This application is a professional reference tool for qualified electricians. You must read and accept these terms before proceeding.

1. SCOPE & PURPOSE

VoltCalc Pro is a calculation aid based on BS 7671:2018+A4:2026 (IET Wiring Regulations). It is designed to assist qualified engineers with cable sizing, job estimating and material scheduling — not to replace professional judgement or a full BS 7671 design.

2. CALCULATION ACCURACY

All calculations use simplified BS 7671 methods. Results are approximate. They do not account for all site-specific conditions. All outputs must be independently verified by a competent engineer before use in any installation.

3. REGULATORY COMPLIANCE

Cable sizing results reference BS 7671:2018+A4:2026. Regulations change — always confirm you are working to the current edition and any applicable amendments or local requirements.

4. PRICING

All material prices are indicative only. They do not constitute a formal quotation. Actual prices will vary by supplier, region and market conditions.

5. AI ADVISOR

AI-generated responses do not constitute professional electrical, legal or financial advice. Always verify AI recommendations against current regulations and manufacturer data.

6. LIABILITY

To the fullest extent permitted by law, the developers accept no liability for any loss, damage or injury arising from reliance on any output of this application. Use of this tool is entirely at your own risk.

7. QUALIFIED USERS ONLY

This tool is intended for use by qualified electrical professionals — registered electricians, electrical engineers and contractors. It is not suitable for use by unqualified persons.