BS IEC 61366-2-1998 PDF

Full title and description

STB BS IEC 61366-2:1998 — Hydraulic turbines, storage pumps and pump‑turbines. Tendering documents — Part 2: Guidelines for technical specifications for Francis turbines. This publication is the British adoption of IEC TR 61366‑2:1998 and provides a template and recommendations for preparing technical specification sections of tender documents related to Francis type hydraulic turbines.

Abstract

This technical report offers guidance to owners, consultants, manufacturers and procuring authorities on the content, structure and essential technical requirements to include in tendering documents and in the evaluation of tenders for Francis turbines. It focuses on ensuring clarity and consistency of technical specifications so that tenders can be fairly compared and evaluated.

General information

• Status: Published (IEC Technical Report adopted as BS IEC).
• Publication date: IEC TR publication date 11 March 1998; British adoption (BS IEC) published 15 June 1998.
• Publisher: International Electrotechnical Commission (IEC) — Technical Report; British Standards Institution (BSI) for the BS adoption.
• ICS / categories: 27.140 — Hydraulic energy engineering.
• Edition / version: Edition 1.0 (1998).
• Number of pages: IEC TR version indicated at about 33 pages; the BS IEC publication is listed at about 28 pages (format and pagination vary by publisher edition).

Scope

This part of IEC 61366 provides guidelines to assist in the preparation of tendering documents, tender proposals and the evaluation of tenders specifically for Francis turbines. It addresses the technical specification content — performance requirements, design and manufacturing criteria, testing and acceptance, documentation and information to be requested from tenderers — but does not replace project‑specific contractual conditions.

Key topics and requirements

• Recommended structure and contents for the technical specification section of tender documents (technical data sheets, drawings, schedules).
• Performance and guaranteed values (efficiency, head, capacity, runaway and operating ranges).
• Design, materials and manufacturing requirements relevant to Francis turbines.
• Inspection, factory and on‑site testing, and acceptance test procedures.
• Documentation to be supplied by the manufacturer (drawings, operating and maintenance manuals, spare parts lists).
• Requirements for site conditions, interfaces and installation responsibilities.
• Clauses for guarantees, remedies, performance guarantees and evaluation of alternative offers.

Typical use and users

Used by hydroelectric plant owners, project engineers, consulting engineers, procurement teams, contract writers, and turbine manufacturers when preparing or evaluating tender documents and technical specifications for Francis turbine supply, installation and commissioning projects.

Related standards

This document is Part 2 of the IEC 61366 series of technical reports on Tendering Documents for hydraulic turbines, storage pumps and pump‑turbines. Related parts include Part 1 (General and annexes) and machine‑specific parts for Pelton, Kaplan/propeller, tubular machines, pump‑turbines and storage pumps (the series comprises multiple parts covering general arrangements and specific turbine types). Users commonly consult IEC 61366‑1 alongside Part 2.

Keywords

Francis turbine, hydraulic turbines, tendering documents, technical specification, procurement, IEC TR 61366, BS IEC, hydraulic energy engineering, acceptance tests, performance guarantees.

FAQ

Q: What is this standard?

A: It is IEC TR 61366‑2:1998 adopted as BS IEC 61366‑2:1998 — a technical report giving guidelines for technical specifications for Francis turbines within tender documents.

Q: What does it cover?

A: It covers recommended content and structure of technical specifications in tendering documents for Francis turbines, including performance parameters, design and manufacturing requirements, testing and acceptance, documentation and contractual considerations.

Q: Who typically uses it?

A: Owners and operators of hydro plants, consulting and design engineers, procurement and contracts teams, and turbine manufacturers use it when preparing, issuing or evaluating tenders for Francis turbine equipment and associated works.

Q: Is it current or superseded?

A: The publication date is 1998 (Edition 1.0). The IEC webstore lists the technical report with a stability indication extending to 2026; users should check with IEC and national bodies (BSI) for any updates, amendments or newer replacements before relying on it for a current procurement.

Q: Is it part of a series?

A: Yes — it is Part 2 of the IEC 61366 series on Tendering Documents for hydraulic turbines, with Part 1 providing general guidance and other parts addressing Pelton, Kaplan/propeller, pump‑turbines and storage pumps.

Q: What are the key keywords?

A: Francis turbine, tendering documents, technical specification, hydraulic turbines, IEC 61366, BS IEC, procurement, acceptance testing.