ENSA ENWESA SERVICES INDEX

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Stephany Baldwin
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The combination of state of the art software with the engineer s knowledge and experience is complemented by the experience of Enwesa in the field of electrical engineering and instrumentation and

Dynamic e. Elasto-plastic f. Fracture mechanics g. Fatigue h. Bend i. Impact j. Fluid dynamics 1.2. Manufacturing engineering (drawings, specifications, procedures, tools) and cost analysis 1.3.

1 ENSA ENWESA SERVICES INDEX 1. ENGINEERING, DESIGN AND TECHNOLOGY SERVICES (Ensa / ENWESA) Ensa has extensive experience designing nuclear components and pressure vessels since 1973 according to international standards and codes. The combination of state of the art software with the engineer s knowledge and experience is complemented by the experience of Enwesa in the field of electrical engineering and instrumentation and control Design of nuclear components and pressure vessels according to FEM standards, ASME, RCC-M, Euro code, etc.. Conceptual and detailed design: a. Thermal b. Structural c. Seismic d. Dynamic e. Elasto-plastic f. Fracture mechanics g. Fatigue h. Bend i. Impact j. Fluid dynamics 1.2. Manufacturing engineering (drawings, specifications, procedures, tools) and cost analysis 1.3. Electrical engineering a. Electrical detail engineering (solid conductors, connection and distribution boxes, padding) b. Electric load and consumption studies (electric legalization studies, lighting studies) 1.4. Instrumentation and Control Engineering a. Specifications c. Loops drawings d. Process diagrams e. Implementation plans f. Control Systems (PLC's, Scadas)

Programming of customer-defined system Commissioning Documentation (technical file, CE marking) b.

Quality control systems Test benches Productive system data acquisition 1.6. Project management, scheduling, purchasing, etc. documents 2.

2 1.5. Technological Developments a. Process Automation Industrial automation projects and studies Detailed engineering development Network architecture Manufacturing Programming of customer-defined system Commissioning Documentation (technical file, CE marking) b. Robotics Cartesian, SCARA, anthropomorphic Palletizing, handling, welding, machining, interpress, inspection, sealing and painting c. Quality control systems Test benches Productive system data acquisition 1.6. Project management, scheduling, purchasing, etc. documents 2. MANUFACTURING SERVICES (Ensa / ENWESA) Ensa is primarily a manufacturer of large components (NSSS), fuel containers and racks for nuclear market. Through its own workshop and the one of its subsidiary Enwesa, offers various possibilities of manufacture both for nuclear and non-nuclear market Heavy boiler making a. Nuclear components (NSSS) Reactor Pressure Vessel Steam Generators Pressurizers Main Coolant Piping b. Other heavy equipment Reactor vessel support Internals Gas strippers Spent fuel racks Boron accumulators Heat exchangers c. Heat exchangers

2.2. Other manufacturing services and products a. Prefabrication of pipe and components b. c. Tanks and containers d. Special welds e.

Quality Assurance Services Purchasing support Supplier qualification and audits Root cause analysis. i. Integrated modular Systems j.

The Center, with ENAC accreditation, has available equipment and certifications that meet the requirements of international standards. 3.1. Chemical laboratory a.

Analysis of water, oils and other products, viscosities determination e. Dew point determination, measurement of ph and conductivity f. Determination of oxygen content in gases 3.2.

