CS: What is the fragility of EDG 1-4? Is the 5th DG sufficient for the emergency supply of two units? 37 1. The fragility of EDG 1-4 is > 2. The 5th EDG can supply power to the safety 4.16KV essential bus of both units simultaneously with load shedding. MS: The success path 1 (p. 41) speaks of using a gas turbine to drive AFWP. According to the table (p. 42) the fragility of the gas turbine is . Why is not the limiting values for success path 1? 42 turbine…→” is a typo error. It should be turbine…→”. “→…gas “→…steam LM: The sentence is not understood: "HCLPF = was selected conservatively as the screening value to be used in the seismic cliff edge effects event tree." 43 As suggested in EPRI-1002988, a HCLPF value of can be used as a screen value to screen out high seismic capacity SSCs which will not have significant impact to the risk. For LMNPP, we use the HCLPF value of to screen out high seismic capacity SSCs when developing cliff edge effects event tree.
CS: What is the fragility of EDG 1-4? Is the 5th DG sufficient for the emergency supply of two units? 1. The fragility of EDG 1-4 is > 2. The 5th EDG can supply power to the safety 4.16KV essential bus of both units simultaneously with load shedding. 37 MS: The success path 1 (p. 41) speaks of using a gas turbine to drive AFWP. According to the table (p. 42) the fragility of the gas turbine is . Why is not the limiting values for success path 1? “→…gas turbine…→” is a typo error. It should be “→…steam turbine…→”. 42 LM: The sentence is not understood: "HCLPF = was selected conservatively as the screening value to be used in the seismic cliff edge effects event tree." As suggested in EPRI-1002988, a HCLPF value of can be used as a screen value to screen out high seismic capacity SSCs which will not have significant impact to the risk. For LMNPP, we use the HCLPF value of to screen out high seismic capacity SSCs when developing cliff edge effects event tree. 43