Electrical System Design Service

Safety, codes, and accurate calculations

Safety begins with precise load calculations. Designers account for duty cycle, power factor, diversity, and surge currents from compressors, inverters, and induction motors. With those values established, conductor ampacity and voltage drop limits guide wire size and routing. Overcurrent protection is chosen to clear faults quickly while avoiding nuisance trips during normal inrush. Proper enclosure ratings protect equipment from dust and moisture, especially in mobile and outdoor environments.

Grounding and bonding create a low impedance path that allows protective devices to operate as intended. This includes equipment grounding conductors, main bonding points, and attention to stray current paths that can produce corrosion or interference. For systems that include batteries and inverters, designers consider fault current available from both utility and storage so that interrupt ratings are sufficient across the system.

Load analysis and power quality

A thorough study considers both real and reactive power, harmonics from drives or inverters, and the effect of non linear loads on breakers and transformers. Where sensitive electronics are present, designers plan filtering, proper neutral sizing, and clean reference grounds. Voltage drop budgets keep critical circuits stable under peak demand.

Protection and selective coordination

The goal is to isolate only the affected branch during a fault. Time current curves for breakers and fuses are layered so upstream devices remain closed while downstream devices open first. Arc flash energy is managed by appropriate device settings and equipment labeling to support safe work practices.

Documentation and maintenance

Deliverables include a one line diagram, panel schedules, cable schedules, equipment data sheets, and installation details. Clear documentation reduces installation errors and speeds troubleshooting. A maintenance plan defines torque checks, insulation testing, and battery health checks to preserve performance over time.

Storage, charging, and distribution strategy

Projects that use energy storage rely on accurate modeling of depth of discharge, cycle life, and charge profiles. Lithium iron phosphate batteries are popular for their stable chemistry and usable capacity, but they demand a battery management system that controls temperature, cell balance, and protection thresholds. Chargers and alternator based charging require current limits and temperature compensation to protect both the storage and the source.

Distribution design balances convenience with safety. Subpanels separate sensitive loads, while dedicated circuits serve high draw devices. Transfer switching between shore, generator, and inverter must prevent cross coupling of sources. Clear labeling and access for service matter as much as component selection.

For mobile and off grid platforms, space, vibration, and heat shape many choices. Designers specify flexible cable where needed, strain relief at terminations, and ventilation for inverters and chargers. Monitoring brings everything together, allowing owners to see state of charge, load trends, and fault history so decisions are data driven.

Where a professional service adds value

A professional electrical system design service turns assumptions into numbers and numbers into drawings. The outcome is reliability you can plan around, from a quiet office to a remote trailhead. Precise calculations reduce copper, right size storage, and prevent surprise shutdowns. Good drawings shorten install time and make future upgrades straightforward.

If you are planning a purpose built vehicle, a detailed power design is the backbone of comfort and capability. After the engineering comes expert installation, testing, and a patient walkthrough so you know how everything works and how to care for it.

• Explore our recreational vans to see how power integrates with layouts and storage.
• If you want a clean sheet build, start with custom build vans for a system matched to your travel style.
• Looking for a finance friendly platform, see mainstream vans that finance and plan your electrical from day one.

Next steps

Tell us what you power, how long you stay off grid, and the climate you face. We will size storage, charging, and distribution, then install and commission the system. You receive clear drawings, labels, and a walkthrough at handoff.

Share your wish list and get a targeted electrical design that supports it. From quiet nights to heavy workdays, OZK Customs builds dependable power that fits your rig and your routes. Submit the form and let us design your system with confidence.