3 2.2. Other manufacturing services and products a. Prefabrication of pipe and components b. c. Tanks and containers d. Special welds e. Design and manufacture of special tooling and structures f. Mock-ups Design for special services g. Prototypes h. Quality Assurance Services Purchasing support Supplier qualification and audits Root cause analysis. i. Integrated modular Systems j. Packaging & delivery of all manufactured equipment capacities 3. ADVANCED TECHNOLOGY CENTER AND LABORATORY SERVICES (Ensa) The Advanced Technology Center integrates Ensa laboratories. The Center, with ENAC accreditation, has available equipment and certifications that meet the requirements of international standards Chemical laboratory a. Chemical analysis of carbon and alloy steels, stainless steels, nickelbased, aluminum, copper, cast iron, etc.. b. Materials and weld deposits analysis c. Delta ferrite determination d. Analysis of water, oils and other products, viscosities determination e. Dew point determination, measurement of ph and conductivity f. Determination of oxygen content in gases 3.2. Metallurgical laboratory a. Structural evaluation and analysis of breakage of metallic materials Micro-structural characterization of steels and alloys Macroscopic and microscopic examination of alloys and welds Corrosion tests in stainless materials Vickers micro hardness tests Defects analysis Obtaining replicas for subsequent metallographic study Advice on materials, welding, corrosion and repair of defects

4 3.3. Welding laboratory a. Research and development of new welding processes and their qualifications, mainly in the following materials Carbon and low alloy steels, austenitic and precipitation stainless steels Nickel-base alloys, aluminum alloys and copper-nickel alloys 3.4. Mechanical tests laboratory a. Tensile tests at room temperature and high temperature b. Bend tests c. Toughness tests, according to standard ASTM / ASME and ISO / DIN, at ambient and low temperatures (-150 C) d. Fracture test, drop weight (Pellini) e. Brinell, Vickers and Rockwell hardness tests f. Preparation of test coupons and specimens for testing g. Stress relief heat treatments in coupons h. Upgrade of materials, with corresponding CMTRs (ASME approval) 3.5. Metrology and Calibration Laboratory a. Calibration and certification of machinery and equipment Dimensional Temperature Electrical Pressure Power b. Measurement and certification of standards and components in general 3.6. Robotic and automation laboratory a. Developments and special applications of robotics and automation Welding processes Test and inspection Installation 3.7. R + D + i projects

4. ASSEMBLY AND EQUIPMENT MAINTENANCE SERVICES (Ensa / ENWESA) Through its Business Development Department and its joint venture Enwesa, Ensa offers a variety of services to meet the needs of nuclear

While Ensa focuses its efforts in the nuclear market, Enwesa is a service company specializing in the assembly and maintenance of mechanical, electrical and communications in power production plants,

For this, Enwesa has mechanical components and structures manufacturing facilities, with clean area for electrical and instrumentation works. 4.1. Mechanical maintenance a.

Electricity production plants commissioning a. Mechanical installations: Gas and steam turbines Boilers, exchangers, equipment, etc.. Pipes, prefabrication and assembly structures b.

5 4. ASSEMBLY AND EQUIPMENT MAINTENANCE SERVICES (Ensa / ENWESA) Through its Business Development Department and its joint venture Enwesa, Ensa offers a variety of services to meet the needs of nuclear and conventional power plants. While Ensa focuses its efforts in the nuclear market, Enwesa is a service company specializing in the assembly and maintenance of mechanical, electrical and communications in power production plants, both thermal and nuclear. Part of the activity of Enwesa takes place in other industries such as petrochemical, rail, marine and other, where it has a growing presence. For this, Enwesa has mechanical components and structures manufacturing facilities, with clean area for electrical and instrumentation works Mechanical maintenance a. Heat exchangers and condensers: cleaning and re-tubing b. Rotating equipment: review of pumps, motors, fans c. Gas and steam turbines d. Diesel Engines 4.2. Electricity production plants commissioning a. Mechanical installations: Gas and steam turbines Boilers, exchangers, equipment, etc.. Pipes, prefabrication and assembly structures b. Electrical assembly and Instrumentation and Control (I&C) c. Detailed engineering and commissioning support d. Mechanical, electrical and I & C modifications e. On-site special welding and machining f. Office and technical assistance 4.3. Valves a. Review of valves: gate, globe, retention, butterfly b. Repair, weld recharges, bench and online tests c. Adjustment and calibration of pneumatic and motorized actuators d. Safety valves bench and on-line tare e. Screening and diagnosis of motorized actuators f. Screening and diagnosis of pneumatic valves g. Resources and activities programming h. Assistance in preparation of outages (spare parts)

