Tokyo Electric Power Co. said Saturday it has built a framework for a giant cover that will be placed over reactor 1 at the Fukushima No. 1 nuclear plant, preventing radioactive materials from spreading and shielding the building from rainwater.It's a wrap: The frame for a giant cover that will enclose reactor 1 at the Fukushima No. 1 nuclear plant is seen Friday. KYODO PHOTOTepco said it plans to complete the cover, a tentlike structure made of steel frames and airtight polyester sheets, by the end of October.When completed, the cover will be between 42 and 47 meters long and about 54 meters high.The building housing the No. 1 reactor and those housing reactors 3 and 4 were badly damaged by explosions after the plant was struck by the massive earthquake and tsunami on March 11.Once it's installed, Tepco said it will consider making similar covers for reactors 3 and 4.The government is considering allocating an additional ¥3 trillion to help Tokyo Electric Power Co. meet the massive compensation claims it faces over the disaster at the Fukushima No. 1 nuclear plant.The move would bring the total of such financial aid to ¥5 trillion. The Finance Ministry, however, is continuing to receive a number of requests from ministries and agencies over the third extra budget for fiscal 2011 to pay for reconstruction after the March 11 quake and tsunami.These requests include a call for spending on incentive programs to prevent firms from shifting their production abroad due to the sharp rise of the yen.The envisaged supplementary budget, which could total around ¥10 trillion, would finance disaster reconstruction projects, as well as countermeasures against the strong yen's impact on the economy.As requested by the Ministry of Economy, Trade and Industry, the Finance Ministry is likely to approve the fresh allocation of funding for Tepco.