ATNA Engineering

⚡ From Concept to Site-Ready Engineering

At ATNA Engineering, we support projects from early concept to construction-ready electrical documentation.

Our process includes:
▪ Concept electrical planning
▪ Load, active & reactive power calculations
▪ Detailed drawings & BOQs
▪ 3D and technical documentation

We focus on designs that are buildable, compliant, and practical on site — not just good-looking on screen.

🔌 ATNA Engineering — Powering Smart Solutions

📩 [email protected]

📞 +40 721 461 042

⚡ Street Lighting Design

This image shows a street lighting calculation developed using DIALux, based on European road lighting standards.

Key design parameters:
▪ Lighting class: M3 (EN 13201)
▪ Roadway width: 7.0 m | Two-lane carriageway
▪ Luminaire arrangement optimized for uniformity and glare control
▪ Pole height, spacing, overhang, and boom angle optimized for compliance
▪ Maintained illuminance and uniformity verified after maintenance factor
▪ ULR and glare values checked to meet standard limits

The design ensures road safety, visual comfort, and energy efficiency while meeting authority approval requirements.

📐 We provide:
• Street & area lighting design
• EN 13201 / IEC compliant calculations
• Luminaire optimization & energy studies
• Technical drawings, BOQs & reports

📩 [email protected]
📞 +40 721 461 042

🔌 ATNA Engineering — Powering Smart Solutions

⚡ Electrical Design & Load Calculation – Technical Drawing Sample

This post presents a detailed electrical schematic developed in AutoCAD, covering circuit layout, lighting distribution, and load calculations for a low-voltage system.

🔍 Key Technical Design Considerations:
▪ Load calculations based on installed and absorbed power (Pi / Pa)
▪ Phase balancing applied for three-phase lighting circuits (~400V)
▪ Cable sizing verified for current capacity and voltage drop limits
▪ Protective devices selected with proper selectivity and coordination
▪ Earthing and neutral sizing aligned with IEC safety requirements

All designs are prepared in accordance with IEC and European standards and suitable for authority submission and construction ex*****on.

📐 We provide electrical design, calculations, BOQs, 3D visualizations, and complete engineering documentation.

📩 [email protected]
📞 +40 721 461 042

🔌 ATNA Engineering — Powering Smart Solutions

🚀 We are pleased to announce the launch of ATNA Engineering

ATNA Engineering provides professional electrical design and consultancy services for residential, commercial, and industrial projects.

Operating in Romania and Sri Lanka, we specialize in electrical system and lighting design, power distribution planning, load calculations, earthing and lightning protection, backup power systems, and energy-efficient solutions. Our designs are developed in accordance with IEC, European, BS, and applicable local authority standards.

Our services include:
▪ Electrical System Design
▪ Lighting Design (Indoor & Outdoor)
▪ Power Distribution Planning
▪ Load Calculations & Cable Sizing
▪ Earthing & Lightning Protection
▪ Solar PV System Design & Technical Studies
▪ Backup Power Systems (UPS / Generator Integration)
▪ Energy-Efficient Electrical Design
▪ Technical Documentation (Drawings, BOQs, Calculations, Reports)

We are committed to delivering safe, reliable, and intelligent electrical solutions backed by strong engineering principles and international exposure.

🔌 ATNA Engineering — Powering Smart Solutions.