Disclaimer

What CircuitWise UK is

CircuitWise UK (“the site”, “we”, “our”) is a free, interactive educational tool for learning about UK domestic electrical wiring. It comprises a drag-and-drop circuit canvas, a library of written articles, and guided practice puzzles, all intended to help users build conceptual understanding of how UK home circuits go together.

Who built it

CircuitWise UK is built and maintained by a DIY enthusiast with an interest in UK home electrics. The author is not a qualified or registered electrician and is not a member of any competent person scheme (such as NICEIC, NAPIT, ELECSA or Stroma). The content reflects publicly documented UK wiring conventions, cross-referenced where possible against standards such as BS 7671 (the IET Wiring Regulations) and the IET On-Site Guide, but it has not been independently verified by a qualified person.

What it is not

• It is not professional electrical advice.
• It is not a substitute for a registered electrician, a qualified designer, or formal inspection and testing.
• It is not a qualification, certification or training course.
• It is not certified electrical design software. The built-in “sanity checks” are simplified rules of thumb. They do not perform full BS 7671 design calculations — including but not limited to cable sizing under the relevant installation method, earth fault loop impedance (Zs), prospective fault current, voltage drop, grouping, ambient temperature, RCD selection or selectivity.
• It is not a how-to guide for carrying out electrical installation work. Nothing on the site should be taken as instruction to attempt real wiring.

UK regulatory context

Electrical installation work in dwellings in England and Wales is regulated under Part P of the Building Regulations. Certain categories of work (including, for example, new circuits and consumer-unit replacements) are notifiable and must be carried out or certified by a person registered with a Competent Person Scheme, or otherwise inspected and certified by the local authority. Scotland and Northern Ireland have their own equivalent regimes.

BS 7671 (the IET Wiring Regulations) is the authoritative standard for electrical installations in the UK. Always refer to the current edition. Always isolate and prove dead before working on any circuit. If in any doubt at all, stop and consult a registered electrician.

Accuracy and content

We try to keep the content accurate, but we make no representations or warranties of any kind, express or implied, about its completeness, accuracy, reliability or suitability for any purpose. UK standards change. Manufacturer guidance changes. Site-specific conditions vary. You must verify anything you intend to act on against current authoritative sources and competent professional advice.

If you spot something that looks wrong, please get in touch. Corrections from qualified electricians are particularly welcome.

Use at your own risk

You use CircuitWise UK at your own risk. To the maximum extent permitted by law, the authors and operators of the site accept no liability for any loss, damage, injury, cost or expense arising from or in connection with use of the site, its content, or any reliance placed on it. Nothing in this disclaimer is intended to exclude or limit liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot lawfully be excluded.

Get a registered electrician

For any real electrical work in a UK home, engage a registered electrician who is a member of a Competent Person Scheme. You can search for one via electricalcompetentperson.co.uk or directly via the scheme operators’ own directories.