scope:

This Recommended Practice addresses system and equipment design techniques and equipment selection that can improve electrical safety. The techniques in this Practice are intended to supplement the minimum requirements of installation codes and equipment standards. It does not include communications, programming, or life safety systems such as fire alarm and security.

Purpose

This Recommended Practice provides a "tool kit" of techniques to enable the electrical system designer to specify certain design techniques, equipment features, equipment configurations, apply protection schemes, and make informed electrical system installation choices.