Translations:Conductor types/10/en
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There are countless different types of conductor, but there are only a few types that are commonly used with off-grid PV systems:
| Designation | Characteristics | Use |
|---|---|---|
| THHN/THWN | Rated for up to 90°C in wet or dry locations. 600V rating. Available in nearly any size. | Used for circuits of any kind - inside or outside - within a conduit. |
| SPT | Stranded parallel thermoplastic. Two conductors joined together by plastic that are used to for one circuit. | Frequently used for indoor loads circuits within a conduit. |
| RHH RHW, or XHHW-2 | Flexible insulation rated. Characteristics may vary. | Battery wiring |
| PV wire/USE-2/RHW-2 | Rated for up to 90° in wet or dry locations. Can be exposed to sunlight. Voltage rating 600-2000 V. Typically only found in certain sizes (12 AWG, 4 mm², 10 AWG, 6 mm²) | Wiring of PV source and from PV source to combiner box or charge controller. |
