Kev tiv thaiv xob laim tsim qauv ntawm chav tsev computer network1. Kev tiv thaiv hluav taws xob ncaj qhaLub tsev nyob qhov twg hauv chav tsev computer nyob muaj cov chaw tiv thaiv hluav taws xob sab nraud xws li cov hlua hluav taws xob thiab cov hlua hluav taws xob tiv thaiv, thiab tsis tas yuav tsum muaj cov qauv tsim ntxiv rau kev tiv thaiv hluav taws xob sab nraud. Yog tias tsis muaj kev tiv thaiv hluav taws xob ncaj qha ua ntej, nws yog ib qho tsim nyog yuav tsum tau ua kom muaj kev tiv thaiv hluav taws xob los yog kev tiv thaiv xob laim rau hauv pem teb sab saum toj ntawm chav tsev computer. Yog hais tias chav tsev computer nyob rau hauv qhov chaw qhib, yuav tsum tau nruab ib txoj hlua tiv thaiv hluav taws xob nyob ntawm qhov xwm txheej.2. Kev tiv thaiv xob laim ntawm lub zog hluav taws xob(1) Rau kev tiv thaiv ntawm cov kab hluav taws xob ntawm lub network kev sib koom ua ke, ua ntej ntawm tag nrho cov, cov kab hluav taws xob nkag mus rau hauv chav faib hluav taws xob dav dav ntawm lub kaw lus yuav tsum tau muab tso nrog cov hlau armored cables, thiab ob qho kawg ntawm cov cuab yeej siv hluav taws xob yuav tsum yog. zoo hauv av; Yog hais tias lub cable tsis yog armored txheej, lub cable yog faus los ntawm cov yeeb nkab steel, thiab ob qhov kawg ntawm cov yeeb nkab steel yog grounded, thiab qhov ntev ntawm cov faus av yuav tsum tsis pub tsawg tshaj 15 meters. Cov kab hluav taws xob los ntawm chav faib hluav taws xob dav dav mus rau lub thawv xa hluav taws xob ntawm txhua lub tsev thiab lub thawv xa hluav taws xob rau hauv pem teb ntawm chav tsev computer yuav tsum tau muab tso nrog cov hlau armored cables. Qhov no zoo heev txo qhov muaj peev xwm ntawm induced overvoltage ntawm lub hwj chim kab.(2) Nws yog ib qho tseem ceeb tiv thaiv kev ntsuas rau nruab ib lub zog hluav taws xob ntes hluav taws xob rau ntawm txoj kab hluav taws xob. Raws li cov kev cai ntawm kev tiv thaiv kev tiv thaiv ib cheeb tsam hauv IEC kev tiv thaiv xob laim tshwj xeeb, lub zog hluav taws xob tau muab faib ua peb theem kev tiv thaiv.① Lub thawv tiv thaiv hluav taws xob thawj theem nrog lub peev xwm ntawm 80KA ~ 100KA tuaj yeem ntsia tau rau ntawm qhov hluav taws xob qis ntawm lub tshuab hluav taws xob faib rau hauv chav faib khoom ntawm lub kaw lus.② Nruab ob lub zog hluav taws xob tiv thaiv lub thawv nrog lub peev xwm tam sim no ntawm 60KA ~ 80KA hauv tag nrho lub thawv faib ntawm txhua lub tsev;③ Txhim kho peb-theem hluav taws xob surge arrester nrog lub peev xwm ntawm 20 ~ 40KA ntawm lub hwj chim inlet ntawm cov khoom tseem ceeb (xws li keyboards, servers, UPS, thiab lwm yam) nyob rau hauv lub computer chav;④ Siv lub qhov (socket-type lightning arrester) ntawm lub hwj chim ntawm lub hard disk recorder thiab TV phab ntsa khoom nyob rau hauv lub chaw tswj ntawm lub computer chav tsev.Tag nrho cov hluav taws xob ntes yuav tsum tau zoo hauv av. Thaum xaiv ib tug xob ntes, yuav tsum tau them nyiaj mloog mus rau daim ntawv ntawm lub interface thiab kev cia siab ntawm lub grounding. Cov xov hlau tshwj xeeb hauv av yuav tsum tau teeb tsa hauv qhov chaw tseem ceeb. Kev tiv thaiv xob laim hauv av thiab cov hlua hluav taws xob hauv av yuav tsum tsis txhob sib txuas ua ke, thiab yuav tsum khaws cia kom deb li deb tau thiab sib cais hauv av.3. Kev tiv thaiv xob laim ntawm lub teeb liab(1) Lub network kis tau tus mob tsuas yog siv cov fiber ntau optical thiab twisted khub. Cov fiber ntau optical tsis xav tau kev tiv thaiv xob laim tshwj xeeb, tab sis yog tias cov khoom siv kho qhov muag sab nraum zoov yog nyiaj siv ua haujlwm, cov hlau ntawm optical fiber yuav tsum tau ua hauv av. Lub shielding nyhuv ntawm twisted khub yog tsis zoo, yog li qhov ua tau ntawm induced xob laim ntaus yog kuj loj. Cov kab teeb liab zoo li no yuav tsum tau muab tso rau hauv cov hlau thaiv kev tiv thaiv, thiab cov ntaub thaiv npog hlau trough yuav tsum tau zoo hauv av; nws tseem tuaj yeem muab tso rau hauv cov kav hlau hlau, thiab cov kav hlau hlau yuav tsum tau khaws cia ntawm tag nrho cov kab. Kev sib txuas hluav taws xob, thiab ob qho kawg ntawm cov yeeb nkab hlau yuav tsum tau zoo hauv av.