11.04 What inspections and tests are required to assure ongoing reliability?

Fuel system inspections and tests can be summarized as follows:

• daily inspection of the fuel system for leaks and observation of the control and monitoring system for alarm conditions.
• Monthly or annual testing of secondary containment leak detection systems as required for state and local regulatory compliance
• Annual, or more frequent testing, in accordance with the original commissioning script.

It is recommended that the systems be designed to facility ongoing testing. These details include:

• pressure and vacuum gauges on piping system
• day tank return flow pumps to lower tank levels and test refill
• position indicators for actuated valves
• quick disconnect wiring connectors for valves and sensors

In some instances, an automatic commissioning function is designed into the fuel system controllers.