National Electric MFG
Terms of use
Use these tools for education and planning only. They do not replace electrical design, inspection, testing, risk assessment, manufacturer instructions or professional judgement.
The calculators and AI-style helpers are written for planning conversations between electricians, site managers, facilities teams and hire/specification desks. They are not certification tools.
Where a result involves protective devices, cable ratings, RCDs, live equipment or suspected overheating, stop and involve a qualified electrician or responsible site engineer.