IET Wiring Regulations 2023

IET Wiring Regulations is the ultimate professional companion for UK...

IET Wiring Regulations is the ultimate professional companion for UK electricians. Go beyond exam prep with on-site calculators, quick reference tables, inspection checklists, and digital certificates you’ll use every working day.

--- EXAM PREP ---
Over 580 practice questions across 9 topics covering BS 7671:2018+A2:2022 (18th Edition with 2022 Amendment and 2023 Corrigendum). Comprehensive explanations with section and page references for every answer. Mock tests with weighted scoring track your readiness for C&G 2382-18.

--- 21 BS 7671 CALCULATORS ---
• Cable Sizing - current carrying capacity per BS 7671
• Voltage Drop - mV/A/m calculations (Table 4D5B)
• R1+R2 - conductor resistance from Table I1
• Conduit & Trunking Fill - cable fill calculations
• Cable Resistance at Temp - temperature correction
• Earth Fault Loop (Zs) - impedance check against Table 41
• Prospective Fault Current (PFC)
• Adiabatic Equation - minimum CPC size (Table 54.4)
• MCB / RCBO Selector - device selection per Reg 411
• Discrimination - upstream/downstream coordination
• Connected Load Total - maximum demand (Appendix A)
• Diversity - demand reduction factors
• Three-Phase Balancing - load distribution
• Power Factor Correction
• Ohm’s Law / Power - foundational calculations
• Ring Final Circuit - R1, R2, Rn checks
• EV Charger Installation - Section 722 compliance
• Motor Circuit - design per Reg 552
• Solar PV / DC Sizing - Section 712
• Earthing & Bonding - conductor sizing (Table 54.8)
• Lighting / Downlights - lumen and spacing calculations

--- 12 QUICK REFERENCE CATEGORIES ---
• Key Formulas - essential BS 7671 equations
• Zs Values - earth fault loop impedance tables
• Cable Capacities - current ratings by installation method
• Correction Factors - Ca, Cg, Ci grouping and thermal factors
• Voltage Drop - mV/A/m tables and permissible limits
• Conductor Resistance - R1+R2 reference values
• Earthing & Bonding - systems, conductors, and sizing
• Special Locations - bathroom zones, swimming pools, saunas
• IP Ratings - ingress protection code reference
• RCD Requirements - types, ratings, and where required
• Disconnection Times - maximum times by circuit type
• Insulation Resistance - minimum IR values by voltage

--- 8 PROFESSIONAL UTILITIES ---
• Amendment Tracker - follow all changes from the 18th Edition through Amendments 1-3
• CPD Logger - log continuing professional development hours with annual target tracking
• Dead Testing - digital schedule of test results for dead testing
• Live Testing - digital schedule of test results for live testing
• Visual Inspection - digital schedule of inspection checklist
• Digital Certificates - create and export EICR and EIC certificates as PDF
• EICR Coding Guide - quick reference for C1, C2, C3 and FI observation codes
• Part P Guide - interactive decision tree for Building Regulations Part P compliance

--- EXAM TOPICS ---
• Part 1 - Scope, Object and Fundamental Principles
• Part 2 - Definitions
• Part 3 - Assessment of General Characteristics
• Part 4 - Protection for Safety
• Part 5 - Selection and Erection of Equipment
• Part 6 - Inspection and Testing
• Part 7 - Special Installations or Locations
• Part 8 - Prosumers Installation
• Use of Appendices

--- BUILT FOR THE JOB SITE ---
Flash cards for quick revision. Mock tests with weighted scoring. Progress tracking with pie charts. Works offline. All data saved locally on your device.

Whether you’re preparing for your C&G 2382-18 exam, carrying out an EICR, or sizing cables on site – IET Wiring Regulations is the one app every electrician needs.

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