RD POST.pdf

This document is an Overhaul Description for a Circuit Breaker (NSN 5925-01-120-0886, Part Number AKR-6-30) used on WTGB 140, issued by the U.S. Coast Guard. The detailed specification outlines comprehensive requirements for the complete inspection, overhaul, and testing of circuit breakers, including stringent preservation, packaging, and marking protocols. Key technical requirements include thorough disassembly, cleaning, visual inspection of components like arc chutes and electrical switches, and performing multiple electrical tests such as insulation resistance, dielectric testing, and operational verification per ANSI/NEMA AB 4 standards.

The document specifies that overhauled circuit breakers must be individually packaged in wooden boxes, sealed in vacuum-sealed MIL-PRK-141 foil bags with desiccant, and marked with specific identification details. The contractor must provide a detailed test report, maintain calibrated test equipment, and guarantee the overhauled circuit breaker for 120 days after installation with a two-year warranty period. Quality assurance requirements mandate a documented Quality Control Program conforming to ANSI/ASQ 9001-2008, with all tests to be witnessed by a Coast Guard Quality Assurance Representative and comprehensive documentation of test results and procedures.