scope:

The purpose of this guide is to provide application information to users of carrier equipment as applied on power transmission lines. Since the major applications of the power-line carrier (PLC) is for protective relaying, special consideration for these applications has been included. Information related to the expanding usage of carriers on distribution lines below 69 kV is not specifically covered. Detailed equipment design information is avoided as this is primarily the concern of equipment manufacturers.

Material on PLC channel characteristics is presented along with discussions on intrabundle conductor systems and insulated shield-wire systems. Procedures are provided for the calculation of channel performance. Data for the calculations are drawn from various sections of the guide. The coupling components considered are line traps, coupling capacitors, line tuners, coaxial cables, hybrids, and filters. Frequency selection practices and future trends are discussed.

An effort has been made to coordinate this guide with the CIGRE Guide [B49]¹ and IEC 60353,² IEC 60481, IEC 60495, and IEC 60663.

¹The numbers in brackets correspond to those of the bibliography in Annex B.

²Information on references can be found in Clause 2.