- Kune akawanda magrid eIEEE Std 80 substation tinotsanangura matanda epasi ane mhangura akabatana nedhayamita ye14.2–19 mm (5/8″–3/4″)uyeKureba 2.4–3.0 m (8–10 ft)— dhayamita yehupenyu hwekuora, kureba kwekudzivirira.
- Kupeta kaviri hurefu hwetsvimbo kunoderedza kuramba kwetsvimbo ne40%; kupeta kaviri hurefu hwayo ne10% chete - kureba ndiko dhizaini yako, uye dhayamita ndiyo dhiyamita yetsvimbo yako yehupenyu hurefu.
- Madhaivha eIEEE 80 saizi grid conductors anodziya achipesana nemagetsi emagetsi, asi tinoshandisa saizi yematanda zvichienderana nesoil model, nguva yekubvisa kubva 0.1 kusvika 0.5 s, uye bhajeti yengura yemakore 40 kusvika 50 - kwete ampacity chete.
- Pakutenga tinoisa jira remhangura rine ≥ 0.254 mm, ≥ 99.95% copper purity, uye ≥ 580 N/mm² tensile strength — mitsetse mitatu inoparadzanisa tsvimbo yemakore makumi mashanu kubva kutsvimbo yemakore gumi.
- Takavaka karukureta ine tsvimbo imwe chete, tafura yekuenzanisa zvinhu, uye runyorwa rweRFQ rwemitsara 7 rwaunogona kuisa mutender yako inotevera.
Kune grid yepasi ye substation yakagadzirirwa IEEE Std 80, mhinduro yedu inoshanda ndeiyi: taurai kuti tsvimbo dzepasi dzakasungirirwa dzesimbi dzine dhayamita ye14.2–19 mm uye hurefu hwe2.4–3.0 m ndidzo dzinoshandiswa, uye dzinongotsaukira chete kana modhi yekudzivirira ivhu kana bhajeti yekuora yataura kudaro.Chinyorwa chazvino, IEEE Std 80-2013 (chakasimbiswazve 2023), hachikupi tafura ine dhayamita yetsvimbo — chinokupa miganhu yemagetsi ekubata nekudzika, kuverenga kwekubatanidza kondakita, uye maitiro ekugadzira anotungamirirwa nevhu.Gwaro reE&S Grounding Solutions' IEEE 80, chiyero ichi chinodzora zviteshi zveAC zve1 kV zvichikwira uye chinotaurwa neOSHA 29 CFR 1910.269, zvinoreva kuti dhizaini yegrid yako igwaro rekutevedzera mitemo, kwete zano.
Ndakapedza makore gumi nemaviri ndichitengesa kunze kwenyika nekudzivirira mheni, uye ndisina kutsanangura zvakakwana maRFQs angu ekushandisa.tsvimbo dzesimbi dzakasungirirwa nemhanguraGara uchitevedzera maitiro akafanana: mutengi anokopa "tsvimbo yepasi, 5/8 inch × 10 ft" kubva padhirowa ra1998, uye hapana anoongorora kana ivhu riri panzvimbo yacho richigona kushandisa tsvimbo iyoyo. Chinyorwa chino chinogadzirisa izvozvo: zvinodiwa neIEEE 80 kubva patsvimbo, kuti data revhu rinoisa sei dhayamita nehurefu, kuti chinhu chipi chinorarama kwemakore makumi mashanu, uye mitsara chaiyo yekutenga kwako.
Chii Chinodiwa NeIEEE 80 Kubva Patsvimbo Yepasi Yenzvimbo Inoshandiswa Pakugadzira Zvishandiso?
IEEE Std 80 inoda zvinhu zvitatu kubva kune chimwe nechimwe chinhu chegrounding-system, zvinosanganisira tsvimbo: kutakura grid fault current yepamusoro panguva yekubvisa pasina kusanganisa, kuchengetedza touch uye step voltages dziri pasi pemiganhu ye body-current inoshivirira, uye kuchengetedza grid resistance yakaderera zvakakwana kuitira kuti ground potential rise irambe ichikwanisika.Hapana muchiyero chinoti "tsvimbo inofanira kuva 16 mm." Inokupa maequation; zviyero zvinobva mumuenzaniso wako wevhu uye kudzidza kwezvikanganiso.
