Draft. Not legal advice.
Terms of Use
Status: Draft for implementation. Not legal advice. Last updated: 2026-08-19 Contact: [待确认: domain mailbox]
1. The service
Electrician's Home provides planning-reference calculators for electrical work. Optional paid features, if offered, are limited to account conveniences such as saved history or PDF export, subject to the published caps.
The service is not:
- a substitute for the current NEC, manufacturer instructions, or the authority having jurisdiction
- a professional engineering stamp
- a license, apprenticeship, or exam credential
- an official NFPA, UL, or manufacturer product
- a guaranteed circuit design
2. Planning reference only
Calculator outputs are estimates based on simplified tables and assumptions shown in the tool. You must verify against the current code, the equipment listing, the conductor and raceway manufacturer data, and the AHJ.
Approved disclaimer:
> Planning reference only. Verify against the current NEC, manufacturer data, and the authority having jurisdiction. This is not engineering advice or a license substitute.
3. Accounts
You may use core P0 calculators without an account. If you sign in with Google, you are responsible for that Google account. Do not share your login to evade plan limits.
4. Plans and payments
Listed prices on the live site may include monthly, annual, and lifetime PayPal checkout amounts. Those amounts are what PayPal charges if you complete checkout. They are not a promise that every future feature is included.
Lifetime, if purchased, covers only the Pro calculator conveniences that exist at the time of purchase, subject to caps. It does not include exam products, future standards packs, AI products, or a simulator that has not passed our quality gate.
We do not currently sell an exam question bank. Any old marketing that said otherwise is withdrawn.
5. Acceptable use
You may not:
- scrape, overload, or reverse-engineer paid endpoints
- resell the site as if it were code approval software
- upload malware
- pretend the outputs are stamped drawings
We may suspend accounts that abuse save/export endpoints.
6. Simulator
Any circuit lab on this site is an approximate teaching/visualization model. It can be wrong. It is not SPICE, not a multi-node professional solver, and not a training credential. Until we say a quality gate has passed, treat any simulator URL as unsupported.
7. Intellectual property
Site copy, layout, and software are ours or our licensors'. NEC® is a registered mark of NFPA. We are not affiliated with NFPA. Do not copy copyrighted exam items onto this site.
8. Disclaimer of warranties
The service is provided “as is.” We do not warrant that results are complete, current, or suitable for a particular installation.
9. Limitation of liability
To the maximum extent permitted by law, we are not liable for installation decisions, failed inspections, fire, shock, downtime, or exam outcomes based on use of the site. If a jurisdiction does not allow some limits, those limits apply only to the extent allowed.
10. Refunds
Refunds follow the Refund Policy.
11. Changes
We may change the product surface. We will not pretend a removed exam product still exists. Continued use after a material change means you accept the updated terms, once posted.
12. Contact
[待确认: domain mailbox]