NAYY 4x120 SE 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, NAYY 4x120 SE 0,6/1 kV comes to an overall diameter of about 39.7 mm and a weight of about 2,400 kg/km.
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Main dimensions
| Conductor | Aluminium 120 mm² SE, Ø 13.0 mm | HD 603 3-G Table 1 (p. 3-G-20) |
|---|---|---|
| Insulation | PVC 1.6 mm | IEC 60502-1:2004 Tables 5-7, nominal insulation thickness |
| Diameter over insulation | 16.2 mm | |
| Core diameter | 16.2 mm | |
| Overall diameter | 39.7 mm | |
| Weight (approximate) | 2,400 kg/km |
Sector-shaped conductors (SM stranded, SE solid) to HD 603 Part 3 Section G, Appendix Tables 1 and 2. The diameter given is that of the circle with the sector's perimeter, on which the core layers are added.
Layer by layer (inside out)
| # | Layer | Material | Thickness mm | Ø over mm | Source | How firmly |
|---|---|---|---|---|---|---|
| 1 | Insulation | PVC | 1.6 | 16.2 (on each core) | IEC 60502-1:2004 Tables 5-7, nominal insulation thickness | as manufacturers publish it, table not read |
| 2 | Filler | PP | fills the space between the cores | 32.3 | ||
| 3 | Inner covering / bedding | PVC | 1.4 | 35.1 | IEC 60502 Table 8, extruded inner covering by the fictitious diameter over the laid-up cores (Annex A) | read in the standard |
| 4 | Sheath | PVC | 2.3 | 39.7 | 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.
Materials in this cable: Aluminium, PVC
Weight, by part
| Conductors | 1,320 kg/km |
| Metal screens and armour | 0 kg/km |
| Insulation, semicon, tapes, fillers and sheaths | 1,070 kg/km |
| Total | 2,400 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).
NAYY 4x120 SE 0,6/1 kV: equivalents in other countries
Shown for 4x120 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/PVC/PVC 4x120 0,6/1 kV (to IEC 60502-1) | Equivalent | Sheath 2.4 → 2.3 mm; Overall diameter 39.93 → 39.73 mm |
| India | IS 1554 (Part 1) | AYY 4x120 1100 V (the code letters of IS 1554 (Part 1):1988 cl. 17.3) | Close | rated 0.635/1.1 kV (same Um 1.2 kV); conductor SE → RM; Inner covering / bedding 1.4 → 0.5 mm; Overall diameter 39.93 → 44.67 mm |
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.
Laying, sizes and datasheet: NAYY 4x120 SE 0,6/1 kV
NAYY 4x120 SE 0,6/1 kV belongs to the family LV PVC power cables: the lowest laying temperature, bending radius, pulling, depth, drum handling and the test after laying, every rule with its sources. Laying and handling guide: LV PVC power cables
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