OREANDA-NEWS. On Monday, December 21, 2015, Electric Power Development Co., Ltd. (hereinafter, “J-POWER”) suspended operation of the No. 2 unit at the Matsuura Thermal Power Station (location: Matsuura City, Nagasaki Prefecture, output: 1,000MW) due to a suspected steam leak inside the steam boiler, as J-POWER announced on the same day.
Based on the internal inspection of the steam boiler which confirmed one pipe from which steam leaked and another damaged neighboring pipe in the 4th stage superheater*, J-POWER replaced those damaged pipes. After additional investigation of pipes in nearby or similar places and replacement of ten pipes as measures for preventing similar accidents, J-POWER resumed operation of the unit at 7:03 am on Thursday, January 7.
J-POWER intends to continue to take all possible measures for maintenance and management of the facilities and the stable operation of the power stations.