A 350 MCM copper conductor with an insulation factor of 90 degrees C is rated at 260 amps.
A #2 copper conductor will limit the voltage drop to 3% or less when supplying 60 amps for 260 feet on a 220 volt system.
260 feet is 260 feet 0 inches, or 3,120 inches.
260 cm = 102.362205 in 260 cm = 8.53018373 ft
260 meters is 853 feet .
Every yard is equal to 3 feet. 260 x 3 = 780. 260 yards = 780 feet.
260 square feet is the room size.
260 meters is 853 feet.
260 square yards = 2340 square feet
260 square feet equates to about 24.155 m2
260 feet = 79.248 meters.
260 acres = 11,325,600ft²
If the temperature gauge is to remain up past the 260 mark, there could be many problems. If no problems are in existence then the simple work of replacing a fuse or wire could correct the thermostat to show the actual temperature.