SHIPALT 125D ELECTRICAL MODIFICATION JOB SPECIFICATION SUMMARY

This is a Job Specification document for electrical modification work on the SHIPALT 125D barge (YON-285), issued under ICN 89MVA15006. The work involves the installation of new electrical foundations and shore power cable supports, removal of existing electrical equipment, and installation of new electrical systems aboard the vessel. The specification references multiple standard items and installation documents (including MIL-STD-2003B for electric plant installation and MIL-STD-1310H for shipboard bonding and electromagnetic compatibility). Key requirements include accomplishing electrical foundation and cable support installations per referenced drawings, modifying electrical systems with chip and grid surface finishing, performing cable installations with penetrations and tightness testing (allowable leakage of none), bonding and grounding equipment, conducting operational tests of newly installed circuits, and cleaning and preservation of new and disturbed surfaces. Work is coordinated with related JONs (89MVA5003-A01, 89MVA5005-A01, 89MVA5007-A01) covering dry docking, undocking, deck preservation, and other concurrent modifications.

The document includes an extensive government-furnished materials list containing 202 line items of supplies including stuffing tubes, o-rings, packing assemblies, structural angles, plates, fasteners, cable protective equipment, circuit breakers, terminal blocks, cable grips, cables, fixtures, and welding electrodes. The POP (Period of Performance) begins 9/28/2026 with an anticipated completion date of 4/30/2027. The work is prepared by M. Yamashita, approved by S. Murakami, and concurred by A. Oka, with Y. Suenaga identified as the assistant planner. The contractor is responsible for waste disposal in accordance with Japanese Environmental Governing Standards (JEGS).