The NEC, BS 7671 and AS/NZS 3000 are not three editions of one book. The NEC (NFPA 70) is the electrical installation code used across the United States, BS 7671 is the wiring regulations standard used in the UK, and AS/NZS 3000 is the wiring rules standard used in Australia and New Zealand. An installer moving between regions carries the working method across — current edition, local adoption, inspection route — not the detailed rules, which are never swapped one for another.
Key Takeaways
- The NEC is an adopted code; BS 7671 and AS/NZS 3000 are wiring standards — compare by dimension, never by swapping rules.
- The only NEC content carried across regions here is the continuous-load fact: breaker at 125% of charger current.
- What transfers is the method: confirm edition, adoption, earthing and protection, and the inspection route, per region.
Three Documents, Three Kinds of Authority
The first difference is what kind of document each one is. The NEC is a code: NFPA publishes it, and it binds where a state or local jurisdiction adopts it. BS 7671 and AS/NZS 3000 are standards: published rulebooks that regulations, contracts and industry practice point to, with the edition in force set regionally. So the honest comparison is by dimension, not rule against rule — and where a cell below would need the text of BS 7671 or AS/NZS 3000, it gives the confirmation route instead: their content belongs in the current edition open in front of you, not in a summary. Inspection and sign-off differ by region too, so confirm that route — local authority practice in the US, current official guidance elsewhere — before work starts.
The Comparison: Dimension by Dimension
| Dimension | NEC (United States) | BS 7671 (UK) | AS/NZS 3000 (Australia / New Zealand) |
|---|---|---|---|
| What it is | Installation code, published as NFPA 70; binds through adoption by the jurisdiction where you work | Wiring regulations standard; confirm how the current edition is referenced for your work | Wiring rules standard; confirm the edition in force in your state or territory, and any local variations |
| EV charging treatment you can state | EV charging is a continuous load: the breaker is sized at 125% of the charger current | Ask where EV charging sits in the current edition and in the IET Code of Practice | Ask where EV charging sits in the current edition and in local guidance |
| Sizing | 32 A charger → 40 A breaker; 40 A → 50 A; 48 A → 60 A | Do not carry US arithmetic across — work the method in the current UK text | Do not carry US arithmetic across — work the method in the current local text |
What Actually Transfers Between Regions
The habits transfer even though the rules do not — the same opening questions in all three regions:
- Edition: which edition is in force here, today — as of October 2026, not the one you trained on.
- Adoption: who has adopted or referenced it for this class of work, with what local variations?
- Earthing and protection: what does this region’s text expect for the supply arrangement in front of you?
- Inspection route: who inspects, certifies or must be notified, in what order relative to energising?
Product certification is the layer underneath all three — the OSHA NRTL listing route in the US, per-model marking or certification routes elsewhere. Our guide to EV charger certifications explained sets out the mark families; the Australia certification guide covers the route beside AS/NZS 3000.
Where EVDANCE Hardware Sits in This Picture
EVDANCE builds market versions of each model, and the listing on the product page is the installer’s starting point. The EV-ACT5006T 48 A wall charger carries ETL, FCC and CE marks and is rated for hard-wired fitting or a NEMA 14-50P — in the US, that 48 A rating is exactly where the NEC sizing above lands, on a 60 A breaker. The EV-ACT3204PE 22 kW three-phase wallbox carries CE. Request the exact model’s documentation pack before quoting, through the reseller and distributor programme or contact us.
Frequently Asked Questions
Can I work to NEC rules on a UK or Australian installation?
No. Each region’s document governs work in that region. What transfers is the checking method — edition, adoption, earthing and protection, inspection route — not any rule or sizing figure.
Which edition of the standard should I use?
The edition in force where the work happens. Editions change and jurisdictions adopt them at different times, so confirm against the current text and the local authority for the job rather than relying on the edition you already own.
Does a certified charger remove the need to check installation rules?
No. The mark says the unit was tested as a product; the installation document governs how it is wired into a building. A compliant job satisfies both — which is why breaker sizing is an installation question, not a product question.
Related Reading
- EV Charger Certifications Explained: CE, UKCA, UL, ETL, CB and What Buyers Should Ask For
- EV Charger Certification for Australia: SAA, RCM and EESS Explained