Tsanangudzo nhatu dzinokosha pano, uye ndinodzichengeta dzakarurama nekuti ndinoona vatengi vachidzivhiringidza mumagwaro etender kota yega yega. Touch voltage ndiyo musiyano uripo pakati pechivakwa chaunobata pasi nevhu riri pasi petsoka dzako panguva yekukanganisa. Step voltage ndiyo musiyano uripo pakati pemamita maviri kubva pamamita imwe kusvika pahafu. Ground potential rise (GPR) ndiyo voltage yegrid pamusoro penyika iri kure — grid current yakawedzerwa ne grid resistance.
Maererano neGwaro rekugadzira pasi reKeentel Engineering rekushandisa substation, maitiro akajairika eIEEE 80 anodzivirira grid pasi pe1 Ω (kutapurirana) uye pasi pe5 Ω (kugoverwa), netsvimbo dzakasungirirwa nemhangura dze2.4–3.0 m uye 16–19 mm senzira yeindasitiri.Nekuti 20–50% chete yehuwandu hwemagetsi emagetsi emagetsi emagetsi emagetsi anodzoka kuburikidza negrid yemuno (mamwe ese anouya kumba kuburikidza newaya dzesimbi uye neutrals), network yemagetsi emagetsi ine saizi inoenderana nemagetsi emagetsi emagetsi emagetsi emagetsi anopatsanurwa, kwete headline fault rating iri pa nameplate.Kusanzwisisana ikoko — kusvika pa40 kA kana grid ichiona 12 kA — ndiko kunoita kuti copper itenge zvakanyanya nemidziyo inotakurika.
Mhinduro yechidimbu:IEEE Std 80-2013 (yakasimbiswazve 2023) inodzora kudzika kweAC substation pa1 kV zvichikwira: inotsanangura miganhu yekubata nedanho remagetsi inobvumirwa kubva panguva yekubvisa fault uye huremu hwemuviri, uye inoda kuti grid — tsvimbo yega yega inosanganisirwa — itakure split-factor grid current pasina kudarika miganhu yekupisa kweconductor.
Imwezve pfungwa inokodzera mune zvese zvinodiwa paEPC.Nekuti dombo rakapwanyika pamusoro pevhu rinowedzera simba rekubata rinobvumidzwa — muenzaniso wakashanda waKeentel unoratidza maV angangoita 267 pavhu risina chinhu re100 Ω·m richikwira kusvika pa720 V pasi pe100 mm yedombo re3,000 Ω·m, kuwedzera kwe2.7× — ndinoona spec ye surface layer ne spec ye rod sechisarudzo chimwe chete, kwete zviviri.Ndakaona vatengi vachitaurirana mitengo yetsvimbo ichidzikiswa ne4% vozobva vadurura matombo akasvibiswa nefines ayo akarasa mari yekuchengetedza yakapetwa kagumi kupfuura mari yakachengetedzwa - dombo iri rakachipa uye fizikisi haina muripo.
Ko Mhepo Yekukanganisa Inoshanduka Sei Kuita Dhayamita Yetsvimbo Yepasi?
Mhepo inokanganisika inoshanduka kuita dhayamita yetsvimbo yakaderera zvikuru pane zvinofungidzirwa nevatengi: dhayamita inobviswa mumasekondi 0.1-0.5, hapana dhayamita inofambiswa inosvika pakupisa kwakadzikama, uye tinosarudza dhayamita yekufambiswa kwetsvimbo uye ngura panzvimbo pekukwanisa kwayo kukwira.Kuverengera kweIEEE 80's thermal fusing (Onderdonk naSverak equations, 250 °C yepamusoro pemajoini akarukwa uye 450 °C ye exothermic welds) kunotungamira maburi egrid conductors — kazhinji 70–120 mm² bare copper, kusvika 240 mm² ye high-fault-duty yards; tsvimbo dzinofamba mukati mehamvuropu iyoyo ne margin yakakura. Handigoni kuwedzeredza izvi, nekuti zvinoshandura macatalog mazhinji anotengesa tsvimbo.