(2) Nws yog ib txoj hauv kev zoo rau nruab ib lub teeb liab teeb liab ntes rau ntawm cov teeb liab kab kom tiv thaiv induction xob laim. Rau lub network kev sib koom ua ke, cov teeb liab tshwj xeeb tiv thaiv hluav taws xob tuaj yeem ntsia tau ua ntej lub network teeb liab kab nkag mus rau WAN router; Cov teeb liab tiv thaiv hluav taws xob nrog RJ45 interfaces tau teeb tsa ntawm lub pob txha caj qaum hloov, lub server tseem ceeb, thiab cov teeb liab kab nkag ntawm txhua ceg hloov pauv thiab cov neeg rau zaub mov feem (xws li RJ45-E100). Kev xaiv ntawm lub teeb liab ntes yuav tsum ua tib zoo xav txog qhov ua haujlwm voltage, kis tus nqi, daim ntawv interface, thiab lwm yam. Tus ntes yog txuas nrog hauv series ntawm cov khoom siv interface ntawm ob qho kawg ntawm kab.① Nruab ib qho chaw nres nkoj RJ45 chaw nres nkoj teeb liab ntawm lub chaw nres nkoj nkag los tiv thaiv lub server.② 24-chaw nres nkoj network hloov pauv tau txuas nrog 24-chaw nres nkoj RJ45 chaw nres nkoj teeb liab ntes kom tsis txhob muaj kev puas tsuaj rau cov khoom siv vim yog xob laim induction los yog electromagnetic cuam tshuam los ntawm kev nkag mus rau hauv cov khub twisted.③ Nruab ib qho chaw nres nkoj RJ11 chaw nres nkoj teeb liab ntes ntawm DDN kab uas tau txais cov cuab yeej los tiv thaiv cov cuab yeej ntawm DDN kab mob siab rau.④ Nruab lub coaxial chaw nres nkoj kav hlau txais xov feeder xob laim ntes nyob rau pem hauv ntej kawg ntawm cov khoom txais satellite los tiv thaiv cov khoom txais.(3) Kev tiv thaiv xob laim rau kev saib xyuas chav tsev① Nruab lub teeb liab teeb liab tiv thaiv hluav taws xob ntawm lub qhov hluav taws xob video kawg ntawm lub hard disk video recorder lossis siv lub khib-mounted video teeb liab tiv thaiv lub thawv, 12 qhov chaw nres nkoj muaj kev tiv thaiv tag nrho thiab yooj yim rau nruab.② Nruab lub teeb liab tswj kev tiv thaiv hluav taws xob (DB-RS485/422) ntawm tus tswj kab nkag kawg ntawm matrix thiab video splitter.③ Cov kab xov tooj ntawm lub khoos phis tawj chav siv lub suab teeb liab hluav taws xob tiv thaiv ntaus ntawv, uas txuas nrog cov kab xov tooj nyob rau sab pem hauv ntej ntawm lub xov tooj, uas yooj yim rau kev teeb tsa thiab kho.④ Txhim kho lub teeb liab tiv thaiv hluav taws xob ntawm qhov chaw nkag ntawm lub teeb liab kab ntawm lub hauv ntej kawg ntawm lub tswb ntsuas kom muaj kev tiv thaiv hluav taws xob zoo rau cov kab teeb liab ntawm lub tswb.Lus Cim: Tag nrho cov cuab yeej tiv thaiv xob laim yuav tsum tau ua kom zoo hauv av. Thaum xaiv cov cuab yeej tiv thaiv xob laim, kev saib xyuas yuav tsum tau them rau daim ntawv ntawm lub interface thiab kev ntseeg siab ntawm cov av. Cov xov hlau tshwj xeeb hauv av yuav tsum tau teeb tsa hauv qhov chaw tseem ceeb. Txhawm rau kom deb li deb tau, cais rau hauv av.4. Equipotential kev sib txuas hauv chav computerNyob rau hauv lub anti-static pem teb ntawm cov khoom siv chav tsev, npaj 40 * 3 tooj liab tuav nyob rau hauv av los tsim ib tug kaw-voj grounding busbar. Hla lub plhaub hlau ntawm lub thawv xa khoom, lub zog hauv av, lub hauv av ntes, lub plhaub txee, cov hlau thaiv cov hlau trough, lub qhov rooj thiab qhov rais, thiab lwm yam los ntawm cov hlau qhov chaw ntawm qhov sib txuas ntawm cov chaw tiv thaiv xob laim thiab lub plhaub ntawm cov cuab yeej siv hauv lub cev, thiab kev sib cais thav duab nyob