DEKRA Industrial

Torbjörn Sjö, Business Area Nuclear 2011-05-09

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Resources

• DEKRA more than 24 000 employees

•615 persons with NDT certificates

• Mechanized inspection:

•More than 80 persons with NDT certificates

•More than 10 design engineers

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Number of experts in DEKRA Industrial

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A large reservoir of know how in the international network of DEKRA (4.431) A large reservoir of know how in the international network of DEKRA (4.431)

Total SE FI GER F CZ LI TUR

PressureEquipment 245 84 29 68 62 - - 2

Lifts 225 75 - 50 100 - - -

Cranes 1501 75 - 341 1085 - - -

Machinery 133 15 - 28 90 - - -

NDT 615 220 144 87 75 63 26 -

ElectricalEquipment 932 - 3 54 875 - - -

HSE 780 - - 300 480 - - -

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Markets

BWR, PWR, VVER, RBMK

New plants is a huge new market

Conventional industry, important to share resources

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Experience of our staff

InspectionsQualificationDevelopment• Design of manipulators

• Vessel, Nozzle, BMI

• Internals

• Piping

• Control systems

• NDE development

• Sizing TOFDT

• Phased array

• ET

• VT, AVT

• Probes for special applications

• Sweden

• France

• Finland

• Switzerland

• USA

• BWR

• PWR

• VVER

• RBMK

• Conventional industry

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Some examples of services:

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Hugin - ROV for visual testing

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Remotely operated Pan & tilt camera Zoom capability Full color Reliable thrusters Standardized control system Compatible with qualified procedures

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Control rod inspection – new manipulator: Styrbjörn Starke

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Inspection speed increased4 times!

New probe head, UT and ETHandles two control rods in parallelTwo manipulators used, four control rods in operation

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PUTS – Mechanized Inspection of stainless steel welds in piping

The project has qualified Phased array techniques for all Swedish NPPs Single sided inspection

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Direct longitudinal response

SLL Shear (S) Figure: Merge 40-70 degrees

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Inspection order for Ringhals 2-4

Parallel inspection! Inspection of the whole

reactor in 5 days

• Skidbladner: Circumferential and longitudinal shell welds including the bottom dome

• Särimner: Inlet and Outlet Nozzles, Nozzle to shell welds, inner radius and connection welds

• Gungner: BMI Nozzle and J-groove

• Draupner: Moulding VT tool for BMI J-groove weld

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Moulding VT ToolDraupner

A moulding tool based on the BMI Nozzle manipulator concept which will be remotely controlled with rods and a wire system

The moulding tool makes a mould from the full circumferential of the BMI J-groove weld

Detection target 2mm x 3µm

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The Motor Control Unit (MCU) designed for 6-scanning axis including local intelligence, power supply and motor drives and remote

controls for ROV functions and surveillance camera functions

The pneumatic box provides all the manipulators pneumatic functions; clamping cylinders, protecting overpressure, buoyancy

functions, etc

Controllers

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Training and qualification

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VVER Vessel concept for reduced inspection time with 3 manipulators

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The inspection includes both UT and ET: •Surface testing using Eddy Current to establish presence of cracks and their positions•TOFD testing using multiple probe separations in order to exactly measure crack size over varying depth•TOFD testing to verify stellite layer thickness•TOFD testing to detect lack of fusion between stellite layer and base material

The inspection includes both UT and ET: •Surface testing using Eddy Current to establish presence of cracks and their positions•TOFD testing using multiple probe separations in order to exactly measure crack size over varying depth•TOFD testing to verify stellite layer thickness•TOFD testing to detect lack of fusion between stellite layer and base material

Inspection of stellite cladding on surface of Core Plate Radial Support key

The scanner placed in the mockup

Cracks in the stellite surfaceCracks in the stellite surface

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Steam Generator welds

Qualified technique developed for Ringhals

Circumferential and longitudinal welds with TOFD technique

Nozzles with TOFD and pulse echo

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LKS, MPT-F3 Vent, Mätarlarven

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OD and ID inspection of steam dryer for Oskarshamn

Mechanized PT

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The VHP system in inspection configuration and in service mode

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Probe design

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ET and UT BMI Nozzle ID

ET ÅF-Star for defects in all directions

ET and UT VHP

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The DEKRA advantage

We are one of the largest organizations for manual and mechanized inspections in Europe!

Worldwide operations, important to understand local culture and language. Our staff should be able to communicate in English.

Independent supplier of all types of inspection Existing solutions for mechanized inspection in Nuclear power plants. State-of-

the-art manipulators developed for PWR and VVER Experienced engineers, projects in PWR, BWR, VVER and RBMK Strong organization to develop new robotics and NDE procedures as well as

probes Large pool of personnel in France, Germany, Sweden, Finland, Czech Republic

and Lithuania for manual and mechanized NDT QA and QC resources for new plants/upgrade Several labs for destructive testing

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