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Cov hlau zoo li cas yog cov hlau zoo

Qhov muaj zog tam sim no feem ntau yog hais txog AC380/220V fais fab kab, xws li cov qhov (socket), cov khoom siv teeb pom kev zoo, cua txias, cua sov, cov khoom siv hauv chav ua noj, thiab lwm yam. tsis piav ntau dhau lawm.

Yog li, yuav ua li cas txiav txim qhov sawv ntsug lossis poob ntawm cov khoom siv hluav taws xob muaj zog?

Ib qho, feem ntau siv rau kev kho kom zoo nkauj hauv tsev ntawm lub zog BV hlau feem ntau yog siv rau hauv cov txheej txheem ntawm kev kho kom zoo nkauj hauv tsev.

Muaj ntau ntau hom hlau, feem ntau siv hlau cim yog BVBVR, BVVB, RVV, qhov txawv yog raws li nram no: Ob, hlau chaw tsim tshuaj paus BV hlau yuav ua li cas txheeb xyuas?

1. Kev txheeb xyuas qhov ntev tuaj yeem hais tau, qhov tseem ceeb ntawm txhua qhov hluav taws xob xaim ntawm lub khw tsis txaus 100 meters, txaus siab rau cov xov hluav taws xob ntawm 98 meters saum toj no, tau yog cov chaw tsim khoom ntawm lub siab.Tab sis yog tias koj xav daws cov phaj nrog tus pas ntsuas me ntsis. ntev, tsis tsuas yog teeb meem heev, tab sis kuj cia lub khw tuaj yeem pom koj me me dawb.Yog li, puas muaj ib txoj hauv kev los laij qhov ntev ntawm cov xaim yam tsis muaj dissolving lub disk?

Yog lawm, kev lag luam tam sim no lees paub txoj kev ntsuas, qhov yuam kev yog qhov pib hauv 1 meter:

Txoj kev yog raws li nram no:

A: tus naj npawb ntawm cov xov hlau hauv kab rov tav

B: tus naj npawb ntawm cov xov hlau hauv lub dav hlau ntsug

C Length: qhov ntev ntawm ib qho sab nraud ntawm lub reel mus rau sab hauv ntug ntawm sab hauv

Cov mis laij lej yog raws li hauv qab no: Tus naj npawb ntawm cov xov hlau hauv meters = Tus lej ntawm cov xov hlau A x Tus lej xov tooj B x ntev C x 3.14

Piv txwv li, tus neeg xyuas pib BV2.5, tom qab kev ntsuas thawj zaug, tus naj npawb ntawm A yog 12; Tus naj npawb ntawm B: 16; Qhov ntev ntawm C: 16.5 centimeters, uas yog, 0.165 meters, qhov ntev ntawm cov hlau yuav raug xam raws li: 12 × 16 × 0.165 × 3.14 = 99.47 meters.

Txoj kev no kuj ua haujlwm rau 4 square thiab 6 square xov hlau.

2. Kab txoj kab uas hla

Peb feem ntau hais tias 2.5 square BV kab, feem ntau hu ua ib leeg tub ntxhais xaim lossis tooj liab yas xaim, yog hais txog tooj liab hlau, uas yog, qhov chaw hla ntawm cov tooj liab hlau BV2.5 kab yog 2.5 square millimeters. Tom qab ntawd, raws li cov qauv hauv cheeb tsam ntawm lub voj voog, txoj kab uas hla ntawm cov hlau tooj liab yuav tsum yog li 1.78mm, uas yog lub teb chaws tus qauv.

Qhov ntau npaum li cas? Siv vernier calipers:

Tsis tas li ntawd, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias thaum ntsuas los ntawm ob qho kawg ntawm lub reel, txawm hais tias txoj kab uas hla ntawm lub xaim loj txaus, nws tsis tas txhais tau hais tias tag nrho cov hlau txoj kab uas hla yog txaus. Vim hais tias ntau cov khoom tsis zoo, txij li thaum pib ntawm peb meters tsis muaj teeb meem, tab sis tom qab peb meters pib nyias, mus rau Z tom qab peb meters los yog li ntawd, thiab rov qab mus rau lub cev txoj kab uas hla, qhov no yog vim cov chaw tsim tshuaj paus nyob rau hauv cov txheej txheem ntawm ntau lawm. ntawm tooj liab hlau daim duab ua. Yog li thaum yuav hlau, ntau txhais tes qub yuav nug tus thawj coj: "Puas yog cov hlau rub tawm hauv nruab nrab?" Yog hais tias tus thawj coj ntshai hais tsis tau, lub sijhawm no, yuav tsum tau ceev faj.

3, tooj liab ID

Tus nqi tseem ceeb ntawm cov hlau yog cov hlau conductor, thaum GB yas tooj liab hlau siv cov hlau tsis muaj oxygen raws li tus neeg xyuas pib. Cov xov hlau tsis zoo yuav siv cov hlau uas tsis tshua muaj tooj liab raws li cov khoom siv, xws li tooj dag, galvanized tooj liab, tooj liab-clad tooj liab ( tooj dag npog nrog ib txheej ntawm tooj liab), txawm tias tooj liab-clad aluminium, tooj liab-clad steel, thiab lwm yam. tiv taus ntau dua tooj liab, ua kom muaj cua sov ntau thiab ua rau muaj kev sib tsoo.

Koj qhia li cas?

Feem ntau hais lus, cov xim daj ntau dua, cov ntsiab lus tooj liab tsawg dua. tooj dag yog dawb huv daj, thiab tooj liab yog me ntsis reddish. Koj tuaj yeem siv cov pliers los txiav, saib ntawm ntu, saib seb cov xim zoo ib yam, tsawg kawg nws yooj yim los txiav txim seb nws yog tooj liab qhwv aluminium thiab lwm yam.

4. Kev txheeb xyuas qhov rwb thaiv tsev

Ua ntej saib lub thickness ntawm cov hlau sheath (insulator). Lub teb chaws tus qauv 1.5-6 square xaim yam tsis muaj oxygen tooj liab yuav tsum tau lub sheath thickness ( rwb thaiv tsev thickness) ntawm 0.7 hli. Yog tias nws tuab dhau lawm, lub kaum sab xis yuav tshwm sim los ntawm qhov tsis muaj qhov nruab nrab ntawm lub hauv paus. ; Thiab tom qab ntawd txiav txim siab qhov zoo ntawm cov insulator, cov khoom cuav, nws yog ib qho yooj yim rau tawg cov hlau casing los ntawm rub nws ntawm tes.

5. Kev txheeb xyuas qhov hnyav

Cov xaim zoo zoo feem ntau yog nyob rau hauv qhov ntsuas qhov hnyav. Piv txwv li, qhov hnyav ntawm cov kab BV1.5 feem ntau yog 1.8-1.9kg ib 100m;

Qhov hnyav ntawm BV2.5 kab yog 3-3.1kg ib 100m;

Qhov hnyav ntawm BV4.0 kab yog 4.4-4.6kg ib 100m.

Cov xov hlau tsis zoo tsis hnyav txaus, lossis tsis ntev txaus, lossis cov tub ntxhais tooj liab ntawm cov hlau yog txawv teb chaws.