ML20214G963
| ML20214G963 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 04/12/1977 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20214G966 | List:
|
| References | |
| N2M-865, NUDOCS 8605290094 | |
| Download: ML20214G963 (14) | |
Text
Attachment 2 j .
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( - e TENNESSEE VALLEY AUTHORITY f DIVISION OF ENGINEERING DESIGN Y SEQUOYAH NUCLEAR PLANT CONSTRUCTION SPECIFICATION ,
No. N2M-865 FOR FIELD FABRICATION, ASSEMBLY EXAMINATION, AND TESTS FOR PIPE AND DUCT SYSTEMS C ,.l I
REVISION
- R1 R2 R3 R4 R5 Datu July 18, 1974 4/7/76 10/5/76 4/12/77 SPON53 RED E. A. Merrick h4 f)b f4 SUBMITTED M. N. Bressler M(
CONCURRED RECOMMENDED NT/ A (Sponsor Branch Chief) D. R. Patterson Q '
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j SPEC. CONTR O L P. L. Duncan y A
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APPROVED (Dir.of Construction)
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APPROVED (Dir.of Eng. Dsgn.) D. 3. Weaver ~M g q/ g'g4)
, .,a Tape No. 62-03
- Signatures appearing on original signed cover sheet.
TVA 10$74A (DED 2-75)
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- REVISION LOG ,
FIELD FABRICATION, ASSEMBLY EXAMINATION, 4
Title:
AND TESTS FOR PIPE AND DUCT SYSTEMS, ' N2M-865
' RevisioA Defe u.. DESCRIPTION OF REVISION 4,,,,,,,
O See Preface. 7/18/74 1 New cover sheet, complete rewrite (see Preface). 4/7/76 2 Revised to add Addendum II as requested by Sequoyah Nuclear- 10/5/76 Plant personnel by reply memorandum MC-466
- 3 Revised to add Addendum III. 4/12/77 9
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[. FIELD FABRICATION, ASSEMBLY EXAMINATION, N2M-865
- - ' . _ , . __ AND TESTS FOR PIPE AND DUCT SYSTEMS e
TABLE OF CONTEN_TS Page No.
1.0 PURPOSE AND SCOPE . . . . ... . . . . . . . . . . . . . .. 1 2.0 ABBREVIATIONS . . . . . . ... .. . . . . . . . . . . ... 1 3.0 DEFINITIONS . . . . . . . . .. . . . . . . . . . . . . ... 1
4.0 REFERENCES
. . . . . . . . .. . . . . . . . . . . . . . ... 2 S.0 REQUIREMENIS FOR FIELD INSTALLATION OF PIPE '
AND DUCT SYSTEMS ... . . . .. . . . . . . . . . .. . . . ... 3 6.0 CLASSIFICATION OF SYSTEMS .. . . . . . . . . . . . . . ... 5 ADDENDUM I . . . . .' . . . . .... ... . . . . . . . . . ... 6 .
ADDENDUM II . . . . . . . . . . .. .... . . . . . . . . . ... 7
. ADDENDUM III. . . . . . . . . . .. . ... . . . . . . . . . . ... 9 (s. .
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FIELD FABRICATION, ASSEMBLY EXAMINATION, 4 - -
AND TESTS FOR PIPE AND DUCT SYSTEMS N2M-865 PREFACE N2M-865. Rev. O This specification was formerly a portion of appendix E to the Sequoyah Nuclear Plant Quality Assurance Manual. This Revision 1 is being issued as Sequoyah Project Construction Specification N2M-865, Rev. O, retyped with minor non-technical changes and rearrangement of content. The extensive rewrite of code requirements which were incorporated in Rev. O of appendix E have been dropped, i - as well as references to codes covering procurement of equipment'such as valves.
< All references to. design have been extracted and will be covered elsewhere.
I N2M-865, Rev. 1 This Rev. 1 to N2M-865 is being issued for the purpose of updating references to iceflect current installation requirements at Sequoyah Nuclear Plant and to add definitions pertinent to site activities.
This specification has been reviewed for adequacy by responsible personnel in '
the Division of Engineering Design - Thermal Powar Engineering and Design Projects and Division of Construction - Sequoyah Nuclear Plant; all comments have been resolved. Separate specifications will be issued for special con-(p* I siderations as required. , .
