Electricity on the grounds will be shared through common hookups and branch circuits.
Basic precautions are essential for the benefit of all.
HIGH VOLTAGE SURGE
HIGHER THAN NORMAL VOLTAGE
LOWER THAN NORMAL VOLTAGE
WHAT CAN YOU
Some items won't necessarily be damaged by low voltage. They just won't work or won't work well. Examples: incandescent lamps, heaters, clocks, non-automatic coffee makers.
Some appliances are known to fail even, when turned off, and create disasters. Examples: toasters, automatic coffee makers and heating items which should not be plugged in when not in use, in your RV or at home.