Heino fizikisi yandinoda kuti timu yega yega yekutenga igare yakagadzirira: kuramba kwetsvimbo imwe chete kunenge R = ρ / (2πL) × [ln(8L/d) − 1], nehurefu L mu denominator hwakatsetseka uye dhayamita d mukati me logarithm. Zvinoenderana neGwaro rekushandisa uye rekutarisa rekushandisa magetsi renVent ERICO Electric Utility, kupeta kaviri kureba kwetsvimbo kunoderedza kuramba kwayo ne40%, ukuwo kupeta kaviri dhayamita yayo kunochera inenge 10% chete.Nekuti dhayamita inongokupa mukana wekuvandudza kusimba kwe10% chete pakuwedzera kaviri asi inowedzera hupenyu hwekuora zvichienderana nehupamhi hwayo hwakaputirwa nemhangura, tinoudza vatengi veEPC kuti vashandise kureba kutanga uye padhayamita yechipiri - uye data redu rinobvumirana.
Chii chinotengwa nedhayamita? Zvinhu zvitatu, zvichitevedzana nekukosha kwazvo:
- Ini ndinoona ngura sechikamu chekutanga chinotengwa nedhayamita, nekuti tsvimbo ye17.2 mm ine nzvimbo yakawanda yekupisa yakaputirwa nemhangura kupfuura tsvimbo ye14.2 mm muvhu rine simba.
- Ini ndiri panzvimbo yechipiri pakugona kutyaira, nekuti tsvimbo yakakora inopona ichipfuura nemuchando, laterite, uye construction fill isingarove musoro wayo.
- Ndakaisa basa rekubatanidza panzvimbo yechitatu, nekuti exothermic weld kana clamp inoona kushushikana kwemuchina panguva yekuisa uye kuzununguka kwesimba remafault.
Chishandiso chedu chemufekitori i14.2 mm (5/8″) yemagridi emhando yekugovera uye 17.2 mm (3/4″) yemhando yekutumira, ine 20–25 mm inowanikwa yekudzikisa simba kana ngura yakawanda. Tsvimbo yega yega inosiya chirimwa chedu cheXinchang ine ≥ 0.254 mm copper layer, ≥ 99.95% copper purity, ≥ 580 N/mm² tensile strength, straightness mukati me1 mm/m, uye 27.5 ± 2.5° point angle. Pa outgoing QC tinoyera dhayamita yecopper pamatanda mashanu pabundle (N=5) ne eddy-current thickness meter, uye sample imwe pabhajeti imwe chete inowana 90° bend test yakaonekwa - cheki dzakafanana dzandinokukumbira kuti udziise parisiti pazasi. Full tolerances dzakaburitswa pawebhu redu.tsvimbo yepasi yakaputirwa nemhangurapeji rezvinotsanangurwa.
Mhinduro yechidimbu:Kune magridi epasi peIEEE 80, dhayamita yetsvimbo isarudzo yekugara kwenguva refu uye kugona kutenderera, kwete sarudzo yehukuru - zvikanganiso zvinobuda mukati memasekondi 0.1-0.5, saka kunyange tsvimbo yemhangura ye14.2 mm ine mwero wekupisa; kukwidzwa kwehukuru kusvika 17.2 mm kana 19 mm kunoruramiswa nekukasharara kwevhu nemamiriro ekutyaira.
Tsvimbo Dzinofanira Kureba Sei Pakushandisa Ivhu Rako?
Saizi yematanda epasi kuti asvike padanho revhu rinofambisa mvura zvakanyanya rinoratidzwa nemuenzaniso wenzvimbo yako — 2.4–3.0 m yevhu rakajairika rine jira, uye 6–30 m muzvikamu zvakabatana kana zvakadzika uko jira repamusoro rakaoma, rakaomeswa nechando, kana kuti rinodzivirirwa zvakanyanya.Kureba ndiko kwatinokunda kupikisa. Kodhi yekuNorth America ndiyo inoisa pasi: iyoMharidzo yeIEEE Houston Region pamusoro pekudzika kwehurongwa hwemaindasitiriInofamba nepakati pezvinodiwa neNEC 250.53 zve 8 ft (2.44 m) yekubata ivhu, ndosaka tsvimbo dze 8 ft ne 10 ft dzichinyanya kushandiswa mumakatalogu emagetsi.
