Graham Mackie

Supplementary protective equipotential bonding

Earth Leakage

Live Working 6: Zs At Db Ipefc Ipscc

Live Working 5: Ze

Live Working 2: Prove Dead before removing intermediate barriers

Series Paralel Resistive Network Calc 2

Parallel Circuit Calculations

Series circuit calculation 2

2391 Scenario based questions 2

2391 Scenario based questions

All-in insulation resistance test on a 3 phase system

Ring continuity test

Voltage drop 3 periodic 2

Voltage drop 2 periodic 1

Volt drop basic calculations

Cable sizing steps (Initial)

Fault current / Limiting temperature disconnection time calculations

18th Edition Exam Success 6

18th Edition Exam Success 5

18th Edition Exam Success 4

18th Edition Exam Success 3

18th Edition Exam Success 2

Parallel circuit calculations BASICS

Circuits which fail earth-fault-loop-impedance Rule of Thumb values

Cable resistance calculations, the basics 2

Protective conductor size selection/confirmation via the adiabatic equation

Cable resistance calculations, the basics 1

Insulation Resistance test with Links for a 3 phase all-in test

Supplementary protective equipotential bonding testing and calculations