Je, PE bomba kuvaa high voltage cable?

2025-08-19

Katika ujenzi na uhandisi wa manispaa, mabomba ya PE hutumika sana katika usambazaji wa maji na mifereji ya maji, mawasiliano na nyanja zingine kutokana na faida zao za upinzani wa kutu, unyumbufu mzuri na ujenzi rahisi. Lakini watumiaji wengi watauliza: Je, mabomba ya PE yanaweza kutumika kwa ulinzi wa nyuzi za nyaya za voltage ya juu? Kama mtoaji wa kitaalamu wa ufumbuzi wa bomba, AD Pipeline itakuchambua kwa undani kutoka kwa mtazamo wa sifa za nyenzo na vipimo vya uhandisi. Upembuzi yakinifu wa mabomba

PE kupitia nyaya za voltage ya juu

PE mabomba (mabomba ya polyethilini) yana sifa nzuri za insulation, na upinzani wao wa kiasi kawaida ni mkubwa kuliko 10 ¬ Ω · cm, ambayo hufanya vizuri katika uwekaji wa nyaya za voltage ya kati na ya chini. Hata hivyo, kwa nyaya za voltage ya juu na voltage iliyokadiriwa ya 10kV na zaidi, mambo yafuatayo yanahitaji kuzingatiwa kwa:

1. Nguvu ya insulation: Nguvu ya kuvunjika kwa masafa ya nguvu ya bomba la kawaida la PE ni takriban 20-30kV / mm, ingawa inakidhi mahitaji ya msingi ya insulation, lakini utoaji wa sehemu unaotokana na operesheni ya muda mrefu ya kebo ya juu-voltage inaweza kuharakisha kuzeeka kwa nyenzo

2. Utulivu wa joto: Joto la matumizi endelevu la bomba la PE kwa ujumla ni -40 ° C ~ 60 ° C. Wakati kebo ya juu-voltage imejaa, kupanda kwa joto kunaweza kuzidi kiwango chake cha uvumilivu, na kusababisha ulemavu wa bomba

3. Mali ya mitambo: Uwekaji wa kebo ya juu-voltage kawaida huambatana na mvuto mkubwa. Ni muhimu kuhakikisha kuwa bomba la PE lina ugumu wa kutosha wa pete (SN8 na madaraja ya juu yanapendekezwa)

Ushauri wa kitaalamu kwa mabomba ya AD

Kama sekta Mgawanyiko wa daraja la Voltage: Mabomba ya nguvu ya PE yenye unene (kama vile mabomba ya PE yaliyobadilishwa ya AD MPP) yanaweza kutumika kwa nyaya chini ya 10kV, na bushings maalum za nguvu

2 zinapendekezwa kwa 20kV na zaidi. Marekebisho ya mazingira ya kuweka: Upimaji wa mgawo wa joto wa udongo unahitajika wakati wa kuweka mazishi ya moja kwa moja ili kuhakikisha kuwa joto la kazi la bomba halizidi kizingiti cha kubuni

3. Mahitaji maalum ya matibabu: Katika mazingira yenye nguvu ya uwanja wa umeme, mabomba ya PE yaliyorekebishwa na formulations maalum yanapaswa kutumika. Mabomba ya PE ya antistatic ya mabomba ya AD yanaweza kudhibitiwa kwa 10-10Ω · cm kwa kuongeza masterbatch ya kaboni nyeusi, kwa ufanisi kuondoa mkusanyiko wa umeme tuli

Tahadhari za utekelezaji wa mradi

1. Uteuzi wa bomba: unapaswa kuwa kwa mujibu wa "Kiwango cha Ubunifu wa Kebo ya Uhandisi wa Nguvu ya Umeme" GB50217, chagua kukidhi kiwango cha GB / T 15558.1 cha bomba la PE, Bomba la AD kutoa φ 110-φ 200mm vipimo vya mabomba ya nguvu ni kupitia jaribio la aina

2. Vipimo vya ujenzi:

- bomba la juu lililozikwa kina cha si chini ya 0.7m, kupitia sehemu inapaswa kusakinishwa ulinzi wa casing

- wakati wa kutumia teknolojia isiyo na mifereji, udhibiti wa kasi ya traction ndani ya 1.5m / min

- kiolesura cha kufanya matibabu ya kuziba, inapendekezwa kutumia AD maalum hot-melt docking mashine ili kuhakikisha ubora wa kulehemu

3. AD Pipeline inawakumbusha watumiaji kwamba mabomba maalum kama vile mabomba ya nguvu ya MPP au mabomba ya nguvu ya CPVC yanapaswa kupendelea katika miradi ya juu ya voltage ya 110kV na juu. Ikiwa una maswali yoyote kuhusu mpango maalum wa mradi, unaweza kuwasiliana na Kituo cha Huduma ya Ufundi cha AD Pipeline ili kupata ufumbuzi uliobinafsishwa ili kuhakikisha uendeshaji salama na thabiti wa mfumo wa usambazaji wa nguvu.


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