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Chapter 9 Electrical System Maintenance - Maintenance ...

Chapter 9 Electrical System Maintenance9-1 GeneralAll Electrical systems require regularly scheduled Maintenance in addition to non-scheduled Maintenance caused by unpredictable events such as storms, accidents, and equipment failure. The intent of periodic Maintenance is to keep the System operating correctly and effectively for the longest possible service lifetime. All Maintenance activities shall be documented in the Signal Maintenance Management System (SIMMS) for all equipment tracked in Maintenance activities are common to all systems, regardless of type.

LED luminaires: • Clean LED array/lens cover. • Check shields when present. • Replace luminaire every 15 years. HID luminaires: • Relamp every 4 years or replace with LED luminaire. • Clean reflector and refractor. Electrical System Maintenance Chapter 9 WSDOT Maintenance Manual M 51-01.11 Page 9-3 September 2020

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