Isolate fire mains to allow installation of new electrical meter building.<br />
Isolate fire service valve set and safely depressurise the line.<br />
Drain residual pressure and confirm system is fully isolated.<br />
Upon completion of electrical works, reopen fire service valves and restore full flow.<br />
Flush air from the system to ensure stable pressure and correct operation.<br />
Pressure test the fire main to confirm integrity and reinstatement of service.<br />
Leave site clean and tidy.