Kungani Intambo ye-BV Efakwe Umswakama ye-PVC Iwumgogodla Wokuxhumeka Kwesiphetho Okuphephile

Isigaba 1: Iyini i-BV Wire? Incazelo Ejwayelekile

Ukwakhiwa okuvamile:

• Umqhubi: Ithusi eliqinile elihlanganisiwe noma elihlanganisiwe (Isigaba 1 noma Isigaba 2, ngokusho kwe-IEC 60228)

• Ukushisa: Uhlobo lwe-PVC A, B, noma C (kuye ngokuthi izinga lokushisa lingakanani kanye nokusetshenziswa kwalo)

Izingxenye ezivamile:0.5 mm² kuya ku-10 mm² (okubaluleke kakhulu ku- Ibhulokhi Yesiphetho ukuxhumana ngaphakathi kwamaphaneli okulawula namabhokisi okuxhumanisa)

Isilinganiso se-voltage:450/750 V (evame kakhulu) noma 300/500 V

Isilinganiso sokushisa:Ngokuvamile -15°C kuya ku-+70°C kwi-PVC ejwayelekile (amazinga akhethekile ayatholakala: -40°C kuya ku-+105°C)

Ngokungafani nezintambo eziguquguqukayo (i-RVV, i-RV), intambo ye-BV ine-ukujiya, ukuqina kwe-PVCkanye nomqhubi oqinile. Lokhu kuyenza ifaneleke kakhulu:

• Izintambo eziqinile ezihlala njalo ngaphakathi kwamaphaneli kagesi

• Ukufakwa kwezintambo zamabhokisi okusabalalisa, ama-switchboard, kanye nezinto zasendlini ezilungisiwe

• Ukuxhumeka kumabhulokhi esiphetho sohlobo lwesikulufu kanye nohlobo lwesintwasahlobo lapho kudingeka khona ama-conductor aqinile noma aboshwe ngentambo

  Isigaba 2: Kungani i-PVC - Futhi Kungani Ikhwalithi ye-PVC Ibalulekile

  Cishe ama-60% okwehluleka kwekhebula okubangelwa izinkinga zokuvala ungqimba lwe-insulation empeleni kungenxaukwakheka kwe-PVC okungekuhle, hhayi ithusi. Nakhu okufanele kuhlolwe ngabathengi abangochwepheshe:

  2.1 Okuqukethwe kwe-plasticizer kanye nokufuduka
  I-PVC esezingeni eliphansi iqukethe ama-plasticizer amaningi. Ngokuhamba kwesikhathi, ama-plasticizer aya ezindlini zama-terminal block (ikakhulukazi i-PA66 noma i-PC), okubangela ukuqhekeka noma ukuthamba kwe-terminal block. I-Yueqing Gaopeng Electric ihlole izintambo ze-BV ezivela kubahlinzeki abangaphezu kuka-40 - singakutshela:ukufuduka akubonakali kuze kube yilapho kubhubhisa iphaneli.

  2.2 Inkomba ye-oxygen (ukuvinjelwa komlilo)
  I-PVC ejwayelekile inenkomba ye-oxygen engu-26–30%. Intambo ye-BV esezingeni eliphezulu kumele iphumelele ukuhlolwa komlilo oqondile kwe-IEC 60332-1. Ezivivinyweni zethu zelebhu, i-PVC embi iyaqhubeka nokusha ngemva kokususwa komlilo - ingozi yomlilo oqondile.

  2.3 Ukumelana nokuguga okushisa
  Ngokusho kwe-IEC 60227, ukufakelwa kwe-PVC kumele kumelane nokuhlolwa kokuguga kwezinsuku eziyi-7 ku-80°C (ngentambo elinganiswe ngo-70°C). I-PVC engaphansi kwekhwalithi iyaqina futhi iqhekeke esikhathini esingaphansi kwezinsuku ezi-3 ngaphansi kwesimo esifanayo, okuholela kuma-short circuits.

  2.4 Ukuhlolwa kokugoba okubandayo
  Ukuze ithunyelwe eYurophu noma eNyakatho Melika, ucingo lwe-BV kufanele ludlule ukugoba okubandayo okungu--15°C (noma -25°C kumagreyidi akhethekile). I-PVC eshibhile iba buthakathaka njengengilazi ngaphansi kuka-0°C - akunakwenzeka ukuyifaka ngokuphephile ebusika noma ezindaweni ezibandayo.

  Isigaba 3: Indlela I-BV Wire Esebenzisana Ngayo Nezithili Zezithili - Umbono Wobunjiniyela

  Lokhu kubalulekile kunoma yimuphi umthengi othenga izintambo kanye nama-terminal (ngisho nakubahlinzeki abahlukene). Intambo ye-BV engalungile ingabangela ukwehluleka kwensimu ye-terminal block:

  3.1 Ukuhambisana kwekilasi lomqhubi

  • Ama-terminal amaningi ohlobo lwesikulufo (isb., i-Gaopeng T-Series yethu) amukela kokubili ama-conductor aqinile (i-Class 1) kanye nama-stranded (i-Class 2).

  • Ama-terminals anjengentwasahlobo athanda i-Class 5 egobile noma eguquguqukayo - kodwa izintambo eziningi ze-BV ziqinile.

  • Isibonelo sokungafani:Ukusebenzisa i-BV eqinile engu-4mm² esigungwini se-spring-clamp esenzelwe ucingo olunezintambo ezincane kuholela ekubambeni nasekudonseni okungathembekile.

  3.2 Ubude bokuhlubula kanye nokunemba
  Ubukhulu bokushintshwa kwe-PVC buyahlukahluka. Intambo ejwayelekile ye-BV ngokusho kwe-GB/T 5023.3 inobukhulu bokushintshwa obuchaziwe (isb., 0.8mm ku-2.5mm²). Kodwa-ke, izintambo eziningi ezishibhile zine-insulation encane noma engalingani. Umphumela: kungaba ukushintshwa ngokweqile (ukudalula ithusi eliningi kakhulu, okubangela imijikelezo emifushane) noma ukushintshwa ngaphansi (i-PVC ebambeke ngaphakathi kwetheminali, okubangela ukumelana okuphezulu).

  3.3 Umqhubi omise okwesiyingi uma kuqhathaniswa nowesigaba
  Intambo ye-BV esezingeni eliphezulu inomqhubi oyindilinga ngempela. I-BV esezingeni eliphansi isebenzisa ithusi eligoqwe kabusha elinobubanzi obungalingani, elingakwazi ukuhlala kahle ngaphakathi kwejoka lokubopha lebhulokhi yesiphelo. Lokhu kudalaoxhumana naye endaweniesikhundleni sokuxhumana ngomugqa – ukwanda okungu-300% kokumelana kokuxhumana.