Cim nyob rau hauv electrics L thiab N: hom nyob ntawm tej, lawv cov yam ntxwv

Ntiaj teb no manufacturers ntawm khoom vaj khoom tsev nyob rau hauv lub rooj sib txoos ntawm cov khoom siv xim-coded nyob ntawm tej installation. Nws yog ib tug los nyob rau hauv hluav taws xob L thiab N. Vim cov xim nruj me ntsis hais tseg, lub wizard yuav sai sai txiav txim uas lub conductors yog theem, pes tsawg los yog av. Qhov no yog ib qho tseem ceeb thaum koj txuas los yog rho cov khoom los ntawm lub hwj huam mov.

hom ntawm cables

Thaum koj txuas hluav taws xob khoom, installation ntawm ntau yam systems yuav tsis ua tsis muaj tshwj xeeb conductors. Lawv yog ua los ntawm txhuas los yog tooj liab. Cov ntaub ntawv ua hluav taws xob zoo heev.

Tseem Ceeb! Aluminium nyob ntawm tej yuav tsum tau kev cob cog rua nrog txhuas xwb. Lawv yog cov sib active. Yog hais tias lawv muaj kev cob cog rau cov tooj liab, rau tam sim no hloov mus rau lwm Circuit Court yuav sai sai ua kom puas. Aluminium nyob ntawm tej yog kev cob cog rua feem ntau nrog lub ceev thiab bolts. Tooj - los ntawm terminals. Nws yog tsim nyog sau cia hais tias lub caij nyoog kawg no hom ntawm neeg xyuas pib muaj ib tug tseem ceeb drawback - nws yog sai oxidized li raug tus kab mob rau saum huab cua.

Board nyob rau hauv cov ntaub ntawv ntawm qhov chaw ntawm tshwm sim ntawm oxidation tam sim no tsis tu tsis tseg kom dhau: los lub mov ntawm hluav taws xob, cov hlau yuav tsum tau muab cais tawm ntawm lwm influences los ntawm kev siv hluav taws xob kab xev.

kev faib nyob ntawm tej

Cov neeg xyuas pib muab ib tug uninsulated los yog ib tug los yog ntau tshaj insulated conductors. Qhov thib ob hom ntawm conductors coated nrog ib tug tshwj xeeb uas tsis-metallic plhaub. Qhov no tej zaum yuav ua tau ib tug insulating kab xev winding los yog braiding ntawm lub fibrous cov ntaub ntawv uas. Liab qab nyob ntawm tej tsis muaj kev tiv thaiv coatings. Lawv yog siv nyob rau hauv kev tsim kho ntawm lub hwj chim kab.

Raws li cov foregoing, peb xaus uas cov nyob ntawm tej no yog:

• kev tiv thaiv;
• kev tiv thaiv;
• hwj chim;
• mounting.

Lawv yuav tsum tau siv raws nraim li. Lub slightest txawv los ntawm cov kev khiav hauj lwm uas yuav tsum tau ua rau breakage ntawm lub hwj huam mov. Raws li ib tug tshwm sim, Circuit Court hluav taws kub tshwm sim.

Los theem, pes tsawg thiab av ntawm tej

Thaum lub mounting ntawm hluav taws xob tes hauj lwm lub hom phiaj domestic thiab muaj kev siv insulated cables. Lawv muaj xws li ib tug xov tooj ntawm conductors. Txhua yam ntawm lawv yog tab xim nyob rau hauv lub tsim nyog xim. Los lauj, L, N nyob rau hauv hluav taws xob kom tsis txhob lub sij hawm ntawm installation, thiab yog hais tias tsim nyog kho kev ua hauj lwm.

Piav rau hauv qab no nyob rau hauv hluav taws xob los L thiab N siab raws li qhov uas yuav tsum tau GOST 50462 thiab yog siv nyob rau hauv hluav taws xob sib nyob rau hauv uas lub voltage nce mus txog 1000 V. Lawv tau lub earthed nruab nrab. Qhov no pab pawg neeg no muaj xws li tag nrho cov hluav taws xob khoom ntawm thaj, chaw ua hauj lwm vaj tse, coj mus muag chaw. Yuav ua li cas xim coding theem L, zero, N thiab av yuav tsum muaj cai thaum txhim kho hluav taws xob tes hauj lwm? Wb fim nws.

cov theem conductors

Lub AC muaj conductors uas energized. Lawv hu ua cov theem conductors. Txhais los ntawm lus Askiv, lub sij hawm "theem" txhais tau tias ib tug "kab", "active hlau" los yog "nyob hlau".

