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800.3(H) Grounding of Metal Shields of Communications Cables

Revision/New

Change Summary

  • New subsection addresses requirements of grounding shields in communications systems.

NEC®Text

Article 800 General Requirements for Communications Systems
800.3 Other Articles.
(H) Bonding and Grounding of Cable Shields. The requirements of 250.4(A)(5) shall apply to the metal shields of cables used for communications.

Material taken from the National Electric Code. is reprinted with permission from NFPA 70., 2023 edition. National Electrical Code®, Copyright 2022, National Fire Protection Association, Quincy, MA. All rights reserved.

Expert Analysis

A new subsection has been added to address the requirements to ground metal cable shields due to the possibility of the shields becoming energized and thereby pose a fire or shock hazard. In addition, grounding shields is a good practice in efforts to reduce noise and interference.

Figure 1

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