Electrical Load Calculation & Cable Sizing

At SWOS Electrician Support, we provide precise load calculation and cable sizing services to ensure your electrical systems are both safe and energy-efficient. Our team follows the latest UK Wiring Regulations (BS 7671) and voltage drop standards, guaranteeing that every circuit is designed to perform reliably under real-world conditions.

What We Offer

Accurate Load Assessment – Calculation of total and diversified electrical loads for residential, commercial, and industrial installations.

Cable Sizing & Selection – Choosing the correct cable size, insulation type, and installation method based on load current, ambient temperature, and voltage drop limits.

Protection Device Selection – Proper coordination of circuit breakers, fuses, and isolators to protect your system from overload and short-circuit faults.

Voltage Drop & Fault Level Analysis – Verification that voltage levels remain within safe operating limits for optimal system performance.

Design Tools Used – Professional software such as ElectricalOM and AutoCAD Electrical for precise and compliant calculations.

Why Choose SWOS Electrician Support?

Fully compliant designs meeting BS 7671:2018 (IET Wiring Regulations).

Fast, accurate, and documented calculations ready for project approval or EICR reporting.

Trusted by contractors, consultants, and facility managers across the UK.

Expert support for both new installations and existing system upgrades.

Ideal For:

Electrical contractors requiring reliable cable sizing reports.

Developers and engineers working on detailed design stages.

Maintenance teams ensuring existing circuits meet load and safety standards.