Ndinotanga hurukuro yese yakareba neWenner four-pin survey paIEEE Std 81: maelectrode mana ari pa space yakaenzana a, visual resistivity ρ = 2πaR, inodzokororwa pa spacings kubva pa 0.5 m kusvika 100 m kuitira kuti inversion software igone kuvaka layered soil model.Nekuti tsvimbo inogumira mukati mechikamu chakaoma che2,000 Ω·m isingapedzi chinhu asi tsvimbo imwecheteyo inoroverwa 3 m yakadzika muchikamu che100 Ω·m inogona kukunda kuramba kwegrid, sarudzo yehurefu hwetsvimbo inofanira kuuya mushure memuenzaniso wevhu, kwete pamberi payo.Chidzidzo cheKeentel chemigodhi nefekitori chinotaura pfungwa iyi zvine hutsinye, uye ndinogara ndichiitaura kune vatengi: maelectrode mana ane 30 m akadzika aitakura inenge 62% ye fault current dispersion uku achimiririra isingasviki 3% yehurefu hwemuchina wakavigwa.
Mutemo wangu, mushure memakore gumi nemaviri ekuverenga maEPC tenders — akawanda eMiddle East neSoutheast Asian substations uko RFQ inosvika isina data resistivity yevhu:
- Ndinotendera matanda e2.4 m (8 ft) chete kana modhi yacho ichiratidza ivhu rinofambisa mvura mukati memamita maviri ekutanga uye nzvimbo yacho isingamboomeswi nechando.
- Ndinokurudzira tsvimbo dze3.0 m (10 ft) senzira yekushandisa nguva dzose, nekuti 0.6 m yakawedzerwa inodhura zvishoma uye inotenga kuvandudzwa kwekudzivirira kwe8–12% kupfuura 2.4 m.
- Ndinotsanangura tsvimbo dzakabatana dzakarukwa, dzakarukwa muzvikamu zve 1.2–3.0 m uko kune jira rakadzika rekufambisa mvura, nekuti tambo dzakabatana dze 6–12 m dzinogara dzichideredza huwandu hwetsvimbo panzvimbo dzinodzivirira simba zvakanyanya.
- Taura musoro wekutyaira kana sleeve yekutyaira yetambo dzakabatana, nekuti shinda yekubatanidza yakakangwa ndiyo dambudziko guru ratinoona mumifananidzo yenzvimbo.
Zano rechokwadi — maonero angu, kwete emutemo: hapana hurefu hwakakwana hwetsvimbo panzvimbo ine ivhu rinoshanduka-shanduka. Kana nzira dzako dzeWenner dzisingabvumirane neinopfuura 30% muyadhi yese, unoda dhizaini yenzvimbo kana maelectrode akadzika, uye chero mutengesi anotaura nezvehurefu hwetsvimbo imwe chete asina kukumbira ruzivo rwako rwekudzivirira ari kukutengesa simbi, kwete kuisirwa pasi.
Chishandiso Chinoshanda: Chiyero Chekuramba Kurwisa Tsvimbo Imwe Chepasi (Sverak equation)
Fungidzira kuramba kwetsvimbo imwe yakamira neR = ρ / (2πL) × [ln(8L/d) − 1]. Izvi zvinoongorora tsvimbo imwe chete yakaparadzana — dhizaini yegrid yako ichiri kuda kudzidza kwakazara kweIEEE 80.
Mhedzisiro ichaonekwa pano.
Simbi Yakasungirirwa neMhangura vs. Simbi Yakagadzikwa neGalvanized vs. Simbi Yakasimba: Ndeipi Tsvimbo Inopona Grid yeMakore makumi mashanu?
Kwemakore makumi mana kusvika makumi mashanu ehupenyu hwechinhu, ndinoshandisa simbi ine mhangura: inosanganisa kugona kufambiswa kwesimbi nehupenyu hwemhangura pamusoro pemhangura uye kusagadzikana kwakaderera kwekusangana, zvishoma pane mutengo wemhangura yakasimba.Ndichataura chokwadi pamusoro pekuti chinhu chimwe nechimwe chinokunda kupi - kuenzanisa kunongofadza chigadzirwa chedu chete hakuna zvakunobatsira. Kana nzvimbo yacho yakaoma, isina hukasha, uye yakagadzirwa kwemakore gumi nemashanu ekugadzirisa, ndinotaura kudaro uye ndinotora galvanized - kutengesa mhangura yakabatana muvhu risiri iro ndiko kunoita kuti mutengesi arasikirwe neodha yechipiri.
