a 12 volt system is ac or dc.
a 12 volt system is ac or dc.
is a 12 volt system ac or dc?
ac
the farm installed its own water system and water towers. some individuals initially resisted running electricity and power lines beyond the administration office and publishing center, with the hope of establishing off-grid decentralized utilities instead. the electrical supply 120/240 vac mains system evolved from supplying only a few industrial buildings near the main farm road in 1971 to the point by the 1980s where most areas were covered by 12 volt automotive battery trickle charge systems. most homes phased out the use of kerosene lamps by 1975, as they converted to 12 volt lighting and rv appliances or re-purposed automotive lighting fixtures. off-grid low voltage 12 volt dc systems were also sometimes powered by swapping vehicle batteries. after the economic change in 1983, all homes were connected to the standard electrical grid.
the farm (tennessee)
bullet::::- automotive interfaces for charging mobile devices: cigar lighter receptacle and usb respectively had 12 volt and 5 volt systems. the 5 volt system derived from data buses for pcs whereas the 12 volt system derived from the automobile's native electrical system. the popularity of car chargers for cell phones is what later led to this movement, and later on newer models of automobiles were equipped with both (sometimes usb on the car radio faceplate).









































section::::2010s.
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