Qinshan CANDU Nuclear Power Plant - IAEA

IAEA Workshop 

Charlotte, North Carolina 

August 19-20, 2010 

Case Study: 

Past and Recent Experiences from AECL 

Qinshan CANDU Nuclear Power Plant 

PROTECTED - SENSITIVE / PROTÉGÉ - DÉLICAT 

A. Khan 

Manager, g , EC6 Plant Layout, y , 

Containment Design & Constructability

Scope of Presentation 

�Qinshan CANDU Nuclear Power Plant 

�S �Salient li t Contract C t t DDetails t il and d CConstruction t ti RResponsibilities ibiliti 

�Challenges 

�Construction Approach 

�Important Construction Decisions 

�Major Issues During Construction 

�Site �Site Quality Assurance (QA) 

�Major Achievements 

�Reasons for Success of Project 

�S �Summary and dCConclusions l i 

PROTECTED - SENSITIVE / PROTÉGÉ - DÉLICAT 2

�2 Unit 728 MWe Gross Plant 

�Qinshan, Zhejiang Province, 

PR of China 

�Cooling water provided from 

HHangzhou h BBay, 

(Yellow Sea) 

�International Project with 

fnancing from China, Canada, 

Japan and USA 

Qinshan CANDU Nuclear Power Plant 


Salient Contract Details and Construction 

Responsibilities 

�In-Service Unit 1, 72 months from start of excavation (February 12, 1997-February 

11, 2003) 

�Unit 2, 9 months later 

�� CContract t t iis bbetween t Thi Third d Qi Qinshan h Nuclear N l Power P Company(TQNPC)-AECL 

C (TQNPC) AECL 

�TQNPC Responsibilities: 

� PPrepare Site Si 

� Prepare Permanent Site Facilities 

� Manage Balance of Plant (BOP) construction 

AECL is General Contractor and is completely responsible for: 

� Overall Project Management 

� Manage Nuclear Steam Plant (NSP) Construction at Site 


Salient Contract Details-Continued 

� Bechtel is responsible for BOP Engineering and provides technical assistance at site for BOP 

construction 

� Hitachi is responsible for T/G Contract and Accessories 

� Construction contractors are responsible for : 

� NSP construction 

� BOP construction 

� Responsible for preparing Level 3 Schedules 

�� Quality Control of all construction activities 

� Major Contractors: 

� CNI-23 

� Huaxing (HXCC) 

� CNI-22 

� Zhejiang Thermal Power Company (ZTPC) 

� TQNPC is responsible for all payments 


Challenges 

� Very restricted site. Small peninsula on which plant is to be placed. 

� Required considerable reclamation from sea to locate full plant 

� Required considerable detailed planning in early stages of construction 

� Very high silt content, divers of no use 

� Construction contractors have no previous CANDU construction experience, but have 

experience of nuclear power plant construction 

� Cultural differences/sensitivities 

� Maximization of localization 

� 1 st time use of open top method of construction on CANDU 6 construction 

� 1st � 1 time use of modularization on CANDU 6 construction 


Construction Approach 

� Quality Assurance (QA): Follow Canadian QA Standards on construction 

of nuclear power plants. AECL has followed this approach on other 

international plant in Korea, Argentina, and Romania 

� Divide NSP and BOP construction and specify different contractors for 

each area 

� Excavation contract given to one company for entire site 


Construction Approach (Continued) 

Major Construction Contracts: 

� Site Excavation (HXCC) 

� NSP Civil Construction (HXCC) 

� NSP Mechanical/Electrical Installation (CNI-23) 

� BOP Civil Construction (CNI-22) 

� BOP Mechanical/Electrical Installation (ZTPC) 

� Piping Fabrication (CNI-23) 

� Supply of Concrete (CNI-22) 


Important Construction Decisions 

� Dedicated Concrete Batch Plant at Site 

� Setting up of Welding Procedures and Welder Training Program very 

early y in Construction Phase 

� Use of Nuclear Electrodes only at Site 

� AECL Sole Source for Procurement of NSP Material 

� Localization of HVAC, Electrical works 

� Upgrading pg g of Very y Heavy y Lift ( (VHL) ) Crane for Open p Top p Method of 

Construction 


Major Issues During Construction 

� Coordination between Construction Contractors 

� Hot Weather Concreting 

� Structural Steel, Unavailability of Heavier Sctions 

�� Lack of fS Shop Drawing i Detailers i in i China C i 


Site Quality Assurance (QA) 

� AECL set QA requirements for all construction 

� Set up Non-Conformance Report (NCR) Process to control work including 

issuing Stop Work Orders for major NCRs and Field Change Request 

Process to control design changes at site 

� TQNPC had own Quality y Surveillance Team 

� AECL had own Quality Surveillance Branch 

� Construction Contractors responsible for Quality Control 


Major Achievements 

� Shortest construction of any NPP in China from 1st concrete to In-Service 

(54 months) 

� Shortest duration to construct perimeter wall (14 days) 

� Best integrated leak rate of all CANDU 6 nuclear power plants 

� 70 heavy lifts of equipment with the VHL crane 

� Steam S e ge generator e o installed s ed in 8 hours ou s 

� Fuel channels installed in 64 days 


Reasons for Success of Project 

� Client/Owner was fully 100% behind completion of project and gave full 

support to AECL and its sub-contractors 

� Excellent teamwork between all participants 

p p 

� AECL had available manpower resources with extensive experience of 

construction and engineering on overseas projects 

� Use of Open Top Method of Construction 

� Use of Modularization 


Summary and Conclusions 

�AECL CANDU 6 built to shortest construction schedule of any NPP 

in China even though it was first CANDU 

�Experience and achievements of Chinese contractors show that with 

continued use of Open Top Method of Construction, Construction earlier design 

and procurement, and some added construction modifications, 

construction of the CANDU 6 which is an existing design and proven 

technology, can be shortened to a 66 month project schedule from 

CED.

Qinshan Nuclear Power Plant

Qinshan CANDU Nuclear Power Plant - IAEA

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