Kev Lag Luam Kis 6KV-40.5KV: Cov txiaj ntsig sib txawv ntawm Yuguang Electric

Lub 6KV-40.5KV Cov khoom siv kis tau tus mob kev ua lag luam sawv cev rau ib feem tseem ceeb hauv kev tsim kho vaj tse fais fab, qhov twg kev ntseeg siab thiab kev ua tau zoo txiav txim siab txog kev ua haujlwm zoo thoob plaws kev lag luam. Yuguang Electric tau tsim nws tus kheej ua tus thawj coj hauv qhov chaw no, muab cov kev daws teeb meem tshiab uas daws tau cov kev xav tau ntawm cov chaw siv hluav taws xob, cov tuam txhab lag luam, thiab cov neeg ua haujlwm hauv kev tsim kho vaj tse. Los ntawm kev tsim kho siab heev, kev tswj xyuas zoo, thiab kev txhawb nqa kev pabcuam dav dav, peb xa cov khoom siv hluav taws xob siab uas ua kom muaj kev ruaj khov ntawm lub network thaum ua tau raws li cov qauv kev nyab xeeb uas cov kab ke hluav taws xob niaj hnub xav tau.

Nkag Siab Txog Cov Khoom Siv Kis Hluav Taws Xob 6KV-40.5KV thiab Nws Cov Toj roob hauv pes hauv Kev Lag Luam

Cov kab ke faib hluav taws xob thoob plaws ntiaj teb tau txais kev txhawb nqa los ntawm qhov nruab nrab-voltage, uas txuas ntxiv los ntawm 6 kilovolts txog 40.5 kilovolts. Ntawm cov khoom tseem ceeb uas suav nrog hauv chav kawm voltage no yog cov tshuab hluav taws xob nqus tsev, cov khoom sib dhos switchgear, transformers, thiab cov relays tiv thaiv. Cov khoom no yog lub luag haujlwm rau kev tswj hwm kev ntws ntawm lub zog ntawm cov chaw uas tsim hluav taws xob thiab cov chaw uas cov neeg siv kawg siv. Cov khoom siv yuav tsum muaj peev xwm tswj tau qib siab tshaj plaws ntawm kev ntseeg siab thaum tib lub sijhawm tswj hwm cov khoom siv hluav taws xob ntau ntawm ntau yam kev hloov pauv ib puag ncig hauv qhov kev ua haujlwm no.

Core Cheebtsam thiab lawv cov haujlwm

Cov tshuab hluav taws xob nqus tsev yog cov khoom tseem ceeb ntawm kev ua haujlwm hloov pauv hluav taws xob nruab nrab. Lawv muab kev tshem tawm arc hauv cov chav kaw, uas tshem tawm qhov xav tau kev saib xyuas uas feem ntau cuam tshuam nrog cov khoom siv roj. Cov khoom siv no muaj cov txheej txheem tswj hwm nyuaj uas tso cai rau kev rho tawm qhov txhaum sai, yog li tiv thaiv cov khoom siv downstream los ntawm kev puas tsuaj uas yuav tshwm sim los ntawm kev cuam tshuam hluav taws xob. Ntau lub tshuab hluav taws xob, cov relays tiv thaiv, cov khoom siv ntsuas, thiab cov txheej txheem tswj hwm txhua yam muaj nyob hauv cov chav hlau uas tau npaj rau kev ua haujlwm thiab kev saib xyuas kom muaj kev nyab xeeb. Cov khoom sib dhos Switchgear feem ntau siv rau hauv kev faib hluav taws xob.

Yuav kom tso cai rau kev hloov pauv lub zog ntawm ntau theem ntawm lub kaw lus, cov transformers fais fab ua haujlwm hauv qhov voltage no siv cov ntaub ntawv insulating thiab cov tshuab txias tshiab. Cov khoom no txhim kho lub neej ua haujlwm ntawm cov transformers thaum tib lub sijhawm txo qis kev poob. Kev suav lej siv rau hauv cov qauv tsim transformer niaj hnub no kom zoo dua qhov kev faib tawm ntawm cov hlau nplaum. Qhov no ua rau txo qis ob qho tib si qhov loj me thiab qhov hnyav thaum piv rau cov kev xaiv ib txwm muaj.