6 4.4. Rotating equipment a. Assembly, adjustment and alignment Gas, steam, hydraulic turbines Turbo pumps, various pumps Generators, gearboxes, moving grids b. Installation and inspection Valves and bearings of turbines and pumps Mechanical seals. Ventilation equipment Electric motors. conveyors Hydraulic and pneumatic systems Compressors and transmissions c. Alignment of rotating equipment with laser equipment d. Commissioning Steam Condensers Auxiliary equipment, modules and skid Diffusers and gas turbine exhausts Filters and air intake ducts Acoustic enclosure panels 4.5. Installation and electrical maintenance a. Electrical installation Power Distribution Lighting Substation CCM s Switchboards b. Electrical maintenance Under-voltage works Thermography and revisions Transformation Centers Lines Engines c. Process Equipment d. Analyzers 4.6. Assembly and maintenance of instrumentation a. Instrumentation assembly Instruments assembly Drive Lines Wiring Commissioning and start-up b. Instrumentation maintenance Instrumentation Analyzers Technical support Control systems

5. NUCLEAR SERVICES (Ensa/ENWESA) a. Main equipment activities RP Vessel erection work & related piping.

balance of main pumps and motors On site repair and machining of components Development of special tools for welding Sludge cleaning from the tube

Installation of equipment and auxiliary elements Repair of studs and stud holes. Inspection, cleaning and repair of flanges.

Tools inspection and repair Joints replacement of Steam Generator (SG) Tubes plugging (SG) Installation of Nozzle Dams (SG) Manhole opening and

7 5. NUCLEAR SERVICES (Ensa/ENWESA) a. Main equipment activities RP Vessel erection work & related piping. Opening and closing of the reactor Movement of internals (removal and insertion) Opening and closing of steam generators and pressurizers Review and balance of main pumps and motors On site repair and machining of components Development of special tools for welding Sludge cleaning from the tube sheet of steam generators Replacing pins of the guide tubes in the internals of reactor (Split Pin) Helicoils installation Electro polishing Installation of equipment and auxiliary elements Repair of studs and stud holes. Inspection, cleaning and repair of flanges. Removal of irradiated samples. Guide tubes replacement. Visual inspection of reactor vessel head and internals. Foreign objects search and retrieval. Tools inspection and repair Joints replacement of Steam Generator (SG) Tubes plugging (SG) Installation of Nozzle Dams (SG) Manhole opening and closure (SG) Pressurizer heaters replacement. Primary and secondary system inspection Maintenance during operation (preventive, corrective, ) Revision during outages Removal and installation of reactor cooling pumps and motors

8 b. Decontamination and decommissioning Diamond wire cutting Waste segregation Development of tools and shielding for remote operations c. Waste treatment Design, manufacturing and installation of resin drying plants Design, manufacturing and installation of waste drying systems Design, manufacturing and installation of cementation plants for residues of a wide range of radiation activity level Waste treatment turnkey projects 6. COMMUNICATIONS AND SECURITY (ENWESA) FOR NUCLEAR POWER PLANTS AND OTHERS. a. Intercom systems b. Compliance of emergency regulation EN c. Process intercom d. Telephony / Data / PABX / LAN / WAN e. CCTV Surveillance f. Flameproof facilities g. Burglar alarm systems and perimeter control h. Access control security systems i. VHF-UHF radio systems j. Fiber optic communications

GENERAL CONTENTS SECTION I - NUCLEAR ISLAND COMPONENTS

- June 2013 Addendum GENERAL CONTENTS SECTION I - NUCLEAR ISLAND COMPONENTS SUBSECTION "A" : GENERAL RULES SUBSECTION "B" : CLASS 1 COMPONENTS SUBSECTION "C" : CLASS 2 COMPONENTS SUBSECTION "D" : CLASS