Details electricity lighting

Construction detail for exterior electrical board; suspension detail with clamp on h?a? column; retention detail with clamp in h?a? column; detail of iron arm plus type al400 device with connection from pre-assembled with air fuse; Violin rein detail and simple rein for h?a columns? in withholdings; detail of the base of h?a? columns; detail of underground cable laying and three-phase panel for public lighting with contactor and switch key to connect live.