Kev ua lag luam thiab cov kev xav tau ntawm kev lag luam

Cov khoom siv xa hluav taws xob uas ntseeg tau yog qhov tseem ceeb rau cov chaw ua haujlwm xws li cov uas tsim hlau, cov uas ua cov tshuaj lom neeg, thiab cov uas tsim khoom kom lawv cov sijhawm tsim khoom ua haujlwm tas mus li. Hauv cov xwm txheej zoo li no, nws yog qhov tsim nyog kom muaj cov khoom siv uas tuaj yeem ua tau raws li qhov xwm txheej nyuaj xws li qhov kub thiab txias heev, kev co, thiab huab cua corrosive thaum tseem khaws cov kev ua haujlwm tseeb. Txhua hom fais fab xav tau cov khoom siv hluav taws xob nruab nrab rau lawv cov kab ke pabcuam, uas yog lub luag haujlwm los muab kev txhawb nqa rau cov khoom siv hluav taws xob tseem ceeb. Cov kab ke no xav tau cov khoom uas tau qhia txog cov ntaub ntawv ntseeg tau thiab xav tau kev saib xyuas tsawg.

Cov neeg ua haujlwm hauv cov chaw tsim kho vaj tse uas muaj lub luag haujlwm tswj cov tshav dav hlau, cov chaw khaws ntaub ntawv, thiab cov txheej txheem thauj mus los xav tau cov thev naus laus zis uas muaj peev xwm muab kev sib koom ua ke nrog cov txheej txheem tswj hwm uas twb muaj lawm thaum tseem muab lub peev xwm los saib xyuas deb. Qhov tseem ceeb ntawm cov txheej txheem sib txuas lus txheem thiab kev sib koom tes nrog cov txheej txheem automation niaj hnub no uas tso cai rau kev tswj hwm chaw hauv nruab nrab yog qhov tseem ceeb los ntawm cov ntawv thov no.

Cov Qauv Tam Sim No thiab Kev Nce Qib ntawm Kev Siv Tshuab hauv Cov Khoom Siv Kis

Kev lag luam khoom siv hluav taws xob tab tom hloov pauv tas li vim yog cov kev pab cuam hloov pauv digital uas lub hom phiaj yog txhim kho kev ua haujlwm zoo thiab txhawb nqa lub peev xwm rau kev saib xyuas ua ntej. Los ntawm kev koom ua ke cov sensors thiab cov kab ke sib txuas lus zoo rau hauv cov tshuab ib txwm muaj, cov thev naus laus zis smart grid ua rau nws muaj peev xwm saib xyuas cov ntaub ntawv ua haujlwm hauv lub sijhawm tiag tiag. Cov kev ntsuas no suav nrog qhov kub thiab txias, siab, thiab cov yam ntxwv hluav taws xob. Vim yog cov kev txhim kho no, cov neeg ua haujlwm tau muab kev nkag siab dav dav txog kev noj qab haus huv ntawm cov khoom siv, uas ua rau nws yooj yim dua los teem sijhawm saib xyuas tiv thaiv thiab yog li txo qhov muaj feem yuav muaj kev puas tsuaj tsis tau xav txog hauv Cov khoom siv kis tau tus mob.

Innovation nyob rau hauv cov ntaub ntawv thiab tsim

Cov ntaub ntawv rwb thaiv tsev zoo heev, xws li nano-enhanced polymers thiab ceramic composites, muab kev ua haujlwm dielectric zoo dua thaum tib lub sijhawm txo qhov loj me ntawm cov khoom siv. Thaum piv rau cov txheej txheem rwb thaiv tsev ib txwm muaj, cov ntaub ntawv no muaj peev xwm nyiaj tau ntau dua thiab muab lub neej ua haujlwm ntev dua. Kev siv cov ntaub ntawv sib nqus uas suav nrog cov khoom tsis tshua muaj neeg ua rau nws muaj peev xwm tsim cov transformers uas me dua thaum tseem txhim kho lawv cov yam ntxwv ua haujlwm zoo. Qhov no ua rau txo qis ob qho tib si qhov chaw teeb tsa thiab cov nuj nqis khiav lag luam.

