Izakhiwo zikagesi zezintambo ze-photovoltaic

1. DC ukumelana

Ukumelana kwe-DC komgogodla we-conductive wokuqedwaikhebula le-photovoltaicku-20℃ ayinkulu kuno-5.09Ω/km.

2. Ukuhlolwa kwe-voltage yokucwiliswa kwamanzi

Ikhebuli eqediwe (20m) icwiliswa emanzini (20±5)℃ ihora elingu-1 bese ihlolwa i-voltage engu-5min (AC 6.5kV noma DC 15kV) ngaphandle kokuphuka.

3. Ukumelana ne-voltage ye-DC isikhathi eside

Isampula liyi-5m ubude futhi lifakwe emanzini acwengekile aqukethe u-3% sodium chloride (NaCl) ku-(85±2)℃ ngo-(240±2)h, zombili iziphetho zivezwe emanzini ngo-30cm. I-voltage ye-DC engu-0.9kV isetshenziswa phakathi kwengqikithi namanzi (i-coductive core ixhunywe esigxotsheni sephozithivu futhi amanzi axhunywe esigxotsheni esinegethivu). Ngemva kokuthatha isampula, kwenziwa ukuhlolwa kwamandla kagesi wokucwiliswa emanzini, i-voltage yokuhlola ingu-AC 1kV, futhi akukho ukwehlukana okudingekayo.

4. Ukumelana ne-insulation

Ukumelana nokufakwa kwentambo ye-photovoltaic eqediwe ku-20 ° C akufanele kube ngaphansi kuka-1014Ω · cm,

Ukumelana nokufakwa kwentambo eqediwe ku-90°C akufanele kube ngaphansi kuka-1011Ω·cm.

5. Ukumelana ne-sheath surface

Ukumelana okungaphezulu komgodla wekhebula oqediwe akufanele kube ngaphansi kuka-109Ω.