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.af i TvA 10535 (DED 5 74) 11 i- _
Pega 5 of 14
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FIELD FABRICATION, ASSEMBLY EXAMINATION, AND TESTS FOR PIPE AND DUCT SYSTEMS N2M-865 1
1.0 PURPOSE AND SCOPE The purpose of this specification is to define the requirements for field fabrication, assembly, examination, and testing of pipe and duct systems at Sequoyah Neclear Plant. Material or procurement requirements for pipe and duct systems are not covered by this specification.
Where ccnflicts exist, they shall be brought to the attention of the Nuclear Standards and Materials Section within DED-MEB.
2.0 ABBREVIATIONS ,
2.1 OEDC - Office of Engineering Design and Construction 2.2 DED - Division of Engineering Design 2.3 DEC - Division of Construction 2.4 MEB - Mechanical Engineering Branch (in DED) 3.0 DEFINITIONS h;', /$
. 3.1 System - Consists of pipe, duc't, fittings, valves, controls, fans, pumps, pressure vessels, tanks, accessories, supports, and restraints required to perform a specific function associated with the production and ,
control of thermal energy from nuclear fuel. ,
- 3.2 Installation - Consists of those actions required to place and attach piping, duct, and components to their support structures and to join >
piping, duct, components, and appurtenances of a nuclear power system in the field by welding or other mechanical means.
3.3 Component - A piece of equipment such as a vessel, tank, piping system, '
pump, fan air handling unit (AHU), chiller, or valve which will be combined with other components to form an assembly. --
3.4 Assembly - A combination of subassemblies or components, or both, fitted together to form a unit.
I 3.5 Material - Items which are manufactured to a material specification.
3.6 Part - An item which has work performed on it and which is attached to
- and becomes a part of a component before completion and stamping of the-l component.
3.7 Piping Subassemblies - Sections of a piping system consisting of fittings and pipes or tubes which are~ fabricated as subassemblies in a
'; shop or in the field before they are installed in a nuclear power system.
A piping subassembly consists of a minimum of two pieces of piping joined v by a circumferential weld or mechanical joint.
TVA 10535 (DED-5 74) ,
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FIELD FABRICATION, ASSEMBLY EXAMINATION, AND TESTS FOR PIPE AND DUCT SYSTEMS N2M-865
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- 3.8 Owner - As used in this specification, refers to the organization l resnonsible for the operation, maintenance, safety, and power generation of the nuclear power plant. For the purposes of work in accordance with this specification, the Owner's responsibilities have been delegated to TVA-0EDC.
3.9 Manufacturer - organization or combination of organizations which construct (see 3.10) any class of component, part, or appurtenance to meet a design specification.
- '3.10 Installer - As used in this specification, refers to an organization j which installs and joins components, piping subassemblies, and appur-i tenances in the field. For purposes of work in accordance with this j specification, TVA-DEC is the Installer.
{ 3.11 Construction - As used in this specification, is an all-inclusive term
' comprising materials, design, fabrication, examination, testing, inspection, and cutification required in the manufacture and installa-
- tion of components, parts and appurtenances.
1 3.12 Component boundary - As used in this specification, the boundaries l of a component to which piping is attached shall be the boundary not -
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closer to the main shell'of a vessel, pump, or valve than:
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b'3.12.1 The first circumferential joint in welded connections (i.e. the weld c
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Prep)'; 'the connecting weld shall be considered part of the piping.
t 3.12.2 The face of the first flange in bolted connections; the bolts shall i be considered part of the piping.
3.12.3 The first joint in threaded connections.
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4.0 REFERENCES
{ 4.1 ASME Boiler and Pressure Vessel Code
- 4.2 ANSI Standards
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( 4.2.1 ANSI B31.1 - Power Piping '
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4.2.2 ANSI B31.5 - Refrigeration Piping 4.2.3 ANSI B31.7 - Nuclear Power Piping i
3 4.3 SMACNA High Velocity Duct Construction Standards q 4.4 SMACNA Low Velocity Duct Construction Standards 3.5 Applicable TVA General Construction Specifications I
j >4.5.1 G-29 " Process Specifications for Welding, Heat Treatment, Nondestruc-i tive Examination, and Allied Field Fabrication Operations." {
TVA 10535 (DED 5-74)
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4.5.2 G-37 " Testing and Balancing of Heating, Ventilating, and Air Conditioning Systems."
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4.6 TVA Design Criteria 4.6.1 SQN-DC-V-3.0 " General Design Criteria for the Classification of Piping, Pumps, Valves, and Vessels."