Hauv cov txheej txheem tiv thaiv digital, cov relays electromechanical qub raug hloov los ntawm cov khoom siv microprocessor-based, uas muab kev ua haujlwm zoo dua thiab ntau yam kev xaiv programming. Cov yam ntxwv ntawm cov txheej txheem no suav nrog kev sau cov xwm txheej thiab kev ntes waveform, uas pab tau rau kev tshuaj xyuas tom qab qhov xwm txheej thiab kev ua kom zoo dua ntawm lub kaw lus. Cov txheej txheem no kuj muab cov peev xwm tshuaj xyuas qhov txhaum tiav.

Yuguang Electric txoj kev coj noj coj ua hauv kev tsim kho tshiab

Muaj 39 daim ntawv pov thawj uas npog ntau yam ntawm kev tsim khoom siv hluav taws xob nruab nrab thiab tsim khoom, thiab Yuguang Electric tswj hwm kev tshawb fawb thiab kev txhim kho uas tau txhawb nqa los ntawm cov ntaub ntawv pov thawj dav dav. Lub hom phiaj tseem ceeb ntawm peb pab neeg engineering yog tsim cov kev daws teeb meem uas muaj peev xwm daws tau cov teeb meem kev lag luam tshwj xeeb thaum tib lub sijhawm txais cov thev naus laus zis tshiab uas txhim kho kev ua tau zoo thiab kev ntseeg siab. Peb lav tias peb cov khoom txuas ntxiv mus rau pem hauv ntej ntawm kev nce qib hauv kev siv tshuab los ntawm kev ua haujlwm ua ke nrog cov tsev kawm ntawv qib siab tshaj plaws thiab cov neeg koom tes hauv kev lag luam.

Cov kev nce qib tsis ntev los no suav nrog cov khoom sib dhos switchgear uas tau tsim tshwj xeeb rau lub zog cua thiab yog lub hom phiaj los tswj cov yam ntxwv ntawm cov khoom siv hluav taws xob rov ua dua tshiab. Cov txheej txheem tiv thaiv tshwj xeeb thiab kev sib koom ua ke zoo dua uas suav nrog rau hauv cov khoom no yog tsim los ua kom tau raws li cov kev xav tau ua haujlwm tshwj xeeb uas cov chaw tsim khoom cua muaj.

Cov txiaj ntsig sib txawv ntawm Yuguang Electric hauv kev lag luam 6KV-40.5KV

Kev ruaj ntseg zoo yog lub hauv paus tseem ceeb ntawm peb txoj kev tsim khoom, thiab nws tau txais kev txhawb nqa los ntawm cov txheej txheem kuaj xyuas uas ua tiav ntau dua li cov qauv uas kev lag luam tau teeb tsa. Txhua yam khoom raug muab tso rau hauv ntau cov txheej txheem kev lees paub kev ua tau zoo ua ntej nws raug xa tawm. Cov txheej txheem no suav nrog kev sim hluav taws xob siab, kev txheeb xyuas kev ua haujlwm ntev, thiab kev tshuaj xyuas kev ntxhov siab ib puag ncig. Qhov tseeb tias peb cov chaw txuas ntxiv tuav cov ntawv pov thawj rau ISO 9001: 2015, ISO 14001, thiab ISO 45001 qhia txog peb txoj kev mob siab rau kev tswj hwm zoo, kev saib xyuas ib puag ncig, thiab kev nyab xeeb ntawm cov neeg ua haujlwm hauv Cov khoom siv kis tau tus mob.

Superior Manufacturing Peev Xwm

Peb cov chaw tsim khoom siv cov kab sib dhos ua ke uas tsis yog tsuas yog txo lub sijhawm tsim khoom xwb tab sis kuj lav qhov zoo ntawm kev tsim khoom tas mus li. Cov khoom uas muaj qhov ntev sib txawv raug tsim los ntawm kev siv cov chaw ua haujlwm uas tswj hwm los ntawm lub khoos phis tawj, uas ua rau cov khoom muaj peev xwm ua haujlwm tau zoo rau lub sijhawm ntev. Txhawm rau kom muaj kev taug qab tau zoo, cov txheej txheem tswj hwm zoo sib xws saib xyuas txhua theem ntawm cov txheej txheem tsim khoom, pib nrog cov khoom siv raw thiab txuas ntxiv mus txog qhov kev sim kawg thiab kev xa khoom.

