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| Output | Unit | Condition | | :--- | :--- | :--- | | Minimum conductor size | mm² | Based on Iz ≥ Ib | | Recommended size | mm² | Max of (thermal, Vd, short-circuit) | | Voltage drop actual | V / % | Absolute and relative | | Short-circuit withstand | kA / mm² | Pass/Fail | | Earth loop compliance | Yes/No | For armour-only CPC | | Derated current capacity | A | Iz after factors |
| Parameter | Options / Range | Unit | | :--- | :--- | :--- | | Conductor material | Copper / Aluminium | - | | Armour type | Steel (SWA) / Aluminium (AWA) | - | | Insulation | XLPE / PVC | - | | Installation method | Clipped direct, tray, duct, buried, etc. | Reference method | | Ambient temperature | -5 to 90 °C | °C | | Number of circuits | 1 – 20 | - | | Load current (Ib) | 1 – 2000 | A | | Length (one-way) | 1 – 5000 | m | | Short-circuit current (Isc) | 0 – 100 | kA | | Disconnection time (t) | 0.1 – 5 | s | armoured cable size calculator
𝒔 ): Verify the armour or earth core is large enough to trigger the protective device (breaker/fuse) fast enough. Practical Applications Calculators are frequently used for: Domestic: Powering garden offices, sheds, or EV charging points. Industrial: Running heavy machinery or connecting distribution boards. Infrastructure: Underground power networks and street lighting. Conclusion While online tools from providers like BATT Cables or Prysmian provide essential guidance, they are meant to assist—not replace—professional verification. An armoured cable size calculator ensures that the final installation is electrically sound, regulatorily compliant, and prepared for future load demands. AI can make mistakes, so double-check responses Copy Creating a public link... You can now share this thread with others Good response Bad response 20 sites How to Use a SWA Cable Calculator Effectively Oct 3, 2025 — | Output | Unit | Condition | |
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Integration of harmonic derating (IEC 61000-3-2) and cyclic load factor (IEC 60853). An armoured cable size calculator ensures that the
The calculator must return: