SER 4-4-4-6 AL 600 V
Nominal calculation, not one manufacturer's datasheet. The conductors are compact aluminium as Southwire prints them; the XHHW-2 walls, the jacket and the ground are the values the makers print, because UL 854 was not read. Seven makers' cables of the same name differ by up to 20 % in diameter: check the datasheet before you specify or order.
By NEC Table 8 and the catalogued walls, SER 4-4-4-6 AL 600 V comes to an overall diameter of about 19.2 mm and a weight of about 350 kg/km.
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Main dimensions
| Conductor | Aluminium 4 AWG (21.2 mm²), Ø 5.4 mm | compact Class B aluminium AA-8000: Southwire SPEC 10015 Table 1 and 3, SPEC 45007 (ASTM B800 / B801) |
|---|---|---|
| Insulation | XLPE 1.14 mm | SER conductor XLPE insulation: the XHHW-2 band of its size (Southwire SPEC 10040 / 10041; UL 854 not read) |
| Diameter over insulation | 7.7 mm | |
| Core diameter | 7.7 mm | |
| Overall diameter | 19.2 mm | |
| Weight (approximate) | 350 kg/km |
Layer by layer (inside out)
| # | Layer | Material | Thickness mm | Ø over mm | Source | How firmly |
|---|---|---|---|---|---|---|
| 1 | Insulation | XLPE | 1.14 | 7.7 (on each core) | SER conductor XLPE insulation: the XHHW-2 band of its size (Southwire SPEC 10040 / 10041; UL 854 not read) | maker catalogue value, standard text not read |
| 2 | Separation tape | Polyester | 0.10 | 17.7 | typical polyester tape | typical value, no rule |
| 3 | Sheath | PVC | 0.76 | 19.2 | SER PVC jacket 30 mil: Southwire SPEC 10040 / 10041, no other maker prints it (UL 854 not read) | maker catalogue value, standard text not read |
SER is the UL 854 service entrance cable of NEC Article 338: two, three or four XHHW-2 conductors of one size and a smaller bare ground cabled round, no fillers, a binder tape and a gray PVC jacket. Aluminium AA-8000, compact stranded. Checked against Southwire, Encore, Priority Wire, Cerrowire, Houston Wire & Cable and Nassau: research/designer-americas/ser.md in the site repository.
Materials in this cable: Aluminium, XLPE, PVC
Weight, by part
| Conductors | 220 kg/km |
| Metal screens and armour | 0 kg/km |
| Insulation, semicon, tapes, fillers and sheaths | 140 kg/km |
| Total | 350 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).