No ke aha ʻo ka Uea BV PVC-Insulated ke kua o nā pilina terminal palekana

Māhele 1: He aha ka Uea BV? Wehewehena Maʻamau

Ke kūkulu ʻana maʻamau:

• Alakaʻi: Keleawe paʻa a wili paha i hoʻopaʻa ʻia (Papa 1 a i ʻole Papa 2, e like me IEC 60228)

• Palekana: ʻAno PVC A, B, a i ʻole C (e pili ana i ka helu mahana a me ka noi)

Nā ʻāpana kea maʻamau:0.5 mm² a i 10 mm² (ʻo ka mea pili loa no Poloka Kikowaena nā pilina i loko o nā panela hoʻomalu a me nā pahu hui)

Ka helu uila:450/750 V (ka mea maʻamau) a i ʻole 300/500 V

Ka helu mahana:ʻO ka maʻamau -15°C a i +70°C no ka PVC maʻamau (loaʻa nā māka kūikawā: -40°C a i +105°C)

ʻAʻole e like me nā uea palupalu (RVV, RV), loaʻa i ka uea BV kahika pale PVC mānoanoa a paʻakikī hoʻia me kahi alakaʻi ʻoi aku ka paʻakikī. ʻO kēia ka mea kūpono no:

• Uea paʻa mau i loko o nā panela uila

• Ka uea ʻana o nā pahu hāʻawi, nā papa kuapo, a me nā lako paʻa o ka hale

• Nā pilina i nā poloka terminal ʻano wili a me ke ʻano puna kahi e pono ai nā alakaʻi paʻa a i ʻole nā ​​​​​​mea hoʻopaʻa ʻia

  Māhele 2: No ke aha ʻo PVC - A no ke aha he mea nui ka PVC maikaʻi

  Ma kahi o 60% o nā hemahema o ke kaula i hoʻopili ʻia i nā pilikia insulation ma muli maoli nō ia oka hoʻonohonoho PVC maikaʻi ʻole, ʻaʻole ke keleawe. Eia nā mea a nā mea kūʻai loea e nānā ai:

  2.1 ʻO ka ʻike a me ka neʻe ʻana o ka plasticizer
  Loaʻa i ka PVC haʻahaʻa ke ʻano he nui nā plasticizers. I ka hala ʻana o ka manawa, neʻe nā plasticizers i loko o nā hale poloka terminal (ʻoi aku hoʻi ʻo PA66 a i ʻole PC), e hana ana i ka haki a palupalu paha o ka poloka terminal. Ua hoʻāʻo ʻo Yueqing Gaopeng Electric i nā uea BV mai 40+ mau mea hoʻolako - hiki iā mākou ke haʻi iā ʻoe:ʻIke ʻole ʻia ka neʻe ʻana a hiki i ka wā e luku ai i kahi panela.

  2.2 ʻIkepili oxygen (pale ʻana i ke ahi)
  ʻO ka PVC maʻamau he 26-30% ka helu oxygen. Pono ka uea BV maikaʻi e hala i ka hoʻāʻo lapalapa kū pololei IEC 60332-1. I kā mākou mau hoʻokolohua lab ponoʻī, hoʻomau ka PVC maikaʻi ʻole i ka ʻā ʻana ma hope o ka wehe ʻia ʻana o ka lapalapa - he pilikia ahi pololei.

  2.3 Ke kūpaʻa ʻana i ka wā ʻelemakule
  Wahi a IEC 60227, pono ka pale PVC e kū i kahi hoʻāʻo ʻelemakule 7 lā ma 80°C (no ka uea i helu ʻia he 70°C). ʻO ka PVC ma lalo o ke kūlana maʻamau e paʻakikī a māwae i loko o 3 mau lā ma lalo o ke kūlana like, e alakaʻi ana i nā kaapuni pōkole.

  2.4 Hoʻāʻo kūlou anu
  No ka hoʻokuʻu aku i ʻEulopa a i ʻAmelika ʻĀkau paha, pono e hala ka uea BV i kahi kūlou anu -15°C (a i ʻole -25°C no nā papa kūikawā). Lilo ka PVC makepono i mea palupalu e like me ke aniani ma lalo o 0°C - hiki ʻole ke hoʻokomo palekana i ka hoʻoilo a i ʻole ke anuanu.

  Māhele 3: Pehea e launa pū ai ka Uea BV me nā Poloka Terminal - Nānā ʻenekinia

  He mea koʻikoʻi kēia no kekahi mea kūʻai e kūʻai ana i nā uea a me nā kikowaena (ʻoiai mai nā mea hoʻolako like ʻole). Hiki i ka uea BV hewa ke hana i nā hemahema o ke kahua poloka terminal:

  3.1 Ka kūlike o ka papa alakaʻi

  • ʻO ka hapa nui o nā kikowaena ʻano wili (e laʻa, kā mākou Gaopeng T-Series) e ʻae i nā alakaʻi paʻa (Class 1) a me nā alakaʻi stranded (Class 2).

  • Makemake nā kikowaena ʻano puna i ka Papa 5 i stranded a i ʻole ka maʻalahi - akā he nui nā uea BV i paʻa.

  • Laʻana kūlike ʻole:ʻO ka hoʻohana ʻana i ka BV 4mm² paʻa i loko o kahi kikowaena spring-clamp i hoʻolālā ʻia no ka uea kaula maikaʻi e alakaʻi ai i ka hoʻopaʻa ʻana a me ka huki ʻana me ka hilinaʻi ʻole.

  3.2 Ka lōʻihi a me ka pololei o ke kaha ʻana
  ʻOkoʻa ka mānoanoa o ka pale PVC. Loaʻa i ka uea BV maʻamau e like me GB/T 5023.3 kahi mānoanoa pale i ho'ākāka ʻia (e laʻa, 0.8mm no 2.5mm²). Eia nō naʻe, he lahilahi a ʻaʻole like paha ka pale ʻana o nā uea haʻahaʻa. Hopena: ʻo ka over-stripping (hōʻike nui i ke keleawe, e hana ana i nā kaapuni pōkole) a i ʻole ka under-stripping (ua paʻa ka PVC i loko o ke kikowaena, e hana ana i ke kū'ē kiʻekiʻe).

  3.3 Alakaʻi pōʻai vs. alakaʻi ʻāpana
  He alakaʻi poepoe maoli ko ka uea BV maikaʻi. Hoʻohana ka BV maikaʻi ʻole i ke keleawe i ʻōwili hou ʻia me ke anawaena like ʻole, ʻaʻole hiki ke noho pono i loko o ka ʻauamo paʻa o ka poloka terminal. Hoʻokumu kēia i kahoʻopili kikoma kahi o ka hoʻopili ʻana o ka laina - he 300% ka piʻi ʻana o ke kū'ē ʻana o ka hoʻopili ʻana.