To ensure the quality of the welds, it was necessary to carry out a prior heating and later electric heat treatment in the penstock.
This work involved around 25 complete heat treatment and preheating machines.
The work lasted for 15 continuous months.
The T.C. of La Muella II belongs to Iberdrola.
The hiring company was Alstom Hydro España.
Spain. Cortes de Pallás, Valencia.
2014 – 2015