12.1.1.7-5 Shared Equipment

When control of some plant equipment is shared by the control rooms of multiple-unit nuclear power plants, care must be taken to ensure that status and availability data for this equipment are available in each control room, and that equipment operation from the control room for one unit will not affect other unit operations.

Additional Information:
Control of plant equipment from one control room should not affect the ability of operators of other control rooms to maintain control of their respective units. The status of plant equipment under the control of one control room should be displayed in all control rooms capable of controlling that equipment. If control of plant equipment from one control room renders that equipment unavailable to other control rooms, availability status indications should be displayed in all control rooms. A single, centrally located control panel/console may be used for dual-unit control rooms within the same isolation boundary when this design does not conflict with the panel layout and control-display integration guidelines of Section 11.2. Administrative procedures should be in place that assign responsibility for allocation of use of controls of shared plant equipment to a single control room.