Hauv kev ua lag luam sib tw heev, Yuguang Electric sawv tawm ua tsaug rau cov txiaj ntsig yooj yim hauv qab no. Kev lees paub ntawm peb lub tuam txhab ua lub tuam txhab thev naus laus zis hauv tebchaws yog qhov kev xav txog peb txoj kev cog lus tas mus li hauv kev tshawb fawb thiab kev txhim kho uas yog lub zog tsav tsheb tom qab kev tsim khoom tshiab. Kev sib raug zoo nrog ntau yam kev xav tau ntawm qhov project thiab cov txheej txheem kev yuav khoom yog qhov ua kom ntseeg tau los ntawm cov ntaub ntawv pov thawj uas suav nrog ntau daim ntawv pov thawj kev lag luam. Cov neeg siv khoom tau muab nrog ib qho chaw lav rau tag nrho lawv cov khoom siv thaum lawv muaj kev nkag mus rau tag nrho cov peev xwm kev pabcuam lub neej, uas suav nrog txhua yam los ntawm kev sab laj tsim qauv thawj zaug mus rau kev pab tu mus sij hawm ntev.

Kev Pabcuam Zoo Tshaj Plaws

Ntxiv rau kev ua cov khoom tsim tawm, Yuguang Electric muab ntau yam kev pabcuam txhawb nqa kev txawj ntse, uas suav nrog kev pabcuam tsim qauv tus kheej, kev qhia txog kev teeb tsa, thiab cov kev pabcuam txij nkawm tas mus li. Los ntawm kev koom tes nrog peb cov neeg siv khoom, peb pab neeg engineering muaj peev xwm tsim cov kev daws teeb meem tus kheej uas ua tau raws li cov kev xav tau ua haujlwm tshwj xeeb thaum tseem khaws cia kev siv nyiaj tsim nyog. Muaj kev pabcuam teeb tsa kev tshaj lij lav tias cov khoom siv tau ua haujlwm zoo thiab ua haujlwm zoo tshaj plaws txij li thaum nws pib thawj zaug kom txog thaum nws siv tau ntev.

Ntxiv rau kev muab cov khoom seem ntau yam, kev pabcuam teb sai, thiab kev pabcuam kho cov khoom siv niaj hnub, kev pabcuam tom qab muag kuj suav nrog kev muab cov kev pabcuam uas ua rau lub neej ua haujlwm ntawm cov khoom siv ntev dua thaum siv cov thev naus laus zis tshiab. Thoob plaws hauv lub neej ua haujlwm, cov kev pabcuam no ua haujlwm kom ua kom muaj kev siv tau zoo tshaj plaws thiab kev ua tau zoo ntawm cov khoom siv thaum tib lub sijhawm txo tus nqi tag nrho ntawm kev muaj.

Yuav Ua Li Cas Xaiv Cov Khoom Siv Kis 6KV-40.5KV Rau Koj Lub Lag Luam?

Yuav kom xaiv tau cov khoom siv hluav taws xob nruab nrab uas tsim nyog, nws yog ib qho tsim nyog yuav tsum tau soj ntsuam ntau yam kev siv tshuab thiab kev lag luam uas muaj feem cuam tshuam rau kev ua haujlwm zoo mus sij hawm ntev. Cov qauv kev ua tau zoo yuav tsum ua raws li cov kev xav tau ntawm daim ntawv thov, uas yuav suav nrog cov theem hluav taws xob, cov ntsuas tam sim no, kev cuam tshuam qhov txhaum, thiab cov xwm txheej ib puag ncig. Kev sib raug zoo nrog cov kab ke uas twb muaj lawm tso cai rau kev sib koom ua ke zoo thaum tseem txo qhov nyuaj ntawm kev teeb tsa thiab lub sijhawm xav tau rau kev ua haujlwm, tshwj xeeb tshaj yog thaum xaiv Cov khoom siv kis tau tus mob.

Kev ntsuas kev ntsuas

Cov kev ntsuas hluav taws xob, uas suav nrog lub peev xwm rau cov hluav taws xob tas mus li, lub peev xwm los tiv thaiv cov voj voog luv luv, thiab kev sib koom tes ntawm kev rwb thaiv tsev, yuav tsum ua tau raws li lossis tshaj qhov xav tau ntawm lub kaw lus thaum cov ciam teb kev nyab xeeb raug tswj hwm. Nws yog qhov tsim nyog rau cov kev cai kho tshuab, uas suav nrog cov txheej txheem ua haujlwm, cov neeg sib cuag pabcuam, thiab cov chaw tswj hwm, kom lav qhov ua tau zoo ntawm lub neej kev pabcuam uas xav tau. Kev ua kom muaj kev ua haujlwm tsim nyog nyob rau hauv qhov xwm txheej tshwj xeeb ntawm qhov chaw, xws li qhov kub thiab txias, qib av noo, thiab qhov siab, yog lub luag haujlwm ntawm cov kev ntsuas ib puag ncig.

