Spark is the fastest way for electricians to look up NEC sections, run conduit-fill calculations, and ask plain-English code questions — even with gloves on.
Find any article in the 2026 Code in seconds. Plain-English summaries, the actual rule text, and tap-through definitions.
NEC Tables 1, 4, 5, and 250.122 baked in. Suggests the smallest legal size, warns on derates, sizes your EGC, even compares cost across raceway families.
Snap a panel, ask a question out loud. Spark cites the exact NEC section so you can verify the answer with the AHJ.
Sign in and your saved sections, history, and pricing overrides sync across every device.
The National Electrical Code (NEC) is the standard electrical installations are inspected against in nearly every U.S. jurisdiction. It's roughly a thousand pages of dense rules that change every three years.
Spark is built for the people who actually have to work from it — journeyman and master electricians, apprentices studying for the license exam, estimators sizing a job, and inspectors double-checking a call. Anything that's faster than flipping through the codebook one-handed at the top of a ladder.
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