Magetsi zvinhu zve photovoltaic cables

1. DC kuramba

Iyo DC kuramba kweiyo conductive musimboti weyakaperaphotovoltaic cablepa20 ℃ haina kukura kupfuura 5.09Ω/km.

2. Mvura immersion voltage test

Tambo yapera (20m) inonyudzwa mu (20±5) ℃ mvura kwe1h uye yozoiswa pa5min voltage test (AC 6.5kV kana DC 15kV) isina kuputsika.

3. Yenguva refu DC voltage resistance

Muenzaniso wacho wakareba 5m uye wakaiswa mumvura yakadirwa ine 3% sodium chloride (NaCl) pa (85±2) ℃ ye (240±2)h, migumo yose iri pachena pamusoro pemvura kwe30cm. A DC voltage ye 0.9kV inoshandiswa pakati pepakati nemvura (iyo conductive core yakabatanidzwa kune yakanaka pole uye mvura yakabatanidzwa kune yakaipa danda). Mushure mekutora sampuli, kuyedza kunyudzwa kwemagetsi kwemvura kunoitwa, bvunzo yemagetsi ndeye AC 1kV, uye hapana kuparara kunodiwa.

4. Insulation resistance

Kudzivirira kwekudzivirira kwetambo yakapera photovoltaic pa 20 ° C haifaniri kuva pasi pe1014Ω · cm,

Kudzivirira kwekudzivirira kwetambo yakapedzwa pa90 ° C haifaniri kuva pasi pe1011Ω · cm.

5. Sheath surface resistance

Kupokana kwepamusoro kweiyo yakapedzwa tambo sheath haizove isingasviki 109Ω.