UNE-EN 60965:2016

This International Standard establishes requirements for the Supplementary Control Room

provided to enable the operating staff of nuclear power plants to shut down the reactor, where

previously operating, and maintain the plant in a safe shut-down state in the event that control

of the safety functions can no longer be exercised from the Main Control Room, due to

unavailability of the Main Control Room or its facilities. The design has to ensure that the

Supplementary Control Room is protected against the hazards, including any localised

extreme hazards, leading to the unavailability of the Main Control Room.

The standard also establishes requirements for the selection of functions, the design and

organisation of the human-machine interface, and the procedures which shall be used

systematically to verify and validate the functional design of the supplementary control room.

It is assumed that supplementary control room provided for shutdown operations from outside

the main control room would be unattended during normal plant conditions other than for

periodic testing. The requirements reflect the application of human engineering principles as

they apply to the human-machine interface during such periodic testing and during abnormal

plant conditions.

This standard does not cover special emergency response facilities (e.g. a technical support

centre) or facilities provided for radioactive waste handling. Detailed equipment design is also

outside the scope of the standard.

This standard follows the principles of IAEA Specific Safety Requirements SSR-2/1 and IAEA

Safety Guide NS-G-1.3.

The purpose of this standard is to provide functional design requirements to be used in the

design of the supplementary control room of a nuclear power plant to meet safety

requirements.

This standard is intended for application to a supplementary control room whose conceptual

design is initiated after the publication of this standard. If it is desired to apply it to existing

plants or designs, special care must be taken to ensure a consistent design basis. This

relates, for example, to factors such as the consistency between the supplementary control

room and the main control room, the ergonomic approach, the automation level and the

information technology, and the extent of modifications to be implemented in I&C systems.