English to Spanish Other History Historias sobre el totalitarismo en Europa

At the gates in the wire barrier, the electric wire was
buried underground at a depth of 60 cm, insulated and covered by bricks. An automated switch of the
electrifed wire barrier was placed in a wooden cupboard at the guardhouse. The key to the cupboard
was held by the commander of the unit. When he was away, it was in the possession of his deputy or the
supervising ofcer of the unit10.
The electrifed wire barrier was the middle fence of three and it was dangerous for the escapees
because of its high voltage.


P.S. ¿Era la valla del medio de tres? O ¿era la valla del medio de tres vallas? ¿Quizás lo último queda algo repetitivo?