Commercial Cable Sizing & Load Analysis

I'm seeking an expert in electrical engineering to assist with cable sizing and load calculations for a commercial property.

Key Requirements:
- Detailed load calculations for our lighting system and machinery/equipment.
- Sizing of cables based on these load calculations.

I have detailed plans available for the property, so you will have all the necessary information at your disposal.

Ideal Skills:
- Extensive experience with commercial properties.
- Proficiency in electrical load calculations and cable sizing.
- Familiarity with lighting and machinery equipment systems.

Please ensure you can provide a thorough analysis to ensure safety and efficiency.
1. Electrical Load Calculations

Comprehensive load assessments for lighting, sockets, signage, and 3-phase equipment.

2. Circuit Design

Clear circuit diagrams showing:

Socket outlets (multiple radial circuits)

Lighting circuits (two circuits)

Individual 3-phase outlets (each circuit separate)

Signage circuit

3. Cable Sizing & Routing

Precise cable sizing calculations (including voltage drop)

Cable type recommendations (PVC T&E, SWA, etc.)

Clearly annotated cable routes on provided floor plan.

4. Protective Device Specification

Specification of correct MCB/RCD/RCBO ratings per circuit.

Details for surge protection (SPD) if required.

5. Earthing & Bonding

Clearly defined earthing and bonding requirements.

6. Distribution Board Schedule

Detailed distribution board layout and circuit schedules.

7. Compliance & Certification Documentation

Design must fully comply with BS 7671:2018+A2:2022 regulations.

Ready for verification and approval by qualified UK electricians.

? Deliverables Required:

PDF and DWG/CAD format circuit diagrams clearly annotated.

Comprehensive load calculation sheets.

Cable schedules and circuit tables.

Distribution board layouts.

Compliance declaration to UK standards (BS7671).

⚠️ Standards & Regulations:

All designs must strictly adhere to the latest UK wiring regulations: BS 7671:2018+A2:2022.

Emergency lighting, if applicable, to comply with BS 5266.

Energy efficiency and safety standards must be clearly demonstrated.

? Skills & Qualifications:

Proven experience with UK electrical regulations (BS7671).

Ideally, certification in electrical engineering or professional electrical design (C&G 2396, HNC/HND or higher).

Competent with professional electrical design software (e.g. AMTECH/Trimble, AutoCAD).