IEC-Compliant Residential SLD Upgrade

I need to bring my existing residential single-line diagram fully in line with the latest IEC requirements. The sole objective is code compliance; we are not expanding capacity or re-engineering the system. I will provide the current diagram, panel schedules, and load data.

Your job is to revise the drawing, incorporate the new circuit breakers we are adding, and ensure every symbol, conductor size, and protective device matches the relevant IEC clauses for residential installations. Please work in a mainstream CAD environment—AutoCAD Electrical, EPLAN, or similar—so I can edit the file later. Clarity is important because the revised diagram will go straight to the inspector and the contractor.

Acceptance criteria:
• All devices and conductors sized and labelled per the specified IEC articles.
• New breakers correctly placed and referenced.
• Diagram passes an IEC compliance check performed by my local inspector.

Deliverables:
• Updated single-line diagram in native CAD format.
• Clean PDF ready for submission.
• Brief compliance note referencing the IEC clauses applied.

If you have recent residential IEC experience, I’m ready to start as soon as you have the existing files.