scope:

This document provides methods for shipboard bonding, grounding, shielding, and the use of nonmetallic materials for electromagnetic interference (EMI) reduction, intermodulation interference (IMI) reduction, protection of personnel from electrical shock, and protection of electronic equipment from an electromagnetic pulse (EMP). In addition, requirements for the installation of shipboard ground systems are provided.

The requirements specified herein apply to all ships, including submarines and nonmetallic hull ships, and are to be applied during ship construction, overhaul, alteration, or repair. Certain requirements may be applied by ship's company or other personnel, as needed. Where conflicts exist between the requirements of this document and other publications, specifications, standards, or drawings, NAVSEA should be notified of the conflicts. When this document is invoked on a ship, all requirements specified herein are not automatically invoked, only those that pertain to that particular ship. Due to cost impact, the EMP protection requirements specified herein are not to be implemented routinely as part of this document, but only when specifically authorized.

intended Use:

This standard specifies EMI/IMI reduction techniques, protection measures, personnel safety grounding requirements and methods for installing shipboard cable ground systems.