Round here a lot of the transformers are on poles, and the bigger ones on are on pairs of poles with 'H' bars - indeed a new housing estate has recently gone up that is all supplied this way, even though the last 100m or so of LV is underground to each house. The new bits of 11kV have a plastic sheath on the cables but are still on insulators in the normal way.
Oddly it is the 1960s and 1970s housing that has pad mount transformers and underground HV, but the newer housing is now creeping onto the valley floor and what is very clearly floodplain, so I suspect that is affecting the local design choices.
Round here a lot of the transformers are on poles, and the bigger ones on are on pairs of poles with 'H' bars - indeed a new housing estate has recently gone up that is all supplied this way, even though the last 100m or so of LV is underground to each house. The new bits of 11kV have a plastic sheath on the cables but are still on insulators in the normal way.
Oddly it is the 1960s and 1970s housing that has pad mount transformers and underground HV, but the newer housing is now creeping onto the valley floor and what is very clearly floodplain, so I suspect that is affecting the local design choices.
