FAA-C-1391D, FEDERAL AVIATION ADMINISTRATION SPECIFICATION: INSTALLATION, TERMINATION, SPLICING, AND TRANSIENT/SURGE PROTECTION OF UNDERGROUND ELECTRICAL DISTRIBUTION SYSTEM POWER CABLES (SEP-2014)
FAA-C-1391D, FEDERAL AVIATION ADMINISTRATION SPECIFICATION: INSTALLATION, TERMINATION, SPLICING, AND
TRANSIENT/SURGE PROTECTION OF UNDERGROUND
ELECTRICAL DISTRIBUTION SYSTEM POWER CABLES (SEP-2014)., This specification provides requirements for the installation of FAA-owned and maintained
underground electrical line distribution (ELD) systems in support of FAA facilities. The ELD
systems include power cable and associated components on the exterior, commercial power
supply side of the circuit at the airfield or remote site through to the service entrance power
panels of FAA facilities.
2. This specification applies only to FAA medium-voltage (MV) and low-voltage (LV)
underground power cables, and to a limited extent to overhead lines that may form a part of an
FAA-owned circuit. It does not apply to control, telecommunication, or facility service
entrance (load side) wiring. For standards pertaining to these non-power cable and electrical
systems, consult the appropriate office of primary responsibility for applicable standards.
3. Power for airfield lighting cables has a separate set of standards and procedures. Refer to the
appropriate FAA Advisory Circular (AC) 150/5340 and associated governing standards.
4. This is an update to an existing specification. It assimilates recent utility industry knowledge
concerning ELD systems, with the aim of providing safer, more reliable FAA underground
MV and LV ELD systems.