Maintenance

Periodical Shut-down Inspection

Inspection Type	Interval (Hr)	Reference Operation *1	Downtime
Combustion Inspection	16,000 (Gas fuel) 12,000 (Oil fuel)	2 years	7 days
Hot Gas Path Inspection	32,000 (Gas fuel) 24,000 (Oil fuel)	4 years	16 days
Major Inspection	64,000 (Gas fuel) 48,000 (Oil fuel)	8 years	25 days

• *Interval & downtime shall be subject to operating cycle and conditions, etc.
• *Cool downtime (1 days) and start-up (1~2 days) are not included in downtime.

*1

8000 hours/year continuous operation Case.

HITACHI Turbine Global Service