Kev Tshuaj Xyuas Tus Nqi-Cov Txiaj Ntsig thiab Kev Xav Txog Kev Yuav Khoom

Tus nqi khoom siv qub, cov nuj nqis cuam tshuam nrog kev teeb tsa, kev xav tau kev saib xyuas kev ua haujlwm, thiab kev muaj cov khoom hloov pauv thoob plaws lub neej ua haujlwm suav nrog rau hauv tag nrho cov nqi ntawm kev muaj. Cov kev pabcuam lav thiab kev txhawb nqa kev pabcuam muab cov kev xaiv txo qis kev pheej hmoo tseem ceeb thaum tseem lav qhov kev ntseeg siab tas mus li ntawm cov txheej txheem ua haujlwm. Thaum nws los txog rau kev npaj project, lub sijhawm xa khoom thiab kev sib koom tes logistics ua qhov tseem ceeb heev, tshwj xeeb tshaj yog rau kev teeb tsa uas muaj sijhawm rhiab heev.

Cov ntaub ntawv ua tiav uas Yuguang Electric tau tsim los ntawm ntau qhov chaw qhia txog peb lub peev xwm los muab cov kev daws teeb meem uas ntseeg tau uas ua raws li cov qauv tsim kho nyuaj. Peb lub peev xwm tsim khoom ntau yam tso cai rau peb los tswj hwm ob qho tib si kev teeb tsa ib txwm muaj thiab cov qauv tsim tshwj xeeb, uas ua rau peb muab cov kev daws teeb meem zoo tshaj plaws rau cov ntawv thov ib leeg thaum tseem khaws cov nqi sib tw thiab lub sijhawm xa khoom.

xaus

Kev lag luam kis tau hluav taws xob 6KV-40.5KV xav tau cov khoom siv uas ua ke kev ntseeg tau zoo nrog cov peev xwm niaj hnub. Yuguang Electric daws cov kev xav tau no los ntawm kev tsim qauv tshiab, cov qauv tsim khoom nruj, thiab kev txhawb nqa kev pabcuam uas ua kom muaj kev vam meej hauv kev siv ntau yam. Peb txoj kev cog lus rau qhov zoo, txhawb nqa los ntawm cov ntawv pov thawj dav dav thiab kev ua tau zoo, ua rau peb ua tus khub koom tes ntseeg siab rau cov haujlwm tseem ceeb thoob ntiaj teb, tshwj xeeb tshaj yog hauv kev muab kev ntseeg siab Cov khoom siv kis tau tus mob rau kev ua haujlwm ntev ntev.

FAQ

Q1: Dab tsi ua rau Yuguang Electric's Transmission Equipment txawv ntawm lwm cov chaw tsim khoom?

A: Yuguang Electric muab cov peev xwm tsim khoom siab heev nrog kev txhawb nqa kev pabcuam dav dav, txhawb nqa los ntawm 39 daim ntawv pov thawj thiab lub teb chaws cov tuam txhab tsim khoom siv thev naus laus zis siab. Peb cov khoom raug kuaj xyuas cov txheej txheem uas dhau cov qauv kev lag luam, ua kom ntseeg tau tias muaj kev ntseeg siab thiab kev ua haujlwm ntev. Tsis tas li ntawd, peb txoj hauv kev pabcuam tag nrho lub neej muab rau cov neeg siv khoom nrog kev lav phib xaub ib qho los ntawm kev tsim thawj zaug los ntawm kev txhawb nqa kev saib xyuas tas mus li.

Q2: Yuguang Electric ua li cas thiaj xyuas kom zoo thiab ntseeg tau hauv kev tsim khoom?