rau hauv pem teb anti-static. Lub point equipotential grounding mus rau lub busbar. Thiab siv equipotential bonding hlau 4-10mm2 tooj liab tub ntxhais hlau ntsia liaj qhov rooj fastened hlau clip raws li cov khoom sib txuas. Nyob rau tib lub sij hawm, nrhiav lub ntsiab steel bar ntawm lub tsev nyob rau hauv lub computer chav tsev, thiab nws twb paub tseeb hais tias nws yog zoo txuas nrog lub teeb ntes hluav taws xob tom qab kuaj. Siv 14mm galvanized round steel los txuas rau hauv av busbar nrog nws los ntawm kev sib koom ua ke ntawm tooj liab-hlau. Equipotential yog tsim. Lub hom phiaj ntawm kev siv cov phiaj xwm sib koom ua ke yog txhawm rau tshem tawm qhov sib txawv ntawm cov phiaj xwm hauv zos thiab xyuas kom meej tias cov cuab yeej tsis puas los ntawm kev tawm tsam ntawm xob laim.5. Grounding daim phiaj ntau lawm thiab tsimGrounding yog ib qho tseem ceeb tshaj plaws ntawm kev tiv thaiv hluav taws xob. Txawm hais tias nws yog hluav taws xob hluav taws xob ncaj qha lossis hluav taws xob induction, qhov hluav taws xob tam sim no nws thiaj li nkag mus rau hauv av. Yog li ntawd, rau cov ntaub ntawv rhiab heev (lub teeb liab) cov cuab yeej sib txuas lus, nws yog tsis yooj yim sua kom ntseeg tau tsis txhob xob laim yam tsis muaj qhov tsim nyog thiab zoo hauv av. Yog li ntawd, rau lub tsev grounding network nrog grounding resistance> 1Ω, nws yog ib qho tsim nyog yuav tsum tau kho raws li cov kev cai tshwj xeeb los txhim kho kev ntseeg tau ntawm cov av hauv av ntawm chav tsev khoom. Raws li qhov xwm txheej tshwj xeeb, thaj chaw zoo ntawm daim phiaj hauv av thiab cov qauv ntawm cov phiaj xwm hauv av tau txhim kho los ntawm kev tsim cov ntawv sib txawv ntawm cov phiaj xwm hauv av (xws li kab rov tav hauv av thiab ntsug hauv av) raws li lub tsev hauv computer.Thaum siv cov cuab yeej siv hauv av, cov khoom siv hauv av yuav tsum tsis txhob siab dua 1Ω;Thaum siv cov cuab yeej tshwj xeeb hauv av, nws cov nqi hauv av yuav tsum tsis txhob siab dua 4Ω.Cov kev cai tseem ceeb yog raws li nram no:1) Ua ib daim phiaj hauv av nyob ib ncig ntawm lub tsev kom ua tiav cov khoom siv hauv av zoo tshaj plaws nrog cov khoom siv tsawg thiab cov nqi qis dua;2) Grounding kuj tus nqi yuav tsum tau R ≤ 1Ω;3) Lub cev hauv av yuav tsum tau teem caij li 3 ~ 5m deb ntawm lub tsev loj qhov chaw hauv chav computer;4) Lub cev kab rov tav thiab ntsug hauv av yuav tsum tau faus txog 0.8m hauv av, lub cev hauv av ntsug yuav tsum yog 2.5m ntev, thiab lub cev ntsug hauv av yuav tsum tau teem txhua 3 ~ 5m. Lub cev hauv av yog 50 × 5mm kub-dip galvanized ca steel;5) Thaum cov av mesh yog welded, qhov chaw vuam yuav tsum yog ≥6 npaug ntawm qhov chaw sib cuag, thiab qhov vuam taw tes yuav tsum tau kho nrog kev tiv thaiv corrosion thiab tiv thaiv xeb;6) Cov nets nyob rau hauv ntau qhov chaw yuav tsum tau welded nrog steel tuav ntawm ntau lub tsev kab ntawm 0.6 ~ 0.8m hauv qab av, thiab kho nrog anti-corrosion thiab anti-xeb kho;7) Thaum cov av conductivity tsis zoo, cov txheej txheem ntawm nteg tiv thaiv tus neeg sawv cev yuav tsum tau saws los ua kom cov av tiv thaiv ≤1Ω;8) Cov khoom siv rov qab yuav tsum yog cov av nplaum tshiab nrog cov khoom siv hluav taws xob zoo dua;9) Multi-point welding nrog lub tsev lub hauv paus hauv av network, thiab khaws cia cov ntsiab lus hauv av.Cov saum toj no yog ib txwm pheej yig thiab tswv yim grounding txoj kev. Raws li qhov xwm txheej tiag tiag, cov khoom siv hauv av kuj tseem tuaj yeem siv cov cuab yeej siv hauv av tshiab, xws li kev saib xyuas tsis muaj electrolytic ion grounding system, low-resistance grounding module, long-term copper-clad steel grounding rod thiab hais txog.

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Post lub sij hawm: Aug-10-2022