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NEC Top 100 Cheat Sheet

This document provides a cheat sheet of the top 100 NEC codes for residential wiring, covering general wiring requirements, box and fitting standards, and grounding and bonding regulations. Key codes include installation per manufacturer instructions, proper box fill calculations, and requirements for grounding electrodes. It serves as a quick reference for ensuring compliance with electrical safety standards.

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kaiden smith
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1K views1 page

NEC Top 100 Cheat Sheet

This document provides a cheat sheet of the top 100 NEC codes for residential wiring, covering general wiring requirements, box and fitting standards, and grounding and bonding regulations. Key codes include installation per manufacturer instructions, proper box fill calculations, and requirements for grounding electrodes. It serves as a quick reference for ensuring compliance with electrical safety standards.

Uploaded by

kaiden smith
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Top 100 NEC Codes for Residential Wiring - Cheat Sheet

General Wiring Requirements


- 110.3(B) - Equipment must be installed per manufacturer instructions.
- 110.12(A) - Workmanship must be neat and free from damage.
- 110.14(A) - Conductors must be properly terminated using approved methods.
- 110.26(A) - 3' clearance in front of electrical panels.
- 110.26(D) - Lighting required in panelboard working space.
- 300.4(D) - Protection plates required if cables are <1¼" from stud face.
- 300.5 - Minimum burial depths for underground wiring.
- 300.14 - 6" free conductor length in boxes.
- 300.15 - All splices must be in a junction box.
- 300.17 - Fill capacity of raceways must not be exceeded.

Boxes and Fittings


- 314.16(A) - Box fill calculations based on wire size and device count.
- 314.27(A) - Boxes supporting ceiling fans must be rated for fan support.
- 314.23(B) - Boxes must be securely fastened.
- 314.20 - Boxes must be flush with finished surface (±¼").
- 314.21 - Boxes must be accessible; no covering by drywall, etc.

Grounding and Bonding


- 250.50 - All grounding electrodes must be bonded together.
- 250.52(A)(3) - Ground rods must be 8' long and fully driven.
- 250.53(G) - Ground rods must be at least 6' apart.
- 250.64(E) - Grounding electrode conductors must be protected.
- 250.104(A) - Metal water pipes must be bonded.

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