enhanced safety measures at hamaoka nuclear … works planned after the fukushima daiichi nuclear...
TRANSCRIPT
Ⓑ
Ⓐ
Ⓒ Ⓓ
Ⓔ
ⒼⒾⒿⓂ
Ⓚ
Ⓛ
Ⓗ
Ⓕ
Enhanced Safety Measures at Hamaoka Nuclear Power Station Unit 4(conceptual image)
July 29,2016 Chubu Electric Power Co.,Inc
Major works planned after the Fukushima Daiichi Nuclear Power Station accident as measures to enhance the safety of Unit 4 are expected to be completed by around September 2016. The efforts will accordingly bolster key functions concerning steps for higher safety (e.g. electric power supply, water injection, heat sink). Meanwhile, in light of field condition- or review-based work detail revisions and design changes, respectively, some of the works are to be continued from September and onwards. New knowledge and developments from conformability reviews might result in the need to rearrange or add works. We will accordingly announce the timing in which enhanced safety measure works will complete, after the review practically comes to an end and we gain an outlook for the works.
Pre-
service inspection
Review of
application concerning work plan approval
Review of compliance with new regulatory requirements
○Extending Emergency Response Center
○Pipe support work (Partial)
○Countermeasures for internal fire ○Boosting battery capacity
○Locating light oil tanks underground
○Pipe support work
ⒻGas turbine generator
Ensuring cooling functions
ⒿMobile water intake pumper
ⓀEmergency seawater intake system
Seismic resistance:
Geological features around the station site, i.e. preconditions for standard seismic motion and design basis tsunami reviews, have been reviewed in advance in terms of earthquakes and tsunamis.
Equipment: Reviews concerning design basis and severe accident measures are currently underway, together
with boiling water reactor operators.
ⒸTsunami protection wall
ⒺLarge equipment access way (Tsunami protection door)
Safety Enh
ancem
ent M
easures
(Note) Works might require rearrangements and additions based on new knowledge and developments on the review.
Works conducted in step with pre-service inspections
Review
of
com
plian
ce
Major works completing around September 2016
2016年9月頃までに終了する主な工事
○Extending Emergency
Response Center
Works reviewed in light of field conditions or continued on account of review details
Works continuing after September 2016
ⒹOverflow prevention wall
Earthquake countermeasure work
Ⓐ Water intake pond foundation
improvement
ⒷOn-site slope reinforcement
Tsunami countermeasure work
ⒸTsunami protection wall/Cement-mixed
soil embankment for east and west site areas
ⒹOverflow prevention wall
ⒺLarge equipment hatch
(Tsunami protection door)
Power supply measure work
ⒻGas turbine generator
ⒼPower truck
Water injection measure work
ⒽEmergency fresh water storage tank
ⒾMobile water injection pumper
ⒿMobile water intake pumper
Heat sink measure work
ⓀEmergency seawater intake system
ⓁFilter vent equipment
ⓂAlternative heat exchanger vehicle
Other countermeasure works
・Mobile equipment storage area/Access
route
・Measures for protection against missiles
ⒶWater intake pond foundation improvement
(Gas turbine generator
building standing on the high ground)
(Gas turbine generator)
Withstanding large-scale earthquakes
Preventing inflow of tsunami
Enh
anced
Safety Measu
res