Editorial standards
How these pages are written
Anyone can publish an opinion about wiring. These are the rules I hold myself
to, so you can judge for yourself how much weight to give what you read here.
Six standards
Every requirement points to its source
When a page says something is required, the article of the National Electrical Code is
named. You can look it up and check me. Where a statement is my judgement rather than a
rule, the text says so in those words.
The edition is always stated
The NEC is a model code. States and counties adopt different editions, and an existing
installation is normally judged by the rules in force when it was built. Guides say which
edition they follow and flag where local adoption changes the answer.
Written from the field, not from other websites
The examples come from installations I have stood in front of. Where I rely on published
data, such as manufacturer tables or national cost figures, the source is named on the page.
Costs are ranges, never quotes
Prices on this site are typical ranges including labor, meant to tell you whether something
is a small job or a large one. They exclude permits and repairs to finishes, and they vary
widely by region. No page can price your house.
Nobody pays to appear here
No advertising, no sponsored guides, no affiliate links and no referral fees. No brand is
named in exchange for anything. Where a brand is named, it is because the finding is about
that equipment.
Corrections happen in public
If a page is wrong it gets corrected, and the change is noted at the bottom of that page
with the date. Pages that can no longer be kept accurate are taken down rather than left
online.
Review and dating
Every guide carries the date it was last checked. Guides are reviewed at least once a year,
and again whenever a new edition of the code changes something they cover. A page that has not
been reviewed in over a year says so at the top.
What this site is not. These pages are general information. They are not an
inspection, not an approval, and not advice about one specific installation. No page here can
tell you whether your own system is safe. For that you need someone in front of your panel,
and for the work itself you need a licensed electrician and, where required, a permit.
Hold me to it
Think something here is wrong?
Send it to me with the page and the sentence. If you are right, it gets corrected and the
correction is dated. That is the whole point of writing the standards down.
These standards were last updated on August 28, 2026. Written and maintained by
ing. M Rahmouni.