4.6.2 SQN-DC-V-3.2 " General Design Criteria for the Classification of Heating, Ventilating, and Air Conditiong Systems."
4.7 ASIM A211 - Specification for Special Welded Steel or Iron Pipe
- 5.0 REQUIREMENTS FOR FIELD INSTAi.LATION OF PIPE AND DUCT SYSTEMS
. The requirements pertaining to installation, testing, inspection, atamping, and certification shall be in accordance with the rules applicable to the TVA classification and type of component involved.
Paragraph 3.12 defines the boundary of jurisdiction. When joining piping and components of different classifications or components which have been manufactured under different code editions,and addenda, the .
7,. more restrictive requirements shall govern.
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JM . The following codes and standards govern the installation and . erection
- of TVA pipe and duct systems. In some esses design drawings and
[ specifications may contain additional requirements applicable to a specific component or system.
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F . Attac hment 4
- FIELD FABRICATION, ASSEMBLY EXAMINATION, Page 8 of 14
.' AND TESTS FOR PIPE AND DUCT SYSTEMS N2M-865
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Design for Seismic
- Class' Loading Applicable Codes and Standards A Yes 1. ANSI B31.7 (1969) and 1970 Addenda, Class I*
B Yes 2. ANSI B31.7 (1969) and 1970 Addenda, Class II*
C/D*** Yes 3. ANSI B31.7 (1969) and 1970 Addenda, Class III*
G Yes 4. ANSI B33.1.0 (1967) issued July 26, 1967.
H No 5. ANSI B31.1.0 (1967) issued July 26, 1967, with NDE of butt welds per ANSI B31.1.0C, 1972.**
I J No 6. ASME Boiler and Pressure Vessel Code,Section I, 1968 Edition through Winter 1969 Addenda, inclusive.
K/L Yes/No 7. Unclassified, to be specified on applicable drawings.
M/N Yes/No 8. ANSI B31.5 (1967),1968 Addenda.
Q Yes 9. Round Duct, Steel, Spiral, or Longitudinal Walded Seam, ASTM A 211, SMACNA High Velocity Duct
, Construction Standards, Second Edition,1969, and
! ANSI B31.1.0 (1967).
R No 10. Round Duct, Steel, Spiral, or Longitudinal Locked ~~
or Walded Seam, SMACNA High Velocity Duct Construction Standards, Second Edition, 1969, and ANSI B31.1.0 (1967).
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.(S/T Yes/No 11. SMACNA High Velocity Duct Construction Standards, Second Edition, 1969. ,
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{ U/V Yes/No 12. SMACNA Low Velocity Duct Construction Standards, Fourth Edition, 1969.
General Construction Specification "G-29" contains process specifications which define and shall be used to meet the TVA requirements for fabri-cation in accordance with the ASME, AWS, ANSI, or other codes or standards referenced therein. "G-37" shall be used for testing and balancing heating, ventilating and air ccaditioning systems.
All welding used in construction of TVA classes Q, R, S, T, U, and V shall be in accordance with G29M or G29C procedures.
- B31 Case 115 December 1973 - Accepts Rules of Section III of ASME Boiler and Pressure Vessel code as complying with the requirements of B31.7 - 1969 and applicable addenda for the respective class of construction. Use of portions of later edition and addenda of any code or standard listed in section 5.0 or of portions of ASME Section III must be approved by the Nuclear Standards and Materials Section of DED-MEB. Approvals shall be issued as addenda to this specification.
- Refer to memorandum R. H. Dunham to G. G. Stack dated February 23, 1973, Contract 69C60-64422.
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AND TESTS FOR PIPE AND DUCT SYSTEMS N2 M 65
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w n 6.0 CLASSIFICATION OF SYSTEMS The codes and standards listed in section 5.0 of this specification do
,. not provide guidance in the selection of the class of components for a specific system. Such guidance is derived from systems safety criteria applicable to specific types of nuclear power systems as specified in engineering standards or as may be required by regulatory authorities.
6.1 Pipe and Duct Lines Applicable physical piping and duct drawings should be referred to for exact limits of system classification. Refer to SQN-DC-V-3.0 and '
SQN-DC-V-3.2 for guidance.
. 6.2 Instrument Sensing, Sampling, and Radiation Monitoring Lines Lines that are part of the reactor coolant pressure boundary, greater than 3/8-inch inside diameter and not isolated from the main process piping by a 3/8-inch or smaller orifice, are to be TVA Class A. All other lines attached to a TVA Class A fluid system boundary are TVA i
Class B out to and from (but not including) the associated instrument, i
and/or to and including the first normally closed valve.
