Renovation of the penstock at Bens
![](https://www.ponticelli.com/wp-content/uploads/2018/08/Conduite_forcee_Bens.jpg)
Client
BATTAGLINO
Project Management: HYDROSTADIUM
Commissioned by: EDF
ROLE
Boiler works
LOCATION
EDF power plant at Bens – France (Dpt 73)
DATE
Project in progress
CLIENT SPECIFICS
The penstock at Bens was put into service in 1959. To eliminate corrosion problems EDF has started important renovation works to extend the plant’s operating life span by 20 years. This requires a 7-month production shutdown without any major maintenance works.
PONTICELLI’S CHALLENGES
This worksite requires Ponticelli’s skills in site boiler works (access roads, sectioning, welding works) in steep work areas with poor access (helicopter transportation). Production of new components in our boiler works workshop in Echirolles (fabrication of expansion joints, penstock section fabrication)
INTERVENTIONS
- 900 mm shaft diameter
- 1,985 linear metres and 535 m drop height
- 4 expansion joints to be designed, produced and replaced
- 11 work stations dispersed along the linear
- About 50 helicopter trips for our equipment
CHIFFRES CLÉS
50
helicopter trips
for our equipment
11
work stations dispersed along the linear
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