EWRB Electrical study materials
EWRB Electrical study resources

EWRB Electrical study plan

EWRB Electrical · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Electrical Theory and Practice

  • Define and apply Ohm's law and the power equation to at least 20 numeric circuit problems without reference notes

  • Calculate equivalent resistance, current and voltage drops for series, parallel and series-parallel networks

  • Convert between units and prefixes (milli, micro, kilo, mega) accurately across worked examples

  • Draw and label circuit diagrams for 5 given word problems, stating assumed values

Your checkpoint

A worked problem set of 30 circuit calculations with answers and a one-page formula sheet written in your own words

Week 2

Electrical Theory and Practice

  • Explain the behaviour of resistance, inductance and capacitance in AC circuits and sketch phasor relationships

  • Calculate impedance, current and phase angle for simple series RLC circuits

  • Compute real, reactive and apparent power and correct power factor in worked examples

  • Describe the operating principle of single-phase and three-phase transformers and induction motors

  • Solve 10 three-phase load and line-quantity problems

Your checkpoint

A scored 20-question self-test on AC theory, power factor and three-phase systems with corrections annotated

Week 3

Electrical Theory and Practice & Electrical Regulations, Standards and Certification

  • Apply theory to select protective device ratings and cable sizes for 5 given load scenarios

  • Explain the purpose of earthing, bonding and MEN in terms of theory and shock risk

  • Interpret circuit protection concepts (overcurrent, short circuit, earth fault) using calculated values

  • Summarise how theory underpins the requirements you will study in the regulations domain

Your checkpoint

Five written design calculations linking load current, cable current-carrying capacity and protective device rating, with justification notes

Week 4

Electrical Regulations, Standards and Certification

  • Map the structure and scope of the wiring rules and associated standards to common installation situations

  • State the inspection, testing and certification requirements for prescribed electrical work

  • Identify the classes of work, licensing boundaries and supervision obligations that apply to common tasks

  • Locate and quote relevant clauses for 15 scenario-based questions using an index rather than memory

Your checkpoint

A clause-reference table of 20 scenario questions with the standard or regulation cited for each

Week 5

Electrical Regulations, Standards and Certification

  • Describe the sequence and acceptance criteria for mandatory tests on an installation (continuity, insulation resistance, polarity, earth fault loop, RCD)

  • Complete a certificate of compliance style record for a fictitious installation with all fields justified

  • Distinguish requirements for domestic, commercial and special-location installations

  • Explain documentation, notification and record-keeping obligations after completion

Your checkpoint

A completed sample certification pack (test record sheet plus compliance certificate) for a described installation, with a checklist of every required field

Week 6

Practical Assessment and Safe Working

  • Apply the isolation and lock-out procedure to 5 described work scenarios and state verification steps

  • Carry out a written risk assessment for three electrical tasks, listing hazards, controls and residual risk

  • Select and justify PPE and test instruments for given tasks, stating their ratings and limitations

  • Describe safe approach distances, test-before-touch and proving of instruments

Your checkpoint

Three completed written risk assessments with isolation procedures and instrument selection justified for each

Week 7

Practical Assessment and Safe Working & Electrical Regulations, Standards and Certification

  • Demonstrate a structured fault-finding method on 5 described circuit faults, stating each test and expected result

  • Sequence a full safe isolation, testing and re-energisation routine and narrate each step

  • Explain emergency response for electric shock and arc flash in practical terms

  • Link each safe working practice to the regulation or standard that requires it

Your checkpoint

A written practical assessment script for one installation task covering isolation, testing, fault finding, re-energisation and the regulation behind each step

Week 8

Electrical Theory and Practice & Electrical Regulations, Standards and Certification & Practical Assessment and Safe Working

  • Complete two timed full-length practice papers under exam conditions and score them

  • Re-work every incorrect answer and write the correct reasoning for each

  • Revise the weakest three sub-topics identified by the practice papers

  • Recite key formulas and key regulation requirements from memory

Your checkpoint

Two scored practice papers with a one-page remediation list and evidence that each weak area was re-tested

Milestones

Week 2: Score at least 80% on the AC theory self-test and correctly solve 8 of 10 three-phase problems unaided

Week 4: Correctly cite the governing clause or regulation for at least 16 of 20 scenario questions

Week 6: Produce three risk assessments that a peer or mentor judges complete, with no missing isolation or verification step

Week 8: Average at least 75% across both timed practice papers with no domain below 65%