Lines attached to TVA Class B fluid' system boundaries are TVA Class B;
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v , lines attached to Class C, D, M, Q, or ,S boundaries are TVA Class C , >
i to and from (but not including) the associated instrument, and/or to and including the first normally closed valve.
Lines and valves forming a part of primary contain= ant isolation are to be TVA Class B.
i Lines other than those described should be TVA Class G within seismic structures and TVA Class H in nonseismic structures.
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F Refer to footnote in section 5.0.
i j Site Inquiry:
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[ May the rules of ANSI B31.7c-1971 addenda, paragraph 1-723, regarding materials identification and certification be used in lieu of these 5
specified in ANSI B31.7 (1969) and 1970 addenda.
h D2D-MEB Answer:
It is permissible to use the rules of ANSI B31.7c-1971 addenda, paragraph 1-723, for materials identification and certification at Sequoyah.
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M. N. Bressler g Principal Engineer, Nuclear Standards y and Materials Section, DED-MEB i
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Page 11 of 14 FIELD FABRICATION, ASSEMBLY EXAMINATION, AND TESTS FOR PIPE AND DUCT SYSTEMS N2M-865
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ADDENDUM II .
CERTIFICATION REQUIREMENIS'IOR MATERIALS FOR SUPPORTS, ATTACHMENTS, AND RESTRAINTS Refer to footnotes in section 5.0.
I Site Inquiry:
^
May the interpretations noted in the following references be utilized for
, determination of traceability and documentation requirements ? .
- 1. Memorandum from R. G. Domer to R. H. Dunham, dated August 17, 1976, subject - Sequoyah Nuclear Plant - Traceability of Materials and j hamination Requirements for Component Supportis.
.! 2.* Memoranda from R. C. Domer to R. H. Dunham, dated April 20, 1976, and May 21, 1976, subject - Watts Bar and Later Nuclear Plants - Traceability of Material and Examination Requirements for Component Supports.
1
- 3. Memorandum from D. R. Patterson to R. M. Pierce, dated September 5,1975, l .
subject - Sequoyah Nuclear Plant Units 1 and 2 - Certification Requirements I I. for Integral A.ttachments and Component Standard Supports for TVA Class A, j] , ,
B, C, and D Piping - SQN-68A.
EN DES-MEB Answer:
We agree with application of the requirements discussed in the 'above documents, as modified and outlined below, to activities at Sequoyah
! A. Materials used for permanent attactimen'ts to Class A and B piping require CMIR's, heat number traceability, and identification. Refer to ASME Section III, 1974 edition through Susumer 1976 addenda, paragraphs NA-3766.6, NB-2130, NB-2150, NB-4431, NC-2130, NC-2150, and NC-4431.
B. Materials used for permanent attachments to Class C and D piping require CNTR's and heat number traceability. Heat number traceability and material idenfification shall be in accordance with the requirements of the applicable material specification. Refer to ASME Section III, 1974 edition through Summer 1976 addenda, paragraphs NA-3766.6, ND-4431, ND-2190, and ND-2130.
C. Temporary or minor permanent attachments shall be as specified in ASME Section III, 1974 edition through Susmer 1976 addenda, paragraphs NB-4435 (TVA Class A), NC-4435 (TVA Class B), and ND-4435 (TVA Class C and D).
Materials used may be of noncertified material providing the requirements of these paragraphs are met. Materials identification shall be in accordance with NB-2150, NC-2150, And ND-2150 as applicable.
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FIELD FABRICATION, ASSEMBLY EXAMINATION, AND TESTS FOR PIPE AND DUCT SYSTEMS N2M-865 ADDENDUM II CERTIFICATION REQUIREMENIS WR HATERIALS FOR SUPPORTS, ATTACHMENTS, AND RESTRAINTS Refer to footnotes in-section 5.0.
Site Inquiry:
Hay the interpretations noted in the following referueces be utilized for determination of traceability and documentation requirements ?
l 1. Memorandum from R. C. Domer to R. H. Dunham, dated August 17, 1976, i subject - Sequoyah Nuclear Plant - Traceability of Haterials and
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Rwa =4 nation Requirements for Component Supports.
- 2.
