The rectangular towers are nearly identical to the Ontario and Necaxa power lines. Note one of the power lines is entirely placed on rectangular towers, while the second power line uses noth pyramidal and rectangular towers. Both 4 x 44kV lines run parallel on the entire way between power plant and Niteroi. The mentioned 100 kV branch to Rio de Janeiro seems to removed. An identical power line also exists between Itatinga and Santos, crossing the harbor on two huge pylons.

https://reference.insulators.info/publications/view/?id=3518&h0=brazil