter manufactur present initi verif conform requir direct examin conform approv type carri interv determin compet metrolog author meter chosen random accept test examin consist test chosen direct claus serv determin effect influenc quantiti test conduct refer condit claus measur point claus point verifi case open qualiti surfac protect paint gear ratio natur gear regist qualiti solder weld tight screw absenc file metal dust margin adjust visual inspect note meter approv type manufactur regular product desir frequenc examin conform approv type proport volum product addit procedur carri time seemingli systemat fault discov accept test eec verif mark seal meter successfulli undergon initi verif test stamp eec initi verif mark seal includ eec initi verif mark affix manner ensur imposs gain access intern work part meter break eec initi verif seal