- Memoranda from. R. C. Domer to R. H. Dunham, dated April 20, 1976, and May 21, 1976, subject - Watts Bar and Later Nuclear Plants - Traceability
! of Haterial and Examination Requirements for Component Supports.
- 3. Hemorandum from D. R. Patterson to R. H. Pierce, dated September 5,1975, subject - Sequoyah Nuclear Plant Units 1 and 2 - Certification Requirements H for Integral Attachments and Component Standard Supports for TVA Class A, e.,/ B, C, and D Piping - SQN-68A.
l EN DES-MEB Answer:
We agree with application of the requirements discussed in the above documents, as modified and cutlined below, to activities at Sequoyah I
I A. Materials used for permanent attachmen'ts to Class A and B piping require CMIR's, heat number traceability, and identification. Refer to ASME
- Section III, 1974 edition through Summer 1976 addenda, paragraphs NA-3766.6, l NB-2130, NB-2150, NB-4431, NC-2130, NC-2150, and NC-4431.
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l B. Materials used for permanent attachments to Class C and D piping require CMIR's and heat number traceability. Heat number traceability and material idenfification shall be in accordance with the requirements of the applicable material specification. Refer to ASME Section III, 1974 edition through Summer 1976 addenda, paragraphs NA-3766.6, ND-4431, ND-2190, l
and ND-2130.
1 C. Temporary or minor permanent attachments shall be as specified in ASME Section III, 1974 edition through Summer 1976 addenda, paragraphs NB-4435 (TVA Class A), NC-4435 (TVA Class B), and ND-4435 (TVA Class C and D).
Materials used may be of noncertified material providing the requirements l
of these paragraphs are met. Materials identification shall be in l
accordance with NB-2150, NC-2150, and ND-2150 as applicable.
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. . - AND TESTS FOR PIPE AND DUCT SYSTEMS N2M-865 1
Y ~ D. Component Standard Supports as defined in ASME Section III,1974 edition through Summmer 1976 addenda shall require certification of compliance to MSS SP-58 and/or the TVA specification. Requirements for items such as gaskets, seals, springs, compression end plates, bearings, retaining rings, washers, wear shoes, hydraulic fluids, etc. shall be in accordance with ASME Section III,1974 edition through Sunumer 1976 addenda, subparagraphs NF-2121. The component support Manufacturer shall provide a list of such asterials. These materials do not require Materials Manufacturer's COC's.
j" E. Material for pipe rupture restraints and jet impingement sleeves that are not a part of the fluid pressure boundary shall be marked with the . . ,
specification utsaber and grade in accordance with the requirements of the i applicable material specification, or else a control procedure shall be ;
employed and certificate of compliance issued which ensures that the j specified materials are used.
Proposed t
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. FIEID FABRICATION, ASSEMBLY EXAMINATION, N2M-865 AND TESTS FOR PIPE AND DUCT SYSTEMS
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Gs ADDENDUM III CLARIFICATION OF REQUIREMENTS FOR CLASS U AND V DUCTS AND HANGERS AND OPERABLE / INOPERABLE DUCTS Site Inquiry:
Please clarify the following:
- 1. Requirements for installation and documentation of supports on TVA Class U and V ducts.
- 2. Definition of ducts which are identified on system drawings as " operable" or " inoperable."'
EN DES-MEB Answer:
- 1. Examination and do'cumentation for safety related HVAC piping and duct-work and all supports (Seismic Category I and dead load) located in a Seismic Category I building shall be limited to the following:
A. Field inspection to insure conformance to design drawings which may be accomplished by complete documentation as outlined in. Sequoyah (J
/.i) N.P. Construction Procedure M-27, Attachment A, Revision O.
i B. Certificate of compliance for all structural steel required for fabrication of supports and restraints and compliance with drawings.
Material traceability for fabrication of HVAC piping and ductwork is specifically excluded except when required for TVA Classes A, B, C, or D. -
II. All HVAC piping and ductwork designated operable (OPER) is essential to the operation of safety related systems and is supported in accordance to Seismic Category I requirements (horizontal and vertical loads).
Systems in Category I building not indicated to be operable are non- ,
- safety related and are provided with dead load supports only. Although these systems are non-essential, the dead load supports (vertical I seismic load only) serve a safety function to insure that an essential system is not degraded by failure of a non-essential system.
Proposed Md Approved J^- rr M. N. Bressler Principal Engineer, Nuclear Standards and Materials Section, EN DES April 6, 1977 l
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