Temperatures measured inside the Unit 1 Primary Containment Vessel at Fukushima Daiichi Nuclear Power Station
Here are the measurement results of temperatures inside the Unit 1 Primary Containment Vessel at Fukushima Daiichi Nuclear Power Station.
Monitoring points
![Monitoring points](/en/hd/decommission/data/plant_data/unit1/images/1f-1_pcv_L-e.jpg)
Temperature
![Temperature](https://www4.tepco.co.jp/en/nu/fukushima-np/f1-rt/images-e/f1-PCV-temp-1u-lg-e.png)
- ※Here are the measurement points for each temperature.
- ※For reference: The following is the “Limiting Conditions of Operations” designated in the implementation plan for temperatures
inside the Primary Containment Vessel:
・Temperature at the bottom of the Reactor Pressure Vessel: Within 80℃
Announcement
- Data may change or be missing due to equipment failure or regular inspections.
- Temperature may change due to change of water injection flow rate to the reactor.
- Instrument equipment is removed, installed or inspected for regular inspections at Unit 1 - 4.
During the work period, the indicated value will fluctuate or be absent, but the equipment will return to a measureable state at a defined time.