Installation Rules exam guides

Free guides for South African electricians preparing for the SANS 10142 Installation Rules exams, from definitions and regulations to calculations and exam technique.

Paper 2: calculations and installations

Voltage drop, PSCC, cable selection, distribution boards and the mistakes that cost marks.

DB Layout, Cable Selection & Protection – Installation Rules Exam Guide

Complete guide for electricians: DB layout, cable selection, protection devices, fault level calculations, SANS 10142 exam prep, and verification procedures.

17 April 2026

Distribution Board (DB) Layout and Protection – Installation Rules Exam Guide

Learn distribution board (DB) layout and protection requirements for the Installation Rules exam. Understand circuit breakers, earth leakage protection, fault…

15 April 2026

Cable Selection Basics for Electrical Installations (SANS 10142 Guide)

Learn the basics of cable selection for the Installation Rules exam. Understand current carrying capacity, voltage drop, installation methods and conductor sizing…

13 April 2026

Installation Rules Exam Paper 2 Mistakes That Cause Failures (And How To Avoid Them)

Common mistakes that cause Installation Rules Paper 2 exam failures and practical strategies to avoid them when preparing for the SANS 10142 exam.

9 April 2026

Installation Rules Exam Paper 2 Calculations: Voltage Drop, PSCC & SANS 10142 Guide

Master Installation Rules Exam Paper 2 calculations. Practice voltage drop, PSCC, fault current and SANS 10142 compliance questions used in South African…

7 April 2026

Installation Rules Exam Paper 2 Practice Questions

Practice questions for Installation Rules Exam Paper 2 covering voltage drop calculations, PSCC, touch voltage, verification procedures and SANS 10142 installation…

3 April 2026