| Chiyero chekuenzanisa | Simbi yakasungirirwa nemhangura | Simbi yakabatidzwa inopisa | Mhangura yakasimba |
|---|---|---|---|
| Hupenyu hwekushandira muvhu rakajairwa rakanyorova | ≥ makore makumi mashanu ne ≥ 0.254 mm jira remhangura | Kazhinji makore 10-15 zinc isati yadyiwa | Makore anopfuura makumi mana, zvakanaka kwazvo |
| Simba rekudhonza (kugona kutyaira) | ≥ 580 N/mm² — kutyaira uchipfuura nepakati petill uye kuzadza | Simbi yakakura, yakafanana | ≈ 220 N/mm² — howa hunokombama zviri nyore |
| Mutengo wezvinhu (zviyero zvakafanana) | Nheyo yekutanga | yakachipa ne15–25% pane yakasungirirwa nemhangura, nekuti zinc yakachipa zvikuru kupfuura mhangura yemagetsi | Inodhura 50–70% kupfuura yakasungirirwa nemhangura, kunyanya nekuda kwemutengo wezvinhu zvemhangura zve cathode. |
| Kugadzikana kwekudzivirira ivhu-interface | Yakagadzikana kwehupenyu hwese — chimiro chemhangura nevhu hachimbochinji | Inoora kana zinc ichiora, zvichiwedzera kuramba kubatwa | Yakagadzikana yehupenyu hwese |
| Zvinokurudzira kuba mhangura panzvimbo iyi | Kukosha kwakaderera - zvimedu zvidiki ipurasitiki yakatetepa | Hapana | Yakakwira - dambudziko rinozivikanwa rekubiwa kwenzvimbo dziri kure |
| Nzira yemaitiro | Zvinyorwa zveUL 467 neIEC 62561-2 zvinowanikwa zvakanyanya | Magadzirirwo ezvishandiso zvekare, zvinyorwa zvishoma zviripo parizvino | Inowanikwa asi haiwanzo dhura mari yakawanda |
Nekuti jira remhangura rakabatanidzwa nesimbi kusimbi ine kabhoni shoma (inenge 0.15% kabhoni), tsvimbo inotyaira sesimbi asi yakatarisana nevhu semhangura, inova ndiyo chaiyo musanganiswa unodiwa neelectrode ye substation inofambiswa.Tsvimbo yega yega yatinotumira inopfuura bvunzo yekukombama kwe90° pa 100 mm radius isina kutyoka kwemhangura uye isina kupatsanurwa kwebond — dai cladding yaingoiswa chete, kukombama ikoko kwaizoibvisa seganda rebhanana.tsvimbo yesimbi yemagetsi yakasungirirwa nemhanguraPeji rinoratidza chikamu chakakamurwa chatinoshandisa patinoratidza hukama nevanoongorora maakaunzi vanoshanya.
Ndeipi tsvimbo yaunofanira kusarudza?
- Sarudza simbi ine mhangura kana nguva yekugadzira iri makore 30-50, ivhu rakanyorova kana kuti rine ngura zvishoma, uye matanda anofanira kurovererwa pane kuvigwa mugoronga.
- Sarudza simbi yakabatidzwa inopisa chete kana chinhu chacho chiri chenguva pfupi, ivhu rakaoma uye risingarwisi, uye zvirevo zvinobvuma zvakajeka kutenderera kwekutsiva maerekitirodhi kwemakore gumi kusvika gumi nemashanu.
- Sarudza mhangura yakasimba kana ivhu rava kupwanya zvakanyanya (makemikari, kurwiswa kwechloride yegungwa), kugona kufambiswa nemhepo kunogadziriswa nekubooresa kana kudira mvura, uye bhajeti yacho inotora mutengo wezvinhu wakakwira ne50–70% pamwe nekudzivirira njodzi dzekubiwa.
- Sarudza chimwe chezvizvi chete kana denderedzwa repamusoro rapfuura 2,000 Ω·m — nzvimbo iyoyo inoda maerekitirodhi anodhonzwa zvakadzika kana zvinhu zvinosimudzira pasi kutanga; zvinhu zvetsvimbo ndiyo hurukuro yechipiri.
