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New Zealand · Registration exams

EWRB exams for electricians: theory and regulations

On New Zealand’s own training pathways, registering as an Electrician means passing two written exams: Electricians Theory and Electricians Regulations. The Electrical Workers Registration Board (EWRB) decides what they cover, and Aspeq Limited delivers them. The EWRB exams are one step. You also need work experience, and the other requirements depend on your pathway.

  • 3 hoursLength of each exam, from EWRB’s help page
  • $149.50Fee per exam, before goods and services tax
  • Within 24 hoursWhen EWRB says results are released
Where to studyHow the test works

Updated November 2026 · Written from the EWRB Teaching Guidelines for Electrician (version 1, November 2026)

Key facts

At a glance

Unclear questions
If you find a question ambiguous, you can comment on it, and Aspeq decides whether it should be rewritten
Extra time
Usually up to 30 minutes, EWRB says, though more may be considered
Questions and pass mark
EWRB’s exams page doesn’t list either. Aspeq says your booking confirmation gives the format for your exam
Exams in 2024/2025
3,177 Electricians Theory exams, with 1,632 passes, and 2,202 Electricians Regulations exams, with 1,240 passes, EWRB’s 2025 annual report says

How it works

How the EWRB exams work

  1. Get an Electrical Worker number first. If you don’t have one, EWRB has you request an Electrical Worker Account through its online portal.
  2. Register in Aspeq’s system and book each exam online. When you enrol, you name your training provider, which has to confirm you’re eligible to sit.
  3. The exams run online throughout the year at Aspeq facilities, and Aspeq says a trained invigilator is in the room for the whole exam.
  4. Your training provider may include the exam fee in its course fee. For a resit, the fee is asked for when you apply.

Topics

What the two exams cover

EWRB’s Teaching Guidelines for Electrician split the syllabus into numbered sections, grouped here into eight. Each item has a letter for how well you need to know it: A for thorough knowledge, B for good working knowledge, C for general knowledge and D for basic understanding.

01

Supply systems and protection (sections 12 and 13)

How power reaches an installation in New Zealand, and the devices that protect people and cables.

Key points (4)
  • You draw and label the supply system from generation through transmission to distribution, and show how the three-phase four-wire system supplies three-, two- and single-phase consumers.
  • For the multiple earth neutral (MEN) system, you explain how it’s set up in New Zealand and what a missing MEN link does to voltage to earth, the fault current path, earth loop impedance and protective devices.
  • Residual current devices (RCDs) give supplementary protection. Those installed for protection against shock must be type A for New Zealand, and you test them for compliance with regulation 24.
  • An isolating transformer gives maximum safety with one appliance connected. With two or more, their earth continuity conductors are bonded together at the transformer but not earthed.
02

Personal electrical safety (section 14)

The effects of shock, isolation procedures and safe working practices on site.

Key points (4)
  • Isolation covers the safety tag system, locking off, danger tags and the prove-test-prove rule of testing before you touch.
  • Outdoors or in damp places, appliances should be supplied from an isolating transformer or an RCD.
  • Electricians aren’t permitted to work on live high voltage lines or equipment without the asset owner’s written approval.
  • Employers must provide and maintain safe equipment and personal protective equipment, and employees must use what they’re given.
03

Cables, switchboards and lighting (sections 16, 17 and 27)

Choosing and installing cables, switchboard requirements, and lamp types.

Key points (4)
  • You size cables for sub-circuits, mains and sub-mains with AS/NZS 3000 and AS/NZS 3008.1.2, allowing for derating, grouping, voltage drop, short circuit capability and earth loop impedance.
  • You also work out maximum demand for domestic and non-domestic mains and sub-mains under AS/NZS 3000.
  • Switchboard items include the special requirements for main switchboards, MEN switchboards and distribution switchboards.
  • Lighting covers lamp types from sodium vapour to halogen, colour rendering, the stroboscopic effect of discharge lamps and faults in fluorescent fittings.
04

Testing, inspection and certification (sections 19 to 21 and 26)

Test instruments, testing an installation in order, and the paperwork that follows.

Key points (4)
  • Instruments covered include insulation resistance, earth loop impedance and RCD testers, and phase rotation meters.
  • Visual and mechanical checks come before instrument testing, as AS/NZS 3000 requires.
  • Regulation 70 lists the installation work that a registered electrical inspector must inspect before it’s connected to supply.
  • You complete a Certificate of Compliance no later than three days after the work is finished, give the customer a copy within 20 days of completing it, and keep a copy for three years.
05

Transformers, motors and alternators (sections 15 and 22 to 25)

How transformers and motors work, how motors are started, and how they’re protected.

Key points (4)
  • Transformer calculations use voltage, current and turns ratios and kilovolt-ampere ratings.
  • For three-phase induction motors you explain what happens when one supply line is open circuited on a star or a delta connected motor, and how capacitors correct the power factor.
  • Reduced voltage starters covered are star-delta, auto transformer, primary resistance and electronic soft starters.
  • Motor protection covers excess current, mechanical overload, under voltage, phase failure and phase reversal.
06

Electrical theory and electronics (sections 11 and 18)

The circuit basics, and the semiconductor devices you meet in installations.

