Visokonapetostna žica, kako preveriti visokonapetostne žice

Visokonapetostne žice vozila igrajo zelo pomembno vlogo za napajalno enoto, saj prenašajo električne impulze iz tuljave na svečko. Omeniti je treba, da je intenzivnost in pravočasnost vnetja zmesi zrak-goriva odvisna od učinkovitosti in servisiranosti žic, in s tem neprekinjenega in pravilnega delovanja motorja. V nasprotju z njegovo preprostostjo imajo žice veliko raznolikih "ran" in lahko svojim lastniku zagotovijo veliko težav, ki bo eno druga ali druga odražala na žepu in živcih. O tem v članku.

Visokonapetostne vžigalne žice, katere naloge in zahteve so dodeljene visokonapetostnim žigam

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Prvič, visokonapetostne žice morajo biti dovolj odporne na agresivni medij v prostoru podskupin.

Drugič, vzdržati morajo temperaturo od -60 stopinj Celzija na +240 stopinj in ne smejo izgubiti svojih prevodnih lastnosti.

Tretjič, potrebno je, da žice preprečujejo trenutno uhajanje pred priključkom na konice sveč. Okvarjena, bodisi nizko kakovostne žice lahko izhodi določene avtomobilske naprave, na primer elektronski sistem, kot tudi otežiti delovanje motorja, zaradi katere bo elektrarna zagnala "Troit".

Okvarjeno ožičenje, ki ogroža avto

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Povečana odpornost ali trenutna uhajanje vodi do zmanjšanja moči impulza in posledično - ali upočasnitev vžiga, ali na "bledenje" in "troenement" motorja pri povišanih revs, ali sploh do odsotnosti Spark, še posebej, če je majhna kontaminacija na svečah. Kot rezultat, dinamika pade, toksičnost izpušnih plinov in porabe goriva (štiri do sedem odstotkov) narašča.

Vžigalne žice, večje okvare

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Glavni problem, povezan z visokonapetostjo ožičenja, je problem vžigalnih sveč zaradi nezadostne napetosti. Vzroki za takšno okvaro:

  1. Slab stik ali odsotnost med visokonapetostjo in svečami.
  2. Zgornja odpornost na žico.
  3. Uhajanje napetosti kot posledica slabe kakovosti izolacije.
  4. Vpenjalne kabli izolacija.

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V raztrgani visokonapetostni ožičenju se izvede električni izpust, kjer pride do izgube napetosti. Posledica tega je, da se elektromagnetni impulz napaja svečo in ne na nazivno napetost. Poškodovana visokonapetostna napeljava lahko povzroči nepravilno delovanje številnih avtomobilskih senzorjev, ki jih povzročajo operacije motorja, saj se vžig v jeklenku izvede s potrdilom, in ni vedno sposoben delati, zaradi česar ne redko ne uspe sinhronizirajte jeklenke.

Kako izbrati kakovostne visoko kakovostne visokonapetostne žice, da bodite pozorni na

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Pri nakupu visokonapetostnih žic, ne le njihovo blagovno znamko in podjetje, je treba upoštevati. Posebno pozornost je treba nameniti modelu motorja. In to je posledica dejstva, da proizvajalec pri načrtovanju vozil določa posebne standarde žic, ki jih je treba upoštevati pri zamenjavi ali popravilu.

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Eno od meril za izbiro je napetost, na katero se izračuna kabel. Če žica ne stoji na napetosti, se lahko pojavi okvara v izolaciji, zaradi česar žica ne uspe. Poleg tega je treba pri izbiri, je treba upoštevati material, iz katerega je kabel narejen. Žica mora imeti optimalno prilagodljivost, pa tudi odporna na visoke temperature in vplive kemično aktivnih materialov.

Visokonapetostno multimeter, kaj je ta naprava in kako deluje

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Večmeter je univerzalna naprava za meritve (upor, tok, napetost, preverjanje žice za razgradnjo). Za vsako od teh meritev se lahko nanesejo posebna orodja, in sicer voltmeter, ampermeter, ohmmeter. Za merjenje napetosti se uporablja voltter, se toka trdnost meri z ampermetrom, in omemeter se uporablja za merjenje upornosti, vendar je univerzalna naprava za merjenje upornosti, toka in napetosti je multimeter, načelo, ki je za primerjavo referenčnega signala z vhodnim signalom. V središču multimetra digitalnega tipa - dvojni integracijski ADC.

Kako preveriti vizualni pregled žic, da bi pozorni na

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Prvič, preverite visokonapetostne žice za prisotnost / odsotnost vidnih poškodb (zlomi, razpoke, in tako naprej). Potem se morate prepričati, da ni nobene okvare, ki se določi tudi brez uporabe instrumentov. Dovolj je, da pogledamo v PUMSOOM prostora v temi - v prisotnosti okvare procesa delovanja elektrarne na visokonapetostni žici, bo iskra vidna. Poleg tega lahko preverite visokonapetostnega kabla z uporabo običajne žice, ki mora biti oborožena s kosom žice, ki je na obeh straneh. Nadalje, v temi je en konec zaprt na telesu avtomobila, to je na "masni", in preživimo celoten obseg drugega kot celoten obod visokonapetostnih žic, kot tudi kape, spoji, in tako naprej. Na mestu okvare je iskra.

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Kako preveriti visokonapetostne žice z uporabo multimetra

  1. Vklopite način modula.
  2. Od sveča 1. cilindra odstranite visokonapetostno žico in nato iz vžigalne tuljave.
  3. Na konce žice priključite elektrode multimetra in si oglejte pričevanje.

Odpor v dobrih žicah se mora spreminjati v mejah 3,5-10 COM, odvisno od vrste žic. Podatki o uporu so najpogosteje označeni z izolacijo žic.

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PROFI nasvet, ki jih je treba upoštevati pri preverjanju visokonapetostnih žic

Potrebno je preveriti vsak kabel. Pomembno je, da se razprši med njimi - 2-4 koma. Če je razpršitev velike, je treba žice zamenjati. Mimogrede, žice se spremenijo v kompleksu, to je vse skupaj.

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