2024-11-19
1. DC khanyetso
Khanyetso ea DC ea conductive core ea ho qetathapo ea photovoltaicho 20℃ ha e kholo ho feta 5.09Ω/km.
2. Teko ea motlakase oa ho qoelisoa metsing
Mohala o feliloeng (20m) o qoelisoa ka metsing (20±5)℃ bakeng sa 1h ebe o kenngoa tekong ea 5min voltage (AC 6.5kV kapa DC 15kV) ntle le ho senyeha.
3. Nako e telele ea ho hanyetsa motlakase oa DC
Sampole e bolelele ba 5m mme e behiloe ka metsing a hloekisitsoeng a nang le 3% sodium chloride (NaCl) ho (85±2)℃ bakeng sa (240±2) h, 'me lipheletso ka bobeli li pepesitsoe holim'a metsi bakeng sa 30cm. Motlakase oa DC oa 0.9kV o sebelisoa pakeng tsa mantlha le metsi (mokotla oa conductive o hokahane le palo e ntle 'me metsi a kopantsoe le palo e fosahetseng). Kamora ho nka sampole, ho etsoa tlhahlobo ea motlakase oa ho qoelisoa metsing, motlakase oa teko ke AC 1kV, 'me ha ho na ho senyeha ho hlokahalang.
4. Ho hanyetsa mocheso
Ho hanyetsa ha motlakase oa thapo e phethiloeng ea photovoltaic ka 20 ° C ha e na ho ba ka tlase ho 1014Ω · cm,
Ho hanyetsa mocheso oa mohala o phethiloeng ka 90 ° C ha oa lokela ho ba ka tlase ho 1011Ω · cm.
5. Ho hanyetsa bokaholimo ba sheath
Ho hanyetsa bokaholimo ba sheath ea cable e phethiloeng ha ea lokela ho ba tlase ho 109Ω.