Mhinduro yechidimbu:Matavi edu esimbi akabatana nemhangura anobatanidza ≥ 0.254 mm copper layer ine ≥ 580 N/mm² tensile strength ye ≥ makore makumi mashanu ekushanda zvichienderana nemutengo wepakutanga wesarudzo nhatu dzakajairika — ndosaka dziri electrode yakajairika yeIEEE 80 grids pasi rese.
Mitsetse 7 yeEPC Inofanira Kuiswa Nevatengi Pasi RFQ
RFQ yetsvimbo yepasi inongotaura dhayamita nehurefu chete inokoka tsvimbo yakachipa pamusika; mitsara minomwe yandinoshandisa inoshandura chinangwa chenyu chekugadzira cheIEEE 80 kuita mutauro wekutenga unomanikidzwa.Ndakanyora mitsara iyi yekupa matikiti mumakondinendi matatu, uye imwe neimwe iripo nekuti purojekiti yakadzidza kusavapo kwayo nenzira yakaoma - bvunzo yekukombama kwemutsara wechishanu iripo nekuda kwetsvimbo dzakabatana dzakakangwa, dzakatsemurwa neshinda dziri panzvimbo ino mifananidzo inotumirwa nevatengi.
- Taura dhayamita se14.2 mm (5/8″) yepasi pegrids dzemhando yekugovera uye 17.2 mm (3/4″) yemhando yekutapurirana kana ivhu rinoparadza, nekuti dhayamita ndiyo bhajeti yako yehupenyu hwekuora.
- Taura matanda madiki ane 2.4 m kana 3.0 m, kana zvikamu zvakabatana zvine shinda 1.2–3.0 m zvetambo dzakadzika, nekuti kureba kunofanira kuenderana nechikamu chinofambisa mvura chemuenzaniso wevhu.
- Taura ukobvu hwemhangura hushoma hwe0.254 mm chero kupi zvako patsvimbo zvichienderana neUL 467 / IEC 62561-2, nekuti tsvimbo dze "mhangura dzakagezwa" dziri pasi pe0.1 mm dzinokundikana muchikamu chehupenyu hwekugadzira.
- Tsanangura kuchena kwemhangura kwe ≥ 99.95% uye simbi ine kabhoni shoma ine kabhoni inosvika 0.15%, nekuti kuchena kwesimbi pamwe chete ne ductility yesimbi zvinogadzirisa conductivity uye kutyaira.
- Taura simba rekusimba kwesimba re580 N/mm² pamwe nekuyedzwa kwakaoneswa kwe90° pa100 mm radius pasina kutyoka kwemhangura, nekuti nhamba idzi mbiri dzinoburitsa tsvimbo dzenhema dzakasungwa ipapo ipapo.
- Taura kuti mutsetse wacho wakatwasuka uri mukati me1 mm/m uye kona ye driving point ye 27.5 ± 2.5°, nekuti tsvimbo yakakombama sebhanana inodzungaira pakadzika uye point isina kujeka inodzivisa nyundo.
- Taura zvinobatanidzwa zve exothermic welded (450 °C joint class muIEEE 80's thermal calculation) pamwe nemishumo yekuyedza pa-lot yehukobvu hwemhangura, kudhonzwa, uye mhedzisiro yekukombama, nekuti kubatana ndiko kunokundikana magrid.
Chii Chaunofanira Kusimbisa Usati Wabvumidza Mutengesi weGround Rod?
Ndisati ndabvumidza chero mutengesi wemidziyo yevhu, ndinosimbisa zvinhu zvina: humbowo hwekudzora maitiro, data rekuyedza kwechikamu chimwe nechimwe, chiyero chezvitupa, uye ruzivo rwezvinhu zvinofinha zvinosarudza kana michina yevhu yasvika zvakananga uye panguva yakatarwa.Mutengo pamita imwe chete ndiwo mubvunzo wangu wekupedzisira, kwete wekutanga — mudziyo wakarambwa unodhura kupfuura tsvimbo yepamusoro.
