Temperature measurement expert and China's best thermocouple manufacturer - Foshan Shengang Automation answers:
Hello:
1. According to the law of the intermediate conductor , there is no length requirement for the compensation wire.
2. If qualified compensation wires are used, the temperatures in rooms A and B, as well as outdoors, have no effect on signal transmission, because the display instrument itself has a temperature compensation function.
3. According to the middle conductor law, outdoor compensation wires do not need to be insulated.