Iimpawu zombane zeentambo ze-photovoltaic

1. DC ukuxhathisa

Ukuxhatshazwa kwe-DC ye-conditive core egqityiweyointambo ye-photovoltaicku-20℃ ayikho mkhulu kune-5.09Ω/km.

2. Uvavanyo lombane wokuntywiliselwa emanzini

Intambo egqityiweyo (20m) intywiliselwa ku (20±5)℃ emanzini i-1h ize emva koko ifakwe kuvavanyo lombane oluyi-5min (AC 6.5kV okanye DC 15kV) ngaphandle kokwaphuka.

3. Ixesha elide lokumelana nombane we-DC

Isampuli yi-5m ubude kwaye ifakwe kumanzi adibeneyo aqulethe i-3% ye-sodium chloride (NaCl) kwi- (85 ± 2) ℃ ye (240±2) h, kunye neziphelo zombini zivelele kumphezulu wamanzi we-30cm. I-voltage ye-DC ye-0.9kV isetyenziswa phakathi kondoqo kunye namanzi (i-conditive core iqhagamshelwe kwipali echanekileyo kwaye amanzi adityaniswe kwipali engafanelekanga). Emva kokuthatha isampuli, uvavanyo lwe-voltage yokucwiliswa kwamanzi luyenziwa, i-voltage yokuvavanya i-AC 1kV, kwaye akukho kuphazamiseka kuyadingeka.

4. Ukumelana ne-insulation

Ukuxhatshazwa kwe-insulation ye-cable photovoltaic egqityiweyo kwi-20 ° C ayiyi kuba ngaphantsi kwe-1014Ω · cm,

Ukuxhatshazwa kwe-insulation yentambo egqityiweyo kwi-90 ° C ayiyi kuba ngaphantsi kwe-1011Ω · cm.

5. Ukumelana nomphezulu we-sheath

Ukumelana nomphezulu we-sheath yekhebula egqityiweyo ayiyi kuba ngaphantsi kwe-109Ω.