scope:

Products and Applications Included

This recommended practice describes installation procedures for shielded and non-shielded soliddielectric medium-voltage cables rated from 600 Volts to 69,000 Volts AC and installed in conduits, ducts, or direct-buried. This publication applies to single- and multi-conductor cables used for distributing power for commercial, institutional, and industrial loads in nonhazardous locations both indoors and outdoors.

It also covers periodic routine maintenance and troubleshooting procedures for medium-voltage cable, and special procedures used after adverse operating conditions such as a short-circuit or ground-fault.

Products and Applications Excluded

This publication does not apply to the following:

Paper Insulated Lead Cable (PILC).

Fluid- or gas-filled cable.

Overhead cable.

Messenger supported cable.

Exposed cable.

Cable installed in cable trays.

Cable installed in hazardous locations.

All information in this publication is intended to conform to the National Electrical Code® (ANSI/NFPA standard 70) and National Electrical Safety Code (ANSI/IEEE standard C2). Installers should always follow the NEC, NESC, applicable state and local codes, and manufacturer's instructions when installing medium voltage cable.

Only qualified persons familiar with installation of medium-voltage cable should perform the work described in this publication.

Other National Electrical Installation Standards provide additional guidance for installing particular types of electrical products and systems. A complete list of NEIS is provided in Annex B.