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NEC Article 800: Communications Circuits — Complete Checklist & Field Guide

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Why this guide? Article 800 of the 2017 National Electrical Code (NEC) provides the core rules for
communications circuits and equipment. This post turns the code into a practical checklist
with inspector/AHJ expectations, common pitfalls, and documentation tips.

Table of Contents

  1. Printable / Interactive Checklist Table
  2. Quick Checklist (Clause‑by‑Clause)
  3. Detailed Explanations & Field Notes
  4. Submittal Documentation Package
  5. Commissioning & Inspection Steps
  6. FAQs

Printable / Interactive Checklist Table

Use this table for site walks and inspections. Tick Yes/No/N/A, add notes, and record photo/evidence IDs.

# NEC 2017 Clause Requirement (What to Verify) Field Status Notes / Location Evidence (Photo/Doc Ref)
1 800.1 Scope applies to communications circuits/equipment; confirm project falls under Art. 800.

2 800.2 Key definitions understood: Abandoned Communications Cable, Communications Circuit, CI Cable, Point of Entrance.

3 800.3 Apply related requirements (hazardous locations, ducts/air spaces, etc.) where referenced.

4 800.18 Install communications equipment per listing and code; follow manufacturer instructions.

5 800.21 Maintain access to electrical equipment behind removable panels designed for access.

6 800.24 Mechanical execution of work: secure/support cables, protect from physical damage; neat workmanship.

7 800.25 Remove abandoned communications cables unless identified for future use.

8 800.26 Limit spread of fire/smoke; maintain required ratings at penetrations and transitions.

9 800.44 Outside/Overhead: clearances above roofs, separations from power conductors; coordinate with utility.

10 800.110 Raceways & cable routing assemblies permitted for comms wiring; observe fill & type limitations.

11 800.113 Inside buildings: plenum/risers/trays/listed ducts-by-design; equipment rooms; multi/one-two family rules.

12 800.133 Separation from power/non–power-limited circuits; dedicated support—no using other cables for support.

13 800.154 Use correct listed communications cable types/routing assemblies by space (CMP/CMR/etc.).

14 800.156 Provide required communications outlet(s) in dwelling units.

15 800.170 Listing for protectors and equipment; ensure suitability for the environment.

16 800.173 Drop wires/cables meet listing and installation requirements.

17 800.179 Cable types: CMP/CMR/CMG/CM/CMX/CMUC; CI/hybrid cables used only where listed/allowed.

18 800.180 Grounding devices listed for the application; intersystem bonding provided as required.

19 800.182 Listed cable routing assemblies & communications raceways (plenum/riser/general purpose) used correctly.

Quick Checklist (Clause‑by‑Clause)

  • 800.1 Scope — Article 800 covers communications circuits/equipment; verify applicability.
  • 800.2 Definitions — Abandoned cable, CI cable, point of entrance; ensure team alignment.
  • 800.3 Other Articles — Apply cross-referenced requirements (e.g., plenums, hazardous locations).
  • 800.18/800.21/800.24 — Installation per listing; maintain access; neat, protected workmanship.
  • 800.25/800.26 — Remove abandoned cables; limit spread of fire/smoke, maintain ratings.
  • 800.44 — Overhead/entrance rules and clearances observed.
  • 800.110/800.113/800.133 — Proper raceways/routing; plenum/riser rules; separation/support.
  • 800.154/800.156 — Listed cable types by space; provide dwelling outlets.
  • 800.170/800.173/800.179/800.180/800.182 — Listing, cable types (CMP/CMR/etc.), grounding devices, and routing assemblies.

Submittal Documentation Package

  • Listing sheets for comms cables (CMP/CMR/CMG/CM/CMX/CMUC), CI/hybrid where used; protectors and devices.
  • Intersystem bonding/grounding device details; point-of-entrance diagram.
  • Raceway/routing fill calculations and separation from power circuits.
  • Plenum/riser declarations and cable schedule by space.
  • Riser diagrams, trays/raceway layouts, penetration/firestop details.
  • As-builts and inspection photos (supports, labels, penetrations, equipment access).

Commissioning & Inspection Steps

  1. Verify cable types vs. spaces and listings (CMP/CMR/etc.).
  2. Check raceway/routing assemblies and fill; confirm required separations.
  3. Inspect supports, securement, workmanship; correct any damage.
  4. Remove/tag abandoned cables; document locations.
  5. Validate fire/smoke spread controls at penetrations and transitions.
  6. Confirm overhead/entrance practices and POE protection.
  7. Verify grounding devices/intersystem bonding connections.
  8. Complete photo log and update as-builts; deliver O&M.

FAQs

Do Chapters 1–7 always apply to Article 800?
Chapter 8 governs communications and is generally not subject to Chapters 1–7 unless Chapter 8 says otherwise.

Which cable type is allowed in plenums?
Use listed plenum cable (e.g., CMP) or listed plenum routing assemblies/raceways as permitted.

What about abandoned communications cables?
Remove them unless identified for future use to reduce fuel load and clutter.

Code basis: NEC 2017, Article 800 (Communications Circuits). Coordinate with utility requirements and related Articles (725, 760, 645, and Chapter 5 for hazardous locations).

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