SEU 3/0-3/0-3/0 AL 600 V
Nominal calculation, not one manufacturer's datasheet. The conductors are compact aluminium as Southwire prints them; the XLPE walls are Southwire's, the neutral's wire count is Priority Wire's, and the jacket is fitted to six makers' diameters, because UL 854 was not read. Check the datasheet before you specify or order.
By NEC Table 8 and the makers' walls, SEU 3/0-3/0-3/0 AL 600 V comes to about 35.1 × 21.6 mm (width × thickness) and a weight of about 980 kg/km.
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Main dimensions
| Conductor | Aluminium 3/0 AWG (85.0 mm²), Ø 10.7 mm | compact Class B aluminium AA-8000: Southwire SPEC 10015 Table 1 and 3, SPEC 45007 (ASTM B800 / B801) |
|---|---|---|
| Insulation | XLPE 1.40 mm | SEU conductor XLPE insulation: 21 mil at 10 AWG, 31 at 8 and 6, 45 at 4 to 2, 55 from 1 AWG (Southwire SPEC 10050 / 10051; UL 854 not read) |
| Diameter over insulation | 13.5 mm | |
| Core diameter | 13.5 mm | |
| Width × thickness | 35.1 × 21.6 mm | |
| Weight (approximate) | 980 kg/km |
Layer by layer (inside out)
| # | Layer | Material | Thickness mm | Ø over mm | Source | How firmly |
|---|---|---|---|---|---|---|
| 1 | Insulation | XLPE | 1.40 | 13.5 (on each core) | SEU conductor XLPE insulation: 21 mil at 10 AWG, 31 at 8 and 6, 45 at 4 to 2, 55 from 1 AWG (Southwire SPEC 10050 / 10051; UL 854 not read) | maker catalogue value, standard text not read |
| 2 | Wire screen | Aluminium | 14 wires of 2.78 mm, 85.01 mm² | 19.1 | SEU concentric neutral: bare wires, as many as Priority Wire prints, their diameter from the neutral's area | maker catalogue value, standard text not read |
| 3 | Separation tape | Polyester | 0.10 | 19.3 | typical polyester tape | typical value, no rule |
| 4 | Sheath | PVC | 1.14 | 21.6 | SEU gray PVC jacket 45 mil: Southwire prints 30 mil; fitted to six makers' diameters, since it also fills over the neutral wires | maker catalogue value, standard text not read |
SEU is the UL 854 service entrance cable, style U, of NEC Article 338: two XLPE (XHHW-2) conductors laid flat side by side, a concentric neutral of bare aluminium wires helically over them, a binder tape and a gray PVC jacket, so the cable is oval. Aluminium AA-8000, compact stranded. Checked against Southwire, Encore, Priority Wire, Cerrowire, General Cable and Alan Wire: research/designer-americas/ser.md and flat-more.md in the site repository.
Materials in this cable: Aluminium, XLPE, PVC
Weight, by part
| Conductors | 480 kg/km |
| Metal screens and armour | 230 kg/km |
| Insulation, semicon, tapes, fillers and sheaths | 260 kg/km |
| Total | 980 kg/km |
|---|
Each layer's cross-section times its density; stranded conductors, laid-up cores and helical wires count 2 % longer than the cable. Densities: copper 8.89 and aluminium 2.703 g/cm³ (the values of IEC 60028 and IEC 60889); XLPE 0.92, PE 0.94, PVC 1.45, semicon 1.12, steel 7.85 g/cm³ (usual compound values).