Attachment B.pdf

Attachment B is a comprehensive preventative maintenance requirements document for a Transfer Switch, detailing an annual maintenance schedule to be performed in October. The document outlines 21 specific maintenance tasks for a transfer switch system, including comprehensive checks of electrical components such as arc insulators, arcing contacts, main current carrying contacts, auxiliary contacts, and various operational inspections. Each maintenance task is scheduled to be performed annually in October and covers critical aspects like checking for evidence of arcing or damage, re-lubricating switch operators and pivot points, cleaning dust and dirt from enclosures, inspecting controllers and relays, and verifying voltage drops and heat levels under normal and emergency load conditions.

The maintenance protocol includes technical assessments such as checking loose terminals, verifying controller and relay operations, examining remote start contacts, and monitoring in-phase conditions during transfer. The document also mandates providing documentation to OVH (likely an oversight or operations management entity) with written service procedure reports, findings, repairs, and recommended corrective actions. The systematic approach suggests this is part of a structured preventative maintenance program designed to ensure reliable performance and longevity of critical electrical switching infrastructure, with a focus on detailed annual inspections and proactive maintenance to prevent potential system failures.