cable clouds coruna electric electricity eu galicia high industry lines pole poles portiño power sky Spain tower voltage wire wires copyspace evening insulator pylon sunlight transmission wooden insulate line old post supply transmit wood wooden.pole city clean dump energy environment garbage junk litter waste windmill amp bombillo bulb ceiling illuminate illuminating light light bulb lumen lumens luz radiance radiat shine socket watt AC current distribution electrical installation insulation overhead black chock danger dangerous fence net sign station sundtech volt warning yellow array collect collector cyprus domestic gadget generate generator panel plate solar sun electrician hazard icon illustration industrial internet protect protection risk safety security signal signpost