This section is dedicated to laying out the owner’s requirements for com­munications among project participants. The main topics to be addressed are requirements for written communications, correspondence filing and coding system, correspondence distribution criteria, record keeping, quality assurance requirements for the transmission of quality-related design data, and record of correspondence pending answer.

19.4 Technical data sheets

The technical data sheets (DS) document consists of a set of data sheets summarising the following information in a table:

• The main technical requirements specified in the TR, NF and PI documents

• The main technical data for plant structures, systems and components.

The table format usually presents the information in the following manner: in the left-hand column, the owner briefly sums up the key technical require­ments for which a summary answer is requested from the bidder (to be included in the right-side column, left blank). This table is to be completed by the bidder directly and included in his bid.

It should be noted that data sheets are only a summary of technical features and data presented in an organised and systematic manner, for the purpose of obtaining, in addition to the bids: (a) answers from all the bidders organised in the same fashion; (b) a quick understanding of the compliance of each bidder with key requirements; and (c) a consistent tabu­lation of plant data to facilitate bid evaluation. Thus it is understood that more detailed information regarding plant design and features is to be found in the technical descriptions, drawings and data included by the bidder in other parts of the bid.

It is advisable for the technical data sheets to be organised into three sets, as follows:

1. Data sheets covering the main data at the overall plant level, to provide a quick overview of plant design parameters and features.

2. Data sheets addressing compliance with the main top-level design objectives as they are specified in the BIS and organised by project discipline (e. g. licensing and regulations; nuclear safety; civil-structural; NSSS; systems and equipment; turbine-generator and steam cycle; rad — waste systems; electrical systems; I&C; BOP; project implementation).

3. Data sheets listing the main technical data (i. e. performance, design conditions, operating conditions, materials, quality classification, codes and standards, etc.) of main plant structures, systems and components. This third set of technical data sheets can be organised as follows: NSSS systems and components (e. g. reactor pressure vessel, steam generators, main coolant pumps); emergency core cooling systems (ECCS); reactor auxiliary systems, containment systems, nuclear fuel supply and han­dling; radwaste systems; plant auxiliary systems; electrical systems; I&C systems; turbine-generator and auxiliaries; steam-cycle systems (main steam, feedwater, condensate, etc.); and cooling water system.