Pakudzora mashandiro, tinokumbira kuti pave nekufambiswa kwekugadzirwa uye magedhi eQC akanyorwa. Cheni yedu inoshandisa lathing, logo embossing, electroplating, cooling, neatening, diameter testing, copper-layer testing, uye packing, inovharwa neIQC, IPQC, first-piece, mass-production, OQC, uye FQC — magedhi matanhatu akanyorwa ane varidzi vane mazita. Mutengesi asingakwanise kugadzira rimwe chete muemail imwe chete akupa mhinduro.
Padata rekuyedza, tinoda mishumo yechikamu chimwe nechimwe yehukobvu hwemhangura, simba rekudhonza, uye bvunzo yekukombama, uye tinochengeta sampuli imwe chete yetsvimbo pachikamu chimwe nechimwe chakaunzwa kwehupenyu hwese hwechinhu. Pakusimbiswa, enzanisa chiyero chetifiketi nechigadzirwa: sisitimu yedu yemhando inoshanda pasi peISO 9001, chitupa chedu cheUL 467 chekutevedzera chinosanganisira mutsetse wetsvimbo yevhu, uye mushumo wedu webvunzo yemhando yechitatu kubva kuCEPRI (China Electric Power Research Institute) unoratidzwa pamapeji echigadzirwa — "ISO certified" isina chiyero chekushongedza. Panyaya yezvekufambisa, simbisa chiyero chekurongedza (chedu zvidimbu gumi pachubhu yePVC, 20-50 bundles pa pallet, EXW/FOB/CIF/DDU kubva kuNingbo kana Shanghai) uye kugona kwekunyora pamwedzi; tinoshandisa zvidimbu zviuru makumi mashanu pamwedzi, nhamba inokosha kana kontrakita wako wehurumende achikurumidzisa purogiramu. Rudzi rwakazara rwuri pasi peduchikamu chetsvimbo yepasi yakaputirwa nemhangura, ine dhayamita, urefu, uye branding yeOEM/ODM setsika yakajairika.
Mhinduro yechidimbu:Mutengesi ane hunyanzvi anoratidza gwaro rekugadzirwa kwezvigadzirwa neQC, ukobvu hwega rega rega, mishumo yekukwesha nekukombama, chitupa chine zita remuchina, uye chiyero chekunyora pakutakura pamwe nekukwanisa kwemwedzi wega wega - mutsetse wedu unomhanya zvidimbu zviuru makumi mashanu pamwedzi nemagedhi matanhatu eQC kubva kuIQC kuenda kuFQC.
Mibvunzo Inowanzo bvunzwa
IEEE 80 inoda dhayamita yakadii yekuisa pasi pazviteshi zvemagetsi?
IEEE Std 80 haina dhayamita imwe chete; inoda kuti sisitimu ideredze ma voltage ekubata nekudzika uye inotakura magetsi asina kusanganiswa. Maitiro ekushandisa anoshandisa tsvimbo dzemhangura dzine 16-19 mm, dzine 14.2 mm (5/8″) sechinodiwa uye 17.2 mm (3/4″) inofarirwa panzvimbo dzinoshandiswa kutakura zvinhu kana kuti dzinoparadza — nzvimbo dzinoshandiswa kutakura zvinhu dzinoita kuti ngura irambe iripo, kwete kupisa.
Rombo repasi re substation rinofanira kunge rakareba sei?
Magadzirirwo mazhinji ezviteshi zvemagetsi anoshandisa tsvimbo dzakamira dze 2.4–3.0 m (8–10 ft), nehurefu hwakasarudzwa kubva mumhando yevhu: tsvimbo dzinowana mutengo wadzo kana dzasvika padanho rakadzika rekufambisa mvura. NEC 250.53 inodawo kanenge 2.44 m (8 ft) yeelectrode pakubata ivhu, uye nzvimbo dzinodzivirira zvakanyanya dzinogona kururamisa tsvimbo dzakabatana kana dzakadzika dze 6–30 m.
Ko tsvimbo yevhu yakakura ine dhayamita inoderedza here kuramba kwegrid zvakanyanya?
Kwete. Kudzivirira tsvimbo kunongoenderana nedhayamita chete asi kunenge kwakapesana nehurefu: kupetwa kaviri kwedhayamita kunoderedza kupesana neanenge 10%, ukuwo kupetwa kaviri kwedhayamita kuchideredza neanenge 40%. Tinoudza vatengi kuti vatsanangure dhayamita kuti vagone kudhonzwa uye kuti ngura igare kwenguva yakareba sei, uye kuti vashandise hurefu kuti vasvike pakupikisa kwavanoda.
