Direct Ampacity & Derating in KSA Heat
A 0.75 sq mm solid copper wire delivers exactly 7 amperes at 30°C ambient temperature. In Riyadh or Jeddah, summer heat routinely exceeds 45°C. PVC insulation degrades fast under this thermal load. Apply a 0.87 derating factor for continuous operation. Your safe working limit drops to 6.0 amperes. Peak inrush currents from motors or relays can spike higher, but steady-state loads must stay under 6.0A to prevent insulation breakdown.
Application Limits & Saudi Electrical Code (SEC) Compliance
This 0.75 mm² cable sits at 1,320 watts on a standard 220V single-phase circuit. It fits control panels, lighting tracks, and switchgear wiring. Do not use it for room air conditioners or water heaters. Those appliances require larger cross-sections to avoid dangerous voltage drop over long runs. Asharqiyah Cables meets BS 6231, which aligns with SASO IEC 60227 and Saudi Electrical Code requirements for low-voltage indoor installations. The 24.8 ohm/km DC resistance ensures stable signal transmission without excessive heat buildup.
Pricing, Availability & Installation Tips
As of 2026, retail prices for 0.75 sq mm PVC insulated wire in KSA range from SAR 0.80 to SAR 1.50 per meter. Bulk coils typically cost between SAR 75 and SAR 130. Youmats stocks this exact 600/1000 V black tinned copper variant across Riyadh, Jeddah, and Dammam warehouses. Pull it through rigid PVC conduits. Keep cable bundles under four conductors per tray. Overcrowding traps heat and artificially lowers your ampacity. Use the 300-foot spools to minimize splice points. Fewer joints mean fewer failure points in dusty environments.
FAQ
What is the current carrying capacity of 0.75 sq mm wire?
It carries 7 amperes at 30°C. In KSA’s 45°C summer climate, apply the 0.87 derating factor for a safe continuous rating of 6.0 amperes.
What are the standard types of 0.75 mm² electrical wires available in Saudi Arabia?
Single-core tinned copper with 105°C PVC insulation is the industry standard. Multi-core variants exist but are less common for general building wiring.
How much does 0.75 sq mm wire cost per meter in KSA?
Retail prices average SAR 0.80 to SAR 1.50 per meter. Bulk coil purchases drop the per-meter cost significantly.
Is 0.75 sq mm wire suitable for AC units or lighting circuits in Saudi homes?
It is ideal for lighting circuits, control panels, and relay wiring. It lacks the cross-sectional area for heavy appliances like AC units or water heaters.
What are the SASO safety regulations for using 0.75 sq mm cables in Saudi Arabia?
SASO and SEC mandate BS 6231 or IEC 60227 compliance. The wire must pass thermal aging tests, maintain ≤24.8 ohm/km resistance, and use rated PVC insulation for indoor safety.
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