Safety Enhancements for PHWRs Based on Macroscopic Losses of the Fukushima Accident

Table 2

Systems to be diversified for electrical safety and security enhancement.

	Offsite power	Onsite emergency; AC power	Onsite DC power
Name of Systems	(i) Connection with neighboring power stations; (ii) Connection with plural substations; (iii) Transmission lines; (iv) Underground transmission cable	(i) Water-cooled EDGs; (ii) Air-cooled EDGs; (iii) Turbine generators; (iv) Mobile AC generators; (v) Higher and lower locations	(i) DC batteries; (ii) Mobile DC generators; (iii) Battery stocks; (iv) DC battery charged by wind power or solar power on site; (v) Higher and lower locations