A: Peb cov txheej txheem tsim khoom tswj hwm ISO 9001: 2015, ISO 14001, thiab ISO 45001 daim ntawv pov thawj, qhia txog kev cog lus rau kev tswj hwm zoo, kev saib xyuas ib puag ncig, thiab kev nyab xeeb hauv chaw ua haujlwm. Cov kab ntau lawm tsis siv neeg ua kom muaj kev tsim khoom zoo, thaum cov txheej txheem kuaj xyuas suav nrog kev kuaj hluav taws xob siab thiab kev tshuaj xyuas kev ntxhov siab ib puag ncig lees paub kev ua tau zoo ua ntej xa khoom.

Q3: Yuguang Electric muab kev txhawb nqa dab tsi rau kev xaiv khoom siv thiab kev teeb tsa?

A: Peb muab kev txhawb nqa kev txawj ntse ntau yam suav nrog kev pabcuam tsim qauv tshwj xeeb, kev xam lej engineering ntxaws ntxaws, thiab kev taw qhia kev teeb tsa. Peb pab neeg engineering koom tes nrog cov neeg siv khoom los tsim cov kev daws teeb meem tshwj xeeb uas daws tau cov kev xav tau ua haujlwm tshwj xeeb thaum ua kom ntseeg tau tias muaj kev sib raug zoo nrog cov kab ke uas twb muaj lawm thiab ua raws li cov qauv siv tau.

Koom tes nrog Yuguang Electric rau Kev daws teeb meem khoom siv kis tau zoo tshaj plaws

Yuguang Electric npaj txhij los txhawb koj cov khoom siv hluav taws xob nruab nrab nrog cov kev daws teeb meem tshiab uas muab kev ntseeg siab thiab kev ua tau zoo tshaj plaws. Peb cov khoom lag luam tiav, txhawb nqa los ntawm kev txawj ntse engineering dav dav thiab cov peev xwm tsim khoom pov thawj, ua kom muaj kev daws teeb meem zoo tshaj plaws rau koj cov ntawv thov tshwj xeeb. Peb caw cov thawj coj kev yuav khoom, cov engineers, thiab cov neeg tsim khoom los tshawb nrhiav peb cov peev xwm xa khoom siv kis tau zoo thiab tshawb pom tias peb txoj hauv kev tsom mus rau cov neeg siv khoom tuaj yeem txhim kho koj txoj kev ua haujlwm zoo li cas. Tiv tauj peb pab neeg kev tshaj lij ntawm yog ygvcb@hotmail.com los tham txog koj cov kev xav tau ntawm qhov project thiab tau txais cov lus hais kom ntxaws.

References

1. Pawg Neeg Saib Xyuas Hluav Taws Xob Thoob Ntiaj Teb. "Cov khoom siv hloov pauv hluav taws xob siab thiab cov khoom siv tswj - Ntu 1: Cov lus qhia dav dav rau cov khoom siv hloov pauv tam sim no thiab cov khoom siv tswj." IEC 62271-1: 2017.

2. IEEE Lub Koom Haum Fais Fab thiab Zog. "IEEE Phau Ntawv Qhia rau Kev Siv Cov Hluav Taws Xob Hluav Taws Xob hauv Cov Txheej Txheem Nruab Nrab Voltage." IEEE Std C37.013-2015.

3. Chen, W., et al. "Cov Khoom Siv Siab Tshaj Plaws hauv Cov Khoom Siv Hluav Taws Xob Nruab Nrab Voltage: Kev Ua Haujlwm thiab Kev Txheeb Xyuas Kev Ntseeg Tau." Journal of Electrical Engineering Technology, 2023.

4. Lub Koom Haum Tebchaws ntawm Cov Qauv thiab Kev Siv Tshuab. "Smart Grid Framework thiab Roadmap rau Kev Ntseeg Tau Hluav Taws Xob." NIST Special Publication 1108R3, 2022.

5. Zhang, L., thiab Kumar, S. "Kev Tsim Kho Tshiab hauv Kev Tsim Kho Circuit Breaker Vacuum rau Kev Txhim Kho Grid." Lub Rooj Sib Tham Thoob Ntiaj Teb txog Cov Txheej Txheem Technology ntawm Lub Hwj Chim, 2023.

6. Lub Koom Haum Txuj Ci Txuj Ci Hauv Tebchaws Meskas. "Switchgear - Rated Control Voltages thiab Lawv Cov Ranges." ANSI C37.13-2015.