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Electrical Design and Calculations (AC/DC)
Full DC and AC electrical design with protective devices, isolation, earthing and verified calculations.
Overview
We produce the complete electrical design for the PV system, from the modules to the point of connection. Protective devices, isolation and earthing arrangements are selected and verified by calculation, so the installation is safe, compliant and straightforward to inspect and certify.
Why it matters
DC circuits behave very differently from AC — arcs do not self-extinguish and PV fault currents are limited. Correct device selection, isolation and earthing protect people, property and equipment.
What's included
- DC design: string protection, isolators and surge protection
- AC design: protective devices, RCD selection and isolation
- Earthing and bonding arrangement for the supply type
- Prospective fault current and disconnection-time checks
- Maximum demand and supply capacity assessment
- Calculation report suitable for design sign-off
What we need from you
- Existing supply details (fuse rating, earthing system, Ze)
- Consumer unit or distribution board details
- Proposed layout and equipment
- Any existing generation or storage on site
Suitable for
Standards & references
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View serviceGet a quote for Electrical Design
Send us your site details and we'll confirm scope, deliverables and turnaround time within one working day.