12 May 2003
Including change 1, 19 January 2007
where adequately protected from physical damage and the elements. Provide stainless
steel or fiberglass hangers and bolts. Coordinate with the requirements in paragraph 2-
Cables For Shore-to-Ship Service. Shore-to-ship cables are normally
provided by the Activity. For 480 volts, three-phase, three-wire service, cables should
be ungrounded, standardized lengths of single cable with three conductors, Type
THOF-500, conforming to military spec MIL-C-915/6, Cable Power Electrical, 600 Volts,
For Outboard Use Only, and should be used for loads not exceeding 400 amps. For
4,160 volts, three-phase service to nuclear aircraft carriers, cables should be
SHD350GC 8 kV, non-shielded insulated, PVC-jacketed cable, in accordance with
Insulated Cable Engineers Association (ICEA) S-66-524, Cross-Linked-Thermosetting
Polyethylene-Insulated Wire and Cable for the Transmission and Distribution of
Ships' Shore Power Requirements. APPENDIX C provides a listing of
shore electrical loads of ships while homeported or undergoing alteration and repair.
Substation and feeder sizing on piers and wharves must be based upon the electrical
loads given in the "Design Load" for the largest ship (or largest number of ships) of all
classes which could be berthed at the pier. The minimum number of receptacles
provided in a secondary outlet assembly should match the number of receptacles in the
ship's respective receptacle stations. Nested ships must also be considered in the
electrical outlet assembly design where indicated by the facility berthing plan or where
conceivable at a future date.
Alternating Current Power. Hotel service loads include the ship's
electronics, weapons systems, cargo booms, galley equipment, space heating, and
miscellaneous lighting and power loads. These loads are supplied with either 480 volts
(nominal) or 4160 volts (nominal) ungrounded power. The 480 volts system should
supply approximately 480 volts at no load and 450 volts (plus or minus 5 percent) under
loaded conditions and at the ship's load center. For 4160 volts requirements, supply
approximately 4160 volts at no load and 4100 volts (plus or minus 5 percent) under
loaded conditions and at the ship's load center. System design must be coordinated
with the planned nesting requirements of the pier to maintain the voltage within the
allowable tolerances at outboard ships.
Direct Current (dc) Power. When required, dc power should be provided
for certain ships in accordance with instructions provided by the Activity. Portable
rectifier units will be provided by the Activity. Provide sufficient ac power and
receptacles to serve such equipment. Coordinate connection requirements with the
400-Hz Power. 400-Hz power for ship service may be supplied from the
480 volts system utilizing portable generating equipment furnished either by the Activity
or by the ship. Provide 60 Hz power and receptacles to serve such equipment.
Coordinate connection requirements with the Activity.