IEC TR 61366-2:1998 pdf download – Hydraulic turbines, storage pumpsand pump-turbines – Tendering Documents -Part 2: Guidelines for technical specifications for Francis turbines

IEC TR 61366-2:1998 pdf download – Hydraulic turbines, storage pumpsand pump-turbines – Tendering Documents -Part 2: Guidelines for technical specifications for Francis turbines.
6.8 Technical specifications for awcillary systems:
6 9 Technical specifications for instrumentation:
6 10 Spare parts:
6.11 Model acceptance tests:
612 Site installation and commissioning:
613 Field acceptance tests.
1 Scope
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 Francis turbines.
2 Reference documents
IEC 60041:1992. Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines
IEC 60 193:1965, International code 10, model acceptance tests of hydraulic turbines
IEC 60308:1970. International code for testing of speed governing systems for hydraulic turbines
IEC 60609:1978, Cavitation pitting evaluation in hydraulic turbines, storage pumps and pumpturbines
IEC 60994:1991, Guide for field measurement f 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 of IEC 61366-I) shall be consistent with what is presented here. In a similar manner, pay items in the tender form, TD section 1.2 (4.2) should be defined directly from TD subsection 6.1.1.
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. s*te 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:
3.2 LimIts of the contract
This subclause, by making reference to the Employer’s drawings and data, should describe in detail 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, location and responsibility for field connection to spiral case and penstock or valve on the 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 Iow-pres5ure side; orientation and location of the turbnegenerator shaft interface;
responsibility for supply and installation of flange coupling bolts, nuts and guards at generator/turbine coupling, including drilling jig:
— responsibility for supply and installation of bolts, nuts, gaskets at piping termination;
– termination of governor piping;
— termination of spiral case and draft tube dewatering piping:
termination of spiral air exhaust piping (if any); termination of pit drainage piping:
termination of bearing lubricating oil piping:
termination of piping (if required) to carry upper runner seal leakage to the draft tube:
termination of shaft seal piping (if any):
termination of piping for air admission system (if any) and for runner pressure balancing system (if any);
— termination of cooling water piping for bearings;
— turbine headcover mounted thrust bearing (if specified):
— termination points and junction boxes for wiring for power, control, indication, protection. and lighting:
— compressed air for service and other functions.
NOTE — Contraci limits will change If oltier mao tents ol equlprnanf (etich as ht,dro-lurbine conirol sVste.n. turbIne inlet valves. en.rators, •zcitaLion syalema, control m.t.rnig and relayinq systems, switchg.ar, and power transformers) are included emiti tti’e turbine equlpmemit in a common set of T.ndenn Documentg
3.3 Supply by Employer
This subclause should be complementary to 5.6 of IEC 61366-1 (TD section 2.6), and should list the items and services wttich will be the responsibility of the Employer. The following items should be considered.