6mm vs 10mm Solar DC Cable Pakistan 2026 — Sizing + Price Comparison Guide
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6mm vs 10mm solar DC cable Pakistan 2026 — current capacity, voltage drop, prices PKR 130-210 per metre, CNC YCC range 4-25 mm². Sizing rules for residential 5-15 kW PV strings, when to pick each, NEPRA 2026 + IEC 62930 compliance.