Key points (3)
  • The basic electrical theory items, such as Ohm’s law and direct current (d.c.) series and parallel circuits, are all at level C.
  • Semiconductor devices can be damaged during insulation resistance testing, and by transient voltages on supply circuits.
  • Rectifiers run from a single diode as a half-wave rectifier to three-phase half and full wave rectification, and their output is filtered with capacitors, chokes and resistors.
07

The regulations prescription (section 28)

The law and standards the Electricians Regulations exam draws on.

Key points (4)
  • The main documents are the Electricity (Safety) Regulations 2010, AS/NZS 3000 with its amendments and New Zealand Electrical Code of Practice (NZECP) 34, all at level A, with the Electricity Act 1992 at B.
  • Other listed standards are AS/NZS 3008.1.2, 3760, 5761 and 5762 at B, AS/NZS 3012 and 3019 at C, and NZECP 54 at B.
  • Extra questions come from companion standards and other codes of practice cited in Schedule 2 of the Regulations.
  • Questions can need underlying theory too, such as how insulation resistance and in-service RCD tests are carried out.
08

Practical assessment stages (sections 29 to 32)

The three stages of hands-on skills for applicants who don’t hold a recognised certificate.

Key points (3)
  • Every skill must be graded C, competent. A skill that wasn’t assessed is graded NC, not competent, with the reason recorded.
  • Stage 1 starts with cardiopulmonary resuscitation training, safe working and making two single-phase cord extension sets.
  • Stage 3 includes wiring and testing motors and starters, testing existing single- and three-phase MEN installations to AS/NZS 3019, and a first aid course.

Test day

What to bring on exam day

  • Physical photo ID, such as a passport or driver’s licence. Aspeq doesn’t accept photocopies, and your booking confirmation may list other ID rules
  • The reference material your booking lists. EWRB says Aspeq’s online booking tells you which applies to your exam
  • No laptop of your own. Aspeq says most of its exams run on a locked-down laptop it provides at the centre

Before you go

  1. Arrive 30 minutes early, as Aspeq asks, for the identity check and seating. Aspeq says late arrivals may not be let in.
  2. If you need extra time or a reader, apply in writing on Aspeq’s extra assistance form and email it to Aspeq. EWRB recommends talking it over with your training provider first.
  3. Check your booking’s rules for changing or cancelling. Aspeq says that if you don’t turn up, the fee generally isn’t refunded.
EWRB: Exams and practical assessmentsEWRB’s exams page links to Aspeq’s booking site for EWRB examinations.

Study options

Where to study

The study options page adds where the old EWRB papers are, which approved providers teach both exams, and a suggested study path.

OptionPriceFree to useLinks
Official sources
Teaching Guidelines for Electrician, from EWRBThe prescriptions for both written exams and the three practical stagesThe Ministry of Business, Innovation and Employment prepared it for tutors. EWRB publishes guidelines for six other registration classes too.
Free PDFThe whole document
See EWRB’s teaching guidelines ↗
Find a training provider, from EWRBEWRB’s list of approved providers, with a filter by region and courseEach entry shows the courses a provider is approved for, from exam tuition to safety training and competence programmes.
Free to searchThe whole list
Search the provider list ↗
Courses
EWRB Electrician Regulations or Theory Exam Refresher CourseOnline refresher for either written exam, from the Western Institute of Technology at Taranaki (WITT)Enrolment is open from 1 February to 1 November each year. WITT says Aspeq runs the exams, with separate entry forms and fees.
On WITT’s course pageTwo course preview videos
See WITT’s refresher course ↗
Guides
Electrical subject guide, Open Polytechnic libraryLibrary guide written for Open Polytechnic’s electrical studentsBesides the old EWRB papers, it links a formulae summary for EWRB exams and a Supervision Companion Guide.
Free to viewThe whole guide
Open the library guide ↗

Prices and ratings checked November 2026.

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FAQ

Common questions

Is the Electricians Regulations exam open book?

Yes. EWRB’s teaching guidelines say regulations exams are open book and can cover any part of the regulations prescription. They also expect enough electrical theory to show how a regulation or standard is applied.

Does the theory exam test regulations too?

Yes. The theory exam covers any item marked A or B in the theory prescription, and it may include C or D items. It also tests parts of the regulations you’re expected to know without looking them up, such as the minimum insulation resistance values in section 8 of AS/NZS 3000, and the maximum leakage currents and tripping times for RCDs in regulation 24. Where a question asks you to work out a cable size, extracts from the standards are included in the exam.

What happens if you fail one of the EWRB exams?

Because the exams are online, you can resit almost straight away. After three attempts at an exam within three months, though, EWRB requires a three-month stand-down from the date of the third failed attempt, and EWRB expects you to study further, or train if required, in that time. The exams are multiple choice and can’t be re-marked. A review can award a mark when a question wasn’t phrased clearly, but EWRB says a review rarely finds more than one extra mark.

Where do you see your exam results?

In Aspeq’s Candidate Portal, using the account you booked with. You can also ask for an examination review there. Aspeq says results may be shared with the regulator or training provider linked to your qualification.

Do you need the practical assessments as well?

It depends on your pathway, and the registration page lists the ones that need them. Electricians Stages 1, 2 and 3 are separate assessments of the skills you’ve picked up at work. Approved training providers run them and send your assessment record to EWRB.

Sources: Electrical Workers Registration Board · Aspeq and 6 more. Checked November 2026.

Rules and fees can change, so check the official site before your test.

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