siemens - Public Service Commission

~
-
Spec
Page
#
'I Crystal River Unit 3
I
Nuclear Power Station
Replacement Turbine Generator
Table of Conformance - Technical
Comments
~
I1
_.
I1
-
I1
'1
5.2
Phvsical nrnnertics
Materials and equipment as determined by the Seller and subject to the approval of
Buyer.
Materials used in the manufacture of the stationary parts, and the rotor and blades
shall be consistent with current technology so as to provide the maximum amount of
service under the specified service conditions.
The use of asbestos materials or materials containing asbestos shall not be
permitted.
All nonmetallic materials in Supplier furnished piping systems shall be noted to the
Engineer for review and comment.
Steam path components shall not be made of copper or copper based alloys such
as bronze or brass.
Steam path components shall not contain lead.
Identify, as a part of this Bid, any parts with cobalt.
Turbine steam path structural materials shall have satisfactory proven experience
with the main steam chemistry requirements specified herein.
MOISTURE EROSION PROTECTION
Moisture erosion protection is required in all areas subject to erosion.
The location and type of moisture erosion protection shall be identified and
described.
Where cladding is used, the type and extent of such cladding and its purpose shall
be described.
Where shot peening is used, the extent of such shot peening and its purpose shall
be described.
Where hard surfacing, such as flame hardening, induction hardening or material
inserts are used, the extent of such hard surfacing and its purpose shall be
described.
This moisture Drotection could include but not be limited to:
- 1
1
5.3
The leading edge of the high moisture stages free standing rotating blade rows
The water removal provisions at every steam extraction lmtm
The horizontal and vertical joints and sealing surfaces of every stationary part
where steam leakage can occur.
Other areas subject to moisture erosion such as casing surfaces, extraction
nozzle connections and rotor sealing surfaces.
PIPING
All piping fumished shall be provided in ASME standard sizes in nominal English
units finch sizes) at all BuverlSeller terminal Doints
All weld end preparations. socket weld couplings, threaded connections
(mechanical and electrical), flange sizes and ratings. at Buyer/Supplier terminal
points shall comply with ASME standards in English units.
Doc #250846
4/10/2008 P Paragraph No 24