IEC TR 61366-4:1998 pdf download – Hydraulic turbines, storage pumpsand pump-turbines – Tendering Documents -Part 4: Guidelines for technical specifications for Kaplan and propeller turbines

IEC TR 61366-4:1998 pdf download – Hydraulic turbines, storage pumpsand pump-turbines – Tendering Documents -Part 4: Guidelines for technical specifications for Kaplan and propeller turbines.
This technical report, referred to herein as the Guide, is intended to assist in the preparation of Tendering Documents and tendering proposals and in the evaluation of tenders for hydraulic machines. This part of IEC 61366 provides guidelines for Kaplan and propeller turbines.
2 Reference documents
IEC 60041:1992. Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines
IEC 60193:1965, InternatIonal code for model acceptance tests of hydraulic turbines
lEG 60308:1970. International code for testing of speed governing systems for hydraulic turbines
IEC 60545:1976, Guide for commissioning, opera hon and maintenance of hydraulic turbines
IEC 60609:1978, Cavitation pitting evaluation in hydraulic turbines, storage pumps and pump- turbines
IEC 60994:1991, Guide for held measurement of vibrations and pulsations in hydraulic machines (turbines, storage pumps and pump-turbines)
IEC 61362,— Guide to specification of hydro-turbine control systems ‘I
ISO 3740:1980, Acoustics — Determination of sound power levels of noise sources — Guidelines
for the use of basic standards and for the preparation of noise test codes
3 TechnIcal requIrements
3.1 Scope of work
This subclause should describe the scope of work and the responsibilities which are to be conferred upon the Contractor. The general statement of scope of work presented In TD 2) section 2.1 (5.1) shall be consistent with what is presented here. In a similar manner, pay Items In the tender form, TD subsection 1.2 (4.2), should be defined directly from TD subsection 6.11.
The scope of work should begin with a general statement which outlines the various elements of the work Including (where applicable) the design, model testing, supply of materials and labour, fabrication, machining, quality assurance, quality control, shop assembly. shop testing,spare parts, transportation to site. site installation, commissioning, acceptance testing. warranty and other services specified or required for the items of work. The general statement should be followed by a specific and detailed list of the major items which the Employer wishes to have as separate payment items in the tender form, for example:
Item Description
1 Six (6) vertical shalt Kaplan hydraulic turbines each with specified power of not less than 45 000 kW under a specified specific hydraulic energy of 294 Jikg (specified head o130 m)
2 Turbine model testing
3 Tools, slings and handling devces required for maintenance of the turbines
4 Transportation and delivery to site
5 Site installation, commissioning and acceptance testing of the turbines
6 Preparation and submission of operation and maintenance manual and training of the Employer’s operaling and maintenance staff in the optimum use of these manuals, and
7 Spare paris required for operation and maintenance.
3.2 LimIts of the contract
This subciause, making reference to the Employer’s drawings and data, should describe the limits of the contract considering the following:
— details of the design and supply limits of the high and low•pressure sides of the machine:
details and location of gate(s) or valve on high-pressure side and responsibility for field connection of spiral case to penstock or valve (if any) on high-pressure side;
– details and location of the downstream termination of the draft tube liner:
— details and location of gate(s) or valve(s) on low-pressure side:
— orientation and location of turbineigenerator shalt flange interface:
— responsibility for supply and installation of flange coupling bolts, nuts and guards at generatorturbine coupling, including drilling jig:
— responsibility for supply and installation of bolts, nuts, gaskets at piping termination:
— termination of governor piping;
— termination of (semi.) spiral case and draft tube clewatering piping;
— termination of spiral case air exhaust piping (if any);
— termination of pit drainage piping:
— termination of bearing lubricating oil piping:
— termination of shall seal piping (if any):
— termination of cooling water piping for bearings;
— turbine headcover mounted thrust bearing (if desired);
— termination points and junction boxes for power, control. indication, protection, and lighting.