NVQ L4 Electrician study plan

Draft a risk assessment and method statement for replacing a three-phase distribution board, applying safe isolation to HSG85 and the Electricity at Work Regulations 1989.

Calculate prospective fault current and verify disconnection times for TN-S and TN-C-S supplies against BS 7671 Chapter 41, selecting the protective device from measured loop impedance.

Select cable size and IP rating for three contrasting environments using BS 7671 Appendix 4 and Appendix 5 external influence codes, showing voltage drop and adiabatic checks.

Build an environmental compliance checklist covering WEEE disposal, hazardous waste segregation, and lamp and battery recycling obligations for a typical commercial job.

Design a 32 A ring final circuit and a 20 A radial circuit for a small workshop, justifying each protective device rating from Ib, In and Iz values.

Verify earthing and bonding conductor sizes against BS 7671 Table 54.8 and confirm main protective bonding of incoming services is correctly specified.

Sequence the safe isolation and dead testing procedure for a new consumer unit, stating the correct instrument, range and expected readings for each test.

Record insulation resistance, continuity of protective conductors, and RCD trip times in a schedule of test results and interpret each against BS 7671 limits.

Complete an Electrical Installation Condition Report for an existing 12-way single-phase board, applying the correct classification codes C1, C2, C3 and FI to each observation.

Draft an Electrical Installation Certificate and a Minor Electrical Installation Works Certificate, matching each to the scope of work it legally covers.

Interpret a set of measured test values against BS 7671 tables and identify where departures require reporting rather than rectification.

Write the extent and limitations section of a condition report so that the scope of inspection is unambiguous and defensible.

Apply a half-split and logical sequence method to find faults in a lighting circuit, a ring final circuit and a motor control circuit, documenting each step taken.

Diagnose high-resistance joints and insulation breakdown from loop impedance and insulation resistance readings, distinguishing the two from the measured values alone.

Investigate nuisance RCD tripping on a multi-circuit board, ruling out cumulative earth leakage, shared neutrals and moisture ingress in a written logical order.

Distinguish between the four common fault categories of open circuit, short circuit, earth fault and incorrect polarity, and state the test that confirms each.

Produce a resource-levelled programme for a six-week commercial refurbishment with defined activity durations, dependencies and critical path.

Cost labour, materials and plant for the same project, and identify the procurement lead items that drive the programme start date.

Write a supervision plan allocating competent persons to first fix, second fix and commissioning, with named duties for each stage.

Prepare a commissioning and handover schedule covering witness testing, client demonstration and the issue of as-fitted drawings and certificates.

Build a twelve-month planned preventive maintenance schedule for a commercial building covering distribution boards, emergency lighting, fire alarm and fixed equipment.

Set out how thermographic survey, insulation resistance trend data and portable appliance testing feed into condition-based maintenance decisions.

Compare JCT and NEC contract forms on payment terms, variations and defect liability periods, and state the practical difference for an electrical subcontractor.

Map the duties imposed by CDM 2015, EAWR 1989 and Building Regulations Part P onto the roles of client, principal contractor and competent person.

Assess a 6 kWp roof-mounted solar PV scheme with battery storage for grid connection limits, DNO notification and the G98 or G99 application route.

Specify load management for an EV charge point installation where the existing supply capacity is the limiting factor, and state the protective measures required.

Evaluate heat pump and solar thermal options against fabric-first energy efficiency measures for a given dwelling, comparing capital cost and running cost.

Explain how Part L, SAP assessment and metering requirements influence the specification of a small commercial lighting and control scheme.

Sit two full timed mock papers under exam conditions and mark them against the official answer criteria rather than self-assessment.

Rank every wrong answer by domain and rebuild a one-page revision sheet for the three weakest areas.

Rehearse spoken answers to scenario questions on fault diagnosis and inspection, timing each response to two minutes.

Recite from memory the key regulation numbers, classification codes and certificate types most frequently examined.