Kov ib tug neeg los ntawm cov bared los ntawm rwb thaiv tsev theem pib yuav ua nyob rau hauv loj heev kev kub nyhiab los yog tuag taus. Ua li cas nws txhais li cas rau cov hluav taws xob los L thiab N? Hluav taws xob cov schematic theem nyob ntawm tej cim lub Latin tsab ntawv «L», thiab nyob rau hauv lub multi-core cable rwb thaiv tsev ntawm cov theem pib yog xim nyob rau hauv ib tug ntawm cov nram qab no xim:

• dawb;
• dub;
• xim av;
• liab.

Pom zoo! Yog hais tias yog vim li cas ib tug electrician xav lub veracity ntawm cov ntaub ntawv uas qhia txog xim-coded cable hlau los mus txiav txim nyob rau hauv voltage nyob ntawm tej yuav tsum tau siv tsawg-voltage voltage qhia.

zero taw

Cov hluav taws xob nyob ntawm tej uas muab faib ua peb pawg:

• nruab nrab neeg xyuas pib.
• Tiv pes tsawg (lub ntiaj teb) conductors.
• nruab nrab neeg xyuas pib, sib txuas tus tiv thaiv thiab ua hauj lwm muaj nuj nqi.

Yuav ua li cas yog lub los ntawm hluav taws xob nyob ntawm tej L thiab N? Nruab nrab network los yog nruab nrab neeg xyuas pib circuits nyob rau hauv hluav taws xob chains txhais Latin tsab ntawv «N». Xoom cables conductors muaj cov nram qab xim:

• xiav xim rau tag nrho cov ntev tsis muaj inclusions;
• xiav xim rau tag nrho cov qhov ntev ntawm cov leeg tsis muaj ntxiv inclusions.

Nws txhais li cas L, N thiab PE nyob rau hauv hluav taws xob engineering? PE (N-RE) - tus tiv thaiv neeg xyuas pib, uas yog tag nrho ntev ntawm lub nyob ntawm tej muaj nyob rau hauv lub cable kab yog pleev xim rau nrog alternating daj thiab ntsuab.

Qhov thib peb qeb ntawm xoom conductors (PUAS MUAJ CUAB KAV-hlau), uas muab cov ua hauj lwm thiab kev tiv thaiv kev khiav dej num, muaj ib cov xim cim hluav taws xob (L thiab N). Yog dawb lias xiav, thiab qhov xaus ntawm lub kev twb kev txuas mus rau lub daj-ntsuab kab txaij.

Qhov yuav tsum tau kom paub tseeb lub npav

Los lauj, L, N nyob rau hauv qhov hluav taws xob mounting hluav taws xob tes hauj lwm - ib tug tseem ceeb kev nthuav dav. Yuav ua li cas mus saib hauv lub correctness ntawm cov xim coding? Ua li no, koj yuav tau siv qhov taw qhia ntswj ntsia hlau.

Yuav kom txiav txim uas lub conductors yog ib theem thiab ib tug pes tsawg nrog rau cov kev pab los ntawm ib tug ntswj ntsia hlau qhov taw qhia, koj yuav tsum mus kov mus sting liab qab daim hlau. Yog hais tias lub LED teeb, ces muaj ib hu mus rau lub theem neeg xyuas pib. Tom qab kov ib tug ntswj ntsia hlau rau hauv nruab nrab neeg xyuas pib ntawm lub luminous cov neeg yuav tsis tau.

Qhov tseem ceeb ntawm cov xim-coded conductors thiab nruj kev ua raws li cov kev cai ntawm txoj kev siv yuav txo tau lub sij hawm ntawm installation thiab hluav taws xob yuam kev search, thaum uas raug nqi ntau cov yooj yim uas yuav tsum tau ua rau txoj kev pheej hmoo rau kev kho mob.