Ronga repasi rakasungirirwa nemhangura kana rakabatidzwa: ndechipi chiri nani kune chiteshi chemagetsi chemakore makumi mana?
Simbi yakasungirirwa nemhangura ndiyo sarudzo iri nani kune chinhu chemakore makumi mana: jira remhangura re ≥ 0.254 mm rinotsigira hupenyu hwemakore makumi mashanu muvhu rakajairika, nepo zinc yakanyudzwa nekupisa ichidyiwa nekukurumidza muvhu rakanyorova kana rine acidic. Kubatana kwemhangura nevhu kunoitawo kuti grid isarambe yakasimba sezvo nzvimbo yacho ichikura.
Gridhi repasi rinoda simbi ngani?
Hapana kuverengwa kwese kwese; nhamba yacho inobva muongororo yeIEEE 80. Tsvimbo dzinoenda pamakona emupendero apo ma voltage gradients anonyanya kuzara, pa transformer neutrals ne arrester bases, uye chero kupi uko soil model inoratidza dhayamita yakadzika ye conductive layer. Nzvimbo yekugovera yepakati inogona kushandisa 12–32 rods; yadhi hombe ye transmission inogona kudarika 100.
Kobvu hwemhangura hupi hwandinofanira kutaura patsvimbo yemhangura yakasungirirwa?
Taurai kuti jira remhangura rinenge riri pasi pe0.254 mm (10 mils) rinenge riri papi, zvichienderana neUL 467 neIEC 62561-2. Kune ivhu rinopisa, nzvimbo dzemugungwa, kana kuti magadzirirwo aro anorarama kwemakore makumi mashanu, kumbirai jira rinorema re0.33 mm kana kuti pamwe nemishumo yekuongorora ukobvu hwemugadziri pachikamu chimwe nechimwe.
Ndingaongorora sei hunhu hwetsvimbo yevhu kana zvinhu zvatumirwa zvasvika?
Tarisa risiti ine matanho mashanu: tarisa zviratidzo zvichienderana neodha yekutenga; ongorora ukobvu hwemhangura pamatanda mashanu pabhandi rega rega; tarisa kana paine mitswe kana simbi yakafumurwa; ona bvunzo yekukombama kwe90° pa100 mm radius isina kutyoka kwemhangura; uye tarisa kuti yakatwasuka sei mukati me1 mm/m uye angle ye27.5°.
Unoda Rod Spec Inopona Muongororo Yezvikanganiso uye Odhiti Here?
Titumirei ruzivo rwenyu rwekudzivirira ivhu, huwandu hwemapundu, uye nguva yekubvisa - tinokupai mazano ehurefu hwedhayamita uye mutengo mukati memaawa makumi maviri nemana.
Kumbira Ongororo yeSaiziKana kuti tumira emailnorman@zjshibang.com— dhayamita, urefu, uye branding yeOEM/ODM zviripo.
Nezvemunyori — Jane Yang
Jane Yang ndiye Maneja weKutengesa kuXinchang Shibang New Material Co., Ltd., fekitori yakagadzira zvigadzirwa zvekudzivirira mheni nematombo evhu kwemakore anopfuura 17. Apedza makore gumi nemaviri achichengetedza mheni uye achitsigira kutengeserana kwekunze, achitsigira vatengi vekune dzimwe nyika nekutenga zvinhu kubva kuChina: kuongorora mhando, logistics, uye magwaro ekutumira kunze kwenyika. Bata naJane paLinkedIn, Facebook, kanaX.
Ruzivo rwehunyanzvi rwakasimbiswa zvichienderana nemapepa ekugadzirwa kwefekitori uye mareferensi ataurwa musi wa2026-08-05. Mamwe masosi: E&S Grounding Solutions (IEEE 80 wongororo), Keentel Engineering (gwaro rekugadzira pasi resubstation), nVent ERICO (gwaro rekushandisa), IEEE Houston Region (industrial grounding).
Nguva yekutumira: Nyamavhuvhu-05-2026