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2020 NEC Code Reference

Indexed GIES field reference for article lookup, bookmarks, and local notes. Full NEC text is not bundled.

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This section is an index and note layer only. Use your licensed 2020 NFPA 70 / NEC book, NFPA LiNK access, or AHJ-published adopted code source for exact enforceable text. Do not treat this page as the full code.

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Code Quick Cards

Short GIES field cards are grouped directly in the code tab below. Use the full cards when you need the detailed bullet list, exceptions, and gotchas.

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Chapter 3 - Wiring Methods / Materials

1
Box Fill
Ref: 314.16 · box fill, device yoke, EGC, clamps

Boxes shall be of sufficient size to provide free space for all enclosed conductors. Exception/watch: Check listed box volume markings and applicable raceway-body rules.

Chapter 3 - Wiring Methods and Materials

3
Article 300 - General Requirements for Wiring Methods and Materials
Chapter 3 - Wiring Methods and Materials · Wiring Methods

General wiring method rules: protection, securing/support, boxes, raceways, wet locations, and underground basics.

Keywords: wiring method, raceway, cable, support, secure, wet location, underground

Related: 310, 314, 358, 352

Article 312 - Cabinets, Cutout Boxes, and Meter Socket Enclosures
Chapter 3 - Wiring Methods and Materials · Enclosures

Cabinets and enclosures including wire bending and conductor space concerns.

Keywords: cabinet, enclosure, meter socket, wire bending

Related: 314, 408

Article 314 - Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosures
Chapter 3 - Wiring Methods and Materials · Boxes

Box fill, pull boxes, junction boxes, device boxes, conduit bodies, and handholes.

Keywords: box fill, junction box, pull box, device box, conduit body, 314.16

Related: 300, 370, Chapter 9

Chapter 9 - Tables

1
Article Chapter 9 - Tables
Chapter 9 - Tables · Tables / Calculations

Conduit fill, conductor properties, resistance/reactance, and table-based calculations. Use exact NEC tables for final values.

Keywords: conduit fill, wire fill, table 1, table 4, table 5, resistance, reactance

Related: 300, 310, 314