NA2X2Y 1x70 RM 0,6/1 kV
IEC nominal calculation, not manufacturer data. The thicknesses are the nominal values of the construction standards, added up layer by layer. A manufacturer's cable of the same name can differ by a few millimetres and by 10 to 20 % in weight: always check its datasheet before you specify, order or lay a cable.
By the IEC construction rules, NA2X2Y 1x70 RM 0,6/1 kV comes to an overall diameter of about 14.8 mm and a weight of about 280 kg/km.
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Main dimensions
| Conductor | Aluminium 70 mm² RM, Ø 9.8 mm | IEC 60228 class 2 compacted, middle of min / max |
|---|---|---|
| Insulation | XLPE 1.1 mm | IEC 60502-1:2004 Tables 5-7, nominal insulation thickness |
| Diameter over insulation | 12.0 mm | |
| Overall diameter | 14.8 mm | |
| Weight (approximate) | 280 kg/km |
Round conductors (IEC 60228 class 2 compacted; class 1 solid up to 10 mm²).
Layer by layer (inside out)
| # | Layer | Material | Thickness mm | Ø over mm | Source | How firmly |
|---|---|---|---|---|---|---|
| 1 | Insulation | XLPE | 1.1 | 12.0 | IEC 60502-1:2004 Tables 5-7, nominal insulation thickness | as manufacturers publish it, table not read |
| 2 | Sheath | PE | 1.4 | 14.8 | IEC 60502 clause 13 / 14.3, oversheath: 0.035 D + 1.0 mm, D the fictitious diameter (Annex A) | read in the standard |
Diameters add up the nominal layers. Where IEC 60502 sizes a layer by the fictitious diameter of its Annex A, the calculated diameter is used instead, which can move a value one step. Low voltage insulation (IEC 60502-1) is as manufacturers publish it; the table itself was not read. Sources and page numbers: research/mv-dimensions in the site repository.
Materials in this cable: Aluminium, XLPE, PE
Weight, by part
| Conductors | 190 kg/km |
| Metal screens and armour | 0 kg/km |
| Insulation, semicon, tapes, fillers and sheaths | 90 kg/km |
| Total | 280 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).
NA2X2Y 1x70 RM 0,6/1 kV: equivalents in other countries
Shown for 1x70 0.6/1 kV. Each country's rules are applied to this build, keeping the conductor, section, cores, voltage, screen, armour and sheath.
| Country | Standard | Name in that country | Verdict | Differences |
|---|---|---|---|---|
| International (IEC) | IEC 60502 | Al/XLPE/PE 1x70 0,6/1 kV (to IEC 60502-1) | Close | Sheath 1.8 → 1.4 mm; Overall diameter 15.55 → 14.75 mm |
No equivalent in: BS 5467 (armoured cables only, asks another sheath compound); BS 6724 (armoured cables only, asks another sheath compound); BS 7846 (not in its cable tables, armoured cables only, asks another sheath compound).
Nominal values computed by each standard's rules, not manufacturer data. This is not a statement that two cables are interchangeable: the buyer's specification and the maker's type test decide.