He aha te Waea BV Whakamarumaru-PVC te Tuara o ngā Hononga Pūrua Haumaru

Wāhanga 1: He aha te Waea BV? Whakamāramatanga Paerewa

Hanganga noa:

• Kaiārahi: Parahi totoka, parahi rānei kua whakawerahia (Akomanga 1, Akomanga 2 rānei, e ai ki te IEC 60228)

• Ārai: PVC momo A, B, C rānei (i runga i te whakatauranga pāmahana me te whakamahinga)

Ngā wāhanga whakawhiti noa:0.5 mm² ki te 10 mm² (te mea tino tika mō Poraka Whakamutunga ngā hononga i roto i ngā papa whakahaere me ngā pouaka hononga)

Whakatauranga ngaohiko:450/750 V (te mea tino noa) 300/500 V rānei

Whakatauranga pāmahana:Ko te tikanga -15°C ki te +70°C mō te PVC paerewa (e wātea ana ngā momo motuhake: -40°C ki te +105°C)

He rerekē ngā waea ngāwari (RVV, RV), hete whakamarumaru PVC matotoru, mārō akeme te kaiārahi pakari ake. Nā tēnei ka tino pai mō:

• Waea pumau tuturu i roto i ngā panera hiko

• Te waea i ngā pouaka tohatoha, ngā papa whakawhiti, me ngā taputapu pumau o te whare

• Ngā hononga ki ngā poraka mutunga momo-tīwiri me te momo-puna ina hiahiatia ngā ara iahiko totoka, ara iahiko rānei kua herea.

  Wāhanga 2: He aha te PVC – Me te aha te mea nui o te PVC kounga

  Tata ki te 60% o ngā pakaru o te taura e pā ana ki ngā raruraru whakamahana, ko te mea pono hehanganga PVC ngoikore, ehara i te parahi. Anei ngā mea me tirotiro e ngā kaihoko ngaio:

  2.1 Te ihirangi me te hekenga o te kirihou
  He nui rawa ngā mea whakapūmau kirihou kei roto i te PVC kounga iti. I roto i te wā, ka neke ngā mea whakapūmau kirihou ki roto i ngā whare poraka pito (ina koa ko te PA66, PC rānei), ka pakaru, ka ngawari rānei te poraka pito. Kua whakamatauria e Yueqing Gaopeng Electric ngā waea BV mai i te 40+ ngā kaiwhakarato – ka taea e mātou te kī atu ki a koe:Kāore e kitea te hekenga kia whakangaromia rā anō tētahi panera.

  2.2 Taupū hāora (ātete mura)
  Ko te taupū hāora o te PVC paerewa he 26–30%. Me tutuki i te waea BV kounga te whakamātautau mura poutū IEC 60332-1. I roto i ā mātou ake whakamātautau taiwhanga, ka mura tonu te PVC ngoikore i muri i te tangohanga o te mura – he mōrearea ahi tika tēnei.

  2.3 Ātete ki te koroheketanga wera
  E ai ki te IEC 60227, me tu te whakamarumaru PVC i roto i te whakamātautau pakeketanga 7-rā i te 80°C (mō te waea kua whakatauria he 70°C). Ka whakapakeke, ka pakaru hoki te PVC iti iho i te 3 rā i raro i te āhua kotahi, ka hua ake he ara iahiko poto.

  2.4 Whakamātautau piko makariri
  Mō te kaweake ki Ūropi, ki Amerika Te Raki rānei, me whiti te waea BV i te piko makariri -15°C (me te -25°C rānei mō ngā momo motuhake). Ka pakarukaru te PVC iti te utu pērā i te karāhe i raro i te 0°C – kāore e taea te tāuta haumaru i te takurua, i ngā āhuarangi makariri rānei.

  Wāhanga 3: Te Taunekeneke o te Waea BV ki ngā Poraka Whakamutunga – Tirohanga Hangarau

  He mea nui tēnei mō te kaihoko e hoko ana i ngā waea me ngā pūrua (ahakoa mai i ngā kaiwhakarato rerekē). Ka taea e te waea BV hē te whakararu i te mara poraka pūrua:

  3.1 Hototahitanga o te akomanga arataki

  • Ko te nuinga o ngā pūnga momo-tīwiri (hei tauira, ko tā mātou Gaopeng T-Series) ka whakaaetia ngā ara iahiko totoka (Akomanga 1) me ngā ara iahiko pae (Akomanga 2).

  • Ko ngā waea momo-puna e pai ake ana ki ngā waea aho, ngāwari rānei o te Akomanga 5 – engari he maha ngā waea BV he totoka.

  • Tauira kore ōrite:Mā te whakamahi i te totoka BV 4mm² i roto i te pito rawhi puna i hangaia mō te waea miro-matatini ka kore e pono te rawhi me te kukume.

  3.2 Te roa me te tika o te tango
  He rerekē te matotoru o te ārai PVC. He matotoru ārai kua tautuhia te waea BV paerewa e ai ki te GB/T 5023.3 (hei tauira, 0.8mm mō te 2.5mm²). Heoi, he maha ngā waea iti te utu he angiangi, he koretake rānei te ārai. Ko te hua: he nui rawa te tango (he nui rawa te parahi e whakaatuhia ana, ka puta he ara iahiko poto) he iti rānei te tango (ka mau te PVC i roto i te pito, ka puta he ātete nui).

  3.3 Arataki porowhita, arataki āhua-wāhanga rānei
  He tino porowhita te ara iahiko o te waea BV kounga teitei. Ko te BV kounga iti ka whakamahi i te parahi hurihuri anō me te diameter kāore i te ōrite, e kore e taea te whakanoho tika ki roto i te ioka whakapūmau o te poraka pito. Ka hangaia e tēneiwhakapā pūwāhihei utu mō te pa ki te raina – he pikinga 300% o te ātete pa.