Cable Sizing Quick Reference Card — AS/NZS 3008, BS 7671, IEC 60364 & NEC

This A4 landscape card consolidates the most-used cable sizing data from all four major standards onto a single double-sided sheet. The front face presents current-carrying capacity values for Cu/XLPE conductors from 1.5 mm² to 300 mm² under the most common installation method for each standard: enclosed in conduit for AS/NZS 3008 (Table 13, Column 4), Reference Method C for BS 7671 (Table 4D2A), Method B1 for IEC 60364 (Table B.52.4), and 75°C column for NEC (Table 310.16). Values are arranged in a compact four-column layout so you can compare standards at a glance. The reverse side provides the universal voltage drop formula (ΔV = I × L × (R cosφ + X sinφ) × 2 / 1000) with worked example, plus a consolidated derating factor table covering ambient temperature correction and grouping factors for all four standards. A QR code links to the full ECalPro cable sizing calculator for detailed multi-factor calculations with clause references. Designed for engineers and contractors who work across multiple jurisdictions and need instant access to cross-